├── VVeboTableViewDemo ├── t_comments@2x.png ├── t_repost@2x.png ├── corner_circle@2x.png ├── VVeboTableView.h ├── ViewController.h ├── SDWebImage │ ├── UIImage+MultiFormat.h │ ├── SDWebImageOperation.h │ ├── UIImage+GIF.h │ ├── NSData+ImageContentType.h │ ├── SDWebImageDecoder.h │ ├── UIImage+WebP.h │ ├── UIView+WebCacheOperation.h │ ├── NSData+ImageContentType.m │ ├── SDWebImageCompat.m │ ├── SDWebImageCompat.h │ ├── UIView+WebCacheOperation.m │ ├── UIImage+WebP.m │ ├── SDWebImageDownloaderOperation.h │ ├── SDWebImageDecoder.m │ ├── MKAnnotationView+WebCache.m │ ├── UIImageView+HighlightedWebCache.m │ ├── UIImage+MultiFormat.m │ ├── SDWebImagePrefetcher.h │ ├── UIImageView+HighlightedWebCache.h │ ├── MKAnnotationView+WebCache.h │ ├── UIImage+GIF.m │ ├── SDWebImagePrefetcher.m │ ├── UIImageView+WebCache.m │ ├── SDWebImageDownloader.h │ ├── UIButton+WebCache.m │ ├── SDImageCache.h │ ├── UIImageView+WebCache.h │ ├── SDWebImageManager.h │ ├── UIButton+WebCache.h │ ├── SDWebImageDownloader.m │ └── SDWebImageManager.m ├── AppDelegate.h ├── UIScreen+Additions.h ├── main.m ├── view │ ├── VVeboLabel.h │ ├── VVeboTableViewCell.h │ └── VVeboTableViewCell.m ├── ViewController.m ├── Images.xcassets │ └── AppIcon.appiconset │ │ └── Contents.json ├── Info.plist ├── NSString+Additions.h ├── Base.lproj │ ├── Main.storyboard │ └── LaunchScreen.xib ├── AppDelegate.m ├── UIView+Additions.h ├── UIScreen+Additions.m ├── NSString+Additions.m ├── VVeboTableView.m └── UIView+Additions.m ├── VVeboTableViewDemo.xcodeproj └── project.xcworkspace │ └── contents.xcworkspacedata ├── README.md ├── .gitignore └── VVeboTableViewDemoTests ├── Info.plist └── VVeboTableViewDemoTests.m /VVeboTableViewDemo/t_comments@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/johnil/VVeboTableViewDemo/HEAD/VVeboTableViewDemo/t_comments@2x.png -------------------------------------------------------------------------------- /VVeboTableViewDemo/t_repost@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/johnil/VVeboTableViewDemo/HEAD/VVeboTableViewDemo/t_repost@2x.png -------------------------------------------------------------------------------- /VVeboTableViewDemo/corner_circle@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/johnil/VVeboTableViewDemo/HEAD/VVeboTableViewDemo/corner_circle@2x.png -------------------------------------------------------------------------------- /VVeboTableViewDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/VVeboTableView.h: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboTableView.h 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface VVeboTableView : UITableView 12 | 13 | @end 14 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+MultiFormat.h: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+MultiFormat.h 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 07/06/13. 6 | // Copyright (c) 2013 Dailymotion. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface UIImage (MultiFormat) 12 | 13 | + (UIImage *)sd_imageWithData:(NSData *)data; 14 | 15 | @end 16 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | 16 | @end 17 | 18 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/UIScreen+Additions.h: -------------------------------------------------------------------------------- 1 | // 2 | // UIScreen+Additions.h 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-15. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface UIScreen (Additions) 12 | 13 | + (float)screenWidth; 14 | + (float)screenHeight; 15 | + (BOOL)isRetina; 16 | + (float)scale; 17 | 18 | @end 19 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # VVeboTableViewDemo 2 | 3 | 此项目由VVebo剥离，希望你能通过这个demo看到我是如何进行TableView流畅度优化的。 4 | 5 | 主要思路如下： 6 | 7 | 1.异步渲染内容到图片。 8 | 9 | 2.按照滑动速度按需加载内容。 10 | 11 | 3.重写处理网络图片加载。 12 | 13 | 实际上做完前两点就可以很流畅了。我把内容都异步渲染到了一张图上，尽可能减少Cell层级。 14 | 15 | 项目中我用的是SDWebImageManager。在我变态级要求下，网络图片加载的线程还是会引起丝毫卡顿的。在VVebo中我将网络图片加载重写了。此demo中我并没有将重写图片加载的内容剥离，单单这样已经可以很流畅了。 16 | 17 | 新浪微博:[@Johnil](http://weibo.com/u/3732851864) 18 | 19 | 如果你有任何疑问，欢迎随时到新浪微博来交流。 -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageOperation.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | 11 | @protocol SDWebImageOperation 12 | 13 | - (void)cancel; 14 | 15 | @end 16 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+GIF.h: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+GIF.h 3 | // LBGIFImage 4 | // 5 | // Created by Laurin Brandner on 06.01.12. 6 | // Copyright (c) 2012 __MyCompanyName__. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface UIImage (GIF) 12 | 13 | + (UIImage *)sd_animatedGIFNamed:(NSString *)name; 14 | 15 | + (UIImage *)sd_animatedGIFWithData:(NSData *)data; 16 | 17 | - (UIImage *)sd_animatedImageByScalingAndCroppingToSize:(CGSize)size; 18 | 19 | @end 20 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/NSData+ImageContentType.h: -------------------------------------------------------------------------------- 1 | // 2 | // Created by Fabrice Aneche on 06/01/14. 3 | // Copyright (c) 2014 Dailymotion. All rights reserved. 4 | // 5 | 6 | #import 7 | 8 | @interface NSData (ImageContentType) 9 | 10 | /** 11 | * Compute the content type for an image data 12 | * 13 | * @param data the input data 14 | * 15 | * @return the content type as string (i.e. image/jpeg, image/gif) 16 | */ 17 | + (NSString *)sd_contentTypeForImageData:(NSData *)data; 18 | 19 | @end 20 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageDecoder.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * Created by james on 9/28/11. 6 | * 7 | * For the full copyright and license information, please view the LICENSE 8 | * file that was distributed with this source code. 9 | */ 10 | 11 | #import 12 | #import "SDWebImageCompat.h" 13 | 14 | @interface UIImage (ForceDecode) 15 | 16 | + (UIImage *)decodedImageWithImage:(UIImage *)image; 17 | 18 | @end 19 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | build/ 4 | *.pbxuser 5 | !default.pbxuser 6 | *.mode1v3 7 | !default.mode1v3 8 | *.mode2v3 9 | !default.mode2v3 10 | *.perspectivev3 11 | !default.perspectivev3 12 | xcuserdata 13 | *.xccheckout 14 | *.moved-aside 15 | DerivedData 16 | *.hmap 17 | *.ipa 18 | *.xcuserstate 19 | 20 | # CocoaPods 21 | # 22 | # We recommend against adding the Pods directory to your .gitignore. However 23 | # you should judge for yourself, the pros and cons are mentioned at: 24 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control 25 | # 26 | #Pods/ 27 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/view/VVeboLabel.h: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboLabel.h 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface VVeboLabel : UIView 12 | 13 | @property (nonatomic, strong) NSString *text; 14 | @property (nonatomic, strong) UIColor *textColor; 15 | @property (nonatomic, strong) UIFont *font; 16 | @property (nonatomic) NSInteger lineSpace; 17 | @property (nonatomic) NSTextAlignment textAlignment; 18 | 19 | - (void)debugDraw; 20 | - (void)clear; 21 | - (BOOL)touchPoint:(CGPoint)point; 22 | 23 | @end 24 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+WebP.h: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+WebP.h 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 07/06/13. 6 | // Copyright (c) 2013 Dailymotion. All rights reserved. 7 | // 8 | 9 | #ifdef SD_WEBP 10 | 11 | #import 12 | 13 | // Fix for issue #416 Undefined symbols for architecture armv7 since WebP introduction when deploying to device 14 | void WebPInitPremultiplyNEON(void); 15 | 16 | void WebPInitUpsamplersNEON(void); 17 | 18 | void VP8DspInitNEON(void); 19 | 20 | @interface UIImage (WebP) 21 | 22 | + (UIImage *)sd_imageWithWebPData:(NSData *)data; 23 | 24 | @end 25 | 26 | #endif 27 | -------------------------------------------------------------------------------- /VVeboTableViewDemoTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | com.johnil.$(PRODUCT_NAME:rfc1034identifier) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | BNDL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | 24 | 25 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/view/VVeboTableViewCell.h: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboTableViewCell.h 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | #define SIZE_GAP_LEFT 15 11 | #define SIZE_GAP_TOP 13 12 | #define SIZE_AVATAR 40 13 | #define SIZE_GAP_BIG 10 14 | #define SIZE_GAP_IMG 5 15 | #define SIZE_GAP_SMALL 5 16 | #define SIZE_IMAGE 80 17 | #define SIZE_FONT 17 18 | #define SIZE_FONT_NAME (SIZE_FONT-3) 19 | #define SIZE_FONT_SUBTITLE (SIZE_FONT-8) 20 | #define FontWithSize(s) [UIFont fontWithName:@"HelveticaNeue-Light" size:s] 21 | #define SIZE_FONT_CONTENT 17 22 | #define SIZE_FONT_SUBCONTENT (SIZE_FONT_CONTENT-1) 23 | 24 | @interface VVeboTableViewCell : UITableViewCell 25 | 26 | @property (nonatomic, weak) NSDictionary *data; 27 | - (void)draw; 28 | - (void)clear; 29 | - (void)releaseMemory; 30 | 31 | @end 32 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "ViewController.h" 10 | #import "VVeboTableView.h" 11 | @interface ViewController () 12 | 13 | @end 14 | 15 | @implementation ViewController { 16 | VVeboTableView *tableView; 17 | } 18 | 19 | - (void)viewDidLoad { 20 | [super viewDidLoad]; 21 | tableView = [[VVeboTableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain]; 22 | tableView.contentInset = UIEdgeInsetsMake(20, 0, 0, 0); 23 | tableView.scrollIndicatorInsets = tableView.contentInset; 24 | [self.view addSubview:tableView]; 25 | 26 | UIToolbar *statusBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 20)]; 27 | [self.view addSubview:statusBar]; 28 | } 29 | 30 | - (void)didReceiveMemoryWarning { 31 | [super didReceiveMemoryWarning]; 32 | // Dispose of any resources that can be recreated. 33 | } 34 | 35 | @end 36 | -------------------------------------------------------------------------------- /VVeboTableViewDemoTests/VVeboTableViewDemoTests.m: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboTableViewDemoTests.m 3 | // VVeboTableViewDemoTests 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | 12 | @interface VVeboTableViewDemoTests : XCTestCase 13 | 14 | @end 15 | 16 | @implementation VVeboTableViewDemoTests 17 | 18 | - (void)setUp { 19 | [super setUp]; 20 | // Put setup code here. This method is called before the invocation of each test method in the class. 21 | } 22 | 23 | - (void)tearDown { 24 | // Put teardown code here. This method is called after the invocation of each test method in the class. 25 | [super tearDown]; 26 | } 27 | 28 | - (void)testExample { 29 | // This is an example of a functional test case. 30 | XCTAssert(YES, @"Pass"); 31 | } 32 | 33 | - (void)testPerformanceExample { 34 | // This is an example of a performance test case. 35 | [self measureBlock:^{ 36 | // Put the code you want to measure the time of here. 37 | }]; 38 | } 39 | 40 | @end 41 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIView+WebCacheOperation.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageManager.h" 11 | 12 | @interface UIView (WebCacheOperation) 13 | 14 | /** 15 | * Set the image load operation (storage in a UIView based dictionary) 16 | * 17 | * @param operation the operation 18 | * @param key key for storing the operation 19 | */ 20 | - (void)sd_setImageLoadOperation:(id)operation forKey:(NSString *)key; 21 | 22 | /** 23 | * Cancel all operations for the current UIView and key 24 | * 25 | * @param key key for identifying the operations 26 | */ 27 | - (void)sd_cancelImageLoadOperationWithKey:(NSString *)key; 28 | 29 | /** 30 | * Just remove the operations corresponding to the current UIView and key without cancelling them 31 | * 32 | * @param key key for identifying the operations 33 | */ 34 | - (void)sd_removeImageLoadOperationWithKey:(NSString *)key; 35 | 36 | @end 37 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/NSData+ImageContentType.m: -------------------------------------------------------------------------------- 1 | // 2 | // Created by Fabrice Aneche on 06/01/14. 3 | // Copyright (c) 2014 Dailymotion. All rights reserved. 4 | // 5 | 6 | #import "NSData+ImageContentType.h" 7 | 8 | 9 | @implementation NSData (ImageContentType) 10 | 11 | + (NSString *)sd_contentTypeForImageData:(NSData *)data { 12 | uint8_t c; 13 | [data getBytes:&c length:1]; 14 | switch (c) { 15 | case 0xFF: 16 | return @"image/jpeg"; 17 | case 0x89: 18 | return @"image/png"; 19 | case 0x47: 20 | return @"image/gif"; 21 | case 0x49: 22 | case 0x4D: 23 | return @"image/tiff"; 24 | case 0x52: 25 | // R as RIFF for WEBP 26 | if ([data length] < 12) { 27 | return nil; 28 | } 29 | 30 | NSString *testString = [[NSString alloc] initWithData:[data subdataWithRange:NSMakeRange(0, 12)] encoding:NSASCIIStringEncoding]; 31 | if ([testString hasPrefix:@"RIFF"] && [testString hasSuffix:@"WEBP"]) { 32 | return @"image/webp"; 33 | } 34 | 35 | return nil; 36 | } 37 | return nil; 38 | } 39 | 40 | @end 41 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/Images.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "29x29", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "40x40", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "40x40", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "60x60", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "60x60", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "ipad", 35 | "size" : "29x29", 36 | "scale" : "1x" 37 | }, 38 | { 39 | "idiom" : "ipad", 40 | "size" : "29x29", 41 | "scale" : "2x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "40x40", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "40x40", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "76x76", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "76x76", 61 | "scale" : "2x" 62 | } 63 | ], 64 | "info" : { 65 | "version" : 1, 66 | "author" : "xcode" 67 | } 68 | } -------------------------------------------------------------------------------- /VVeboTableViewDemo/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | com.johnil.$(PRODUCT_NAME:rfc1034identifier) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UILaunchStoryboardName 26 | LaunchScreen 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageCompat.m: -------------------------------------------------------------------------------- 1 | // 2 | // SDWebImageCompat.m 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 11/12/12. 6 | // Copyright (c) 2012 Dailymotion. All rights reserved. 7 | // 8 | 9 | #import "SDWebImageCompat.h" 10 | 11 | #if !__has_feature(objc_arc) 12 | #error SDWebImage is ARC only. Either turn on ARC for the project or use -fobjc-arc flag 13 | #endif 14 | 15 | inline UIImage *SDScaledImageForKey(NSString *key, UIImage *image) { 16 | if (!image) { 17 | return nil; 18 | } 19 | 20 | if ([image.images count] > 0) { 21 | NSMutableArray *scaledImages = [NSMutableArray array]; 22 | 23 | for (UIImage *tempImage in image.images) { 24 | [scaledImages addObject:SDScaledImageForKey(key, tempImage)]; 25 | } 26 | 27 | return [UIImage animatedImageWithImages:scaledImages duration:image.duration]; 28 | } 29 | else { 30 | if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) { 31 | CGFloat scale = 1.0; 32 | if (key.length >= 8) { 33 | // Search @2x. at the end of the string, before a 3 to 4 extension length (only if key len is 8 or more @2x. + 4 len ext) 34 | NSRange range = [key rangeOfString:@"@2x." options:0 range:NSMakeRange(key.length - 8, 5)]; 35 | if (range.location != NSNotFound) { 36 | scale = 2.0; 37 | } 38 | } 39 | 40 | UIImage *scaledImage = [[UIImage alloc] initWithCGImage:image.CGImage scale:scale orientation:image.imageOrientation]; 41 | image = scaledImage; 42 | } 43 | return image; 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/NSString+Additions.h: -------------------------------------------------------------------------------- 1 | // 2 | // NSString+Additions.h 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-15. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | @interface NSString (Additions) 12 | 13 | #pragma mark - java api 14 | - (NSUInteger) compareTo: (NSString*) comp; 15 | - (NSUInteger) compareToIgnoreCase: (NSString*) comp; 16 | - (bool) contains: (NSString*) substring; 17 | - (bool) endsWith: (NSString*) substring; 18 | - (bool) startsWith: (NSString*) substring; 19 | - (NSUInteger) indexOf: (NSString*) substring; 20 | - (NSUInteger) indexOf:(NSString *)substring startingFrom: (NSUInteger) index; 21 | - (NSUInteger) lastIndexOf: (NSString*) substring; 22 | - (NSUInteger) lastIndexOf:(NSString *)substring startingFrom: (NSUInteger) index; 23 | - (NSString*) substringFromIndex:(NSUInteger)from toIndex: (NSUInteger) to; 24 | - (NSString*) trim; 25 | - (NSArray*) split: (NSString*) token; 26 | - (NSString*) replace: (NSString*) target withString: (NSString*) replacement; 27 | - (NSArray*) split: (NSString*) token limit: (NSUInteger) maxResults; 28 | 29 | - (CGSize)sizeWithConstrainedToWidth:(float)width fromFont:(UIFont *)font1 lineSpace:(float)lineSpace; 30 | - (CGSize)sizeWithConstrainedToSize:(CGSize)size fromFont:(UIFont *)font1 lineSpace:(float)lineSpace; 31 | - (void)drawInContext:(CGContextRef)context withPosition:(CGPoint)p andFont:(UIFont *)font andTextColor:(UIColor *)color andHeight:(float)height andWidth:(float)width; 32 | - (void)drawInContext:(CGContextRef)context withPosition:(CGPoint)p andFont:(UIFont *)font andTextColor:(UIColor *)color andHeight:(float)height; 33 | 34 | @end 35 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageCompat.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * (c) Jamie Pinkham 5 | * 6 | * For the full copyright and license information, please view the LICENSE 7 | * file that was distributed with this source code. 8 | */ 9 | 10 | #import 11 | 12 | #ifdef __OBJC_GC__ 13 | #error SDWebImage does not support Objective-C Garbage Collection 14 | #endif 15 | 16 | #if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_5_0 17 | #error SDWebImage doesn't support Deployement Target version < 5.0 18 | #endif 19 | 20 | #if !TARGET_OS_IPHONE 21 | #import 22 | #ifndef UIImage 23 | #define UIImage NSImage 24 | #endif 25 | #ifndef UIImageView 26 | #define UIImageView NSImageView 27 | #endif 28 | #else 29 | 30 | #import 31 | 32 | #endif 33 | 34 | #ifndef NS_ENUM 35 | #define NS_ENUM(_type, _name) enum _name : _type _name; enum _name : _type 36 | #endif 37 | 38 | #ifndef NS_OPTIONS 39 | #define NS_OPTIONS(_type, _name) enum _name : _type _name; enum _name : _type 40 | #endif 41 | 42 | #if OS_OBJECT_USE_OBJC 43 | #undef SDDispatchQueueRelease 44 | #undef SDDispatchQueueSetterSementics 45 | #define SDDispatchQueueRelease(q) 46 | #define SDDispatchQueueSetterSementics strong 47 | #else 48 | #undef SDDispatchQueueRelease 49 | #undef SDDispatchQueueSetterSementics 50 | #define SDDispatchQueueRelease(q) (dispatch_release(q)) 51 | #define SDDispatchQueueSetterSementics assign 52 | #endif 53 | 54 | extern UIImage *SDScaledImageForKey(NSString *key, UIImage *image); 55 | 56 | typedef void(^SDWebImageNoParamsBlock)(); 57 | 58 | #define dispatch_main_sync_safe(block)\ 59 | if ([NSThread isMainThread]) {\ 60 | block();\ 61 | } else {\ 62 | dispatch_sync(dispatch_get_main_queue(), block);\ 63 | } 64 | 65 | #define dispatch_main_async_safe(block)\ 66 | if ([NSThread isMainThread]) {\ 67 | block();\ 68 | } else {\ 69 | dispatch_async(dispatch_get_main_queue(), block);\ 70 | } 71 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIView+WebCacheOperation.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "UIView+WebCacheOperation.h" 10 | #import "objc/runtime.h" 11 | 12 | static char loadOperationKey; 13 | 14 | @implementation UIView (WebCacheOperation) 15 | 16 | - (NSMutableDictionary *)operationDictionary { 17 | NSMutableDictionary *operations = objc_getAssociatedObject(self, &loadOperationKey); 18 | if (operations) { 19 | return operations; 20 | } 21 | operations = [NSMutableDictionary dictionary]; 22 | objc_setAssociatedObject(self, &loadOperationKey, operations, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 23 | return operations; 24 | } 25 | 26 | - (void)sd_setImageLoadOperation:(id)operation forKey:(NSString *)key { 27 | [self sd_cancelImageLoadOperationWithKey:key]; 28 | NSMutableDictionary *operationDictionary = [self operationDictionary]; 29 | [operationDictionary setObject:operation forKey:key]; 30 | } 31 | 32 | - (void)sd_cancelImageLoadOperationWithKey:(NSString *)key { 33 | // Cancel in progress downloader from queue 34 | NSMutableDictionary *operationDictionary = [self operationDictionary]; 35 | id operations = [operationDictionary objectForKey:key]; 36 | if (operations) { 37 | if ([operations isKindOfClass:[NSArray class]]) { 38 | for (id operation in operations) { 39 | if (operation) { 40 | [operation cancel]; 41 | } 42 | } 43 | } else if ([operations conformsToProtocol:@protocol(SDWebImageOperation)]){ 44 | [(id) operations cancel]; 45 | } 46 | [operationDictionary removeObjectForKey:key]; 47 | } 48 | } 49 | 50 | - (void)sd_removeImageLoadOperationWithKey:(NSString *)key { 51 | NSMutableDictionary *operationDictionary = [self operationDictionary]; 52 | [operationDictionary removeObjectForKey:key]; 53 | } 54 | 55 | @end 56 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "AppDelegate.h" 10 | 11 | @interface AppDelegate () 12 | 13 | @end 14 | 15 | @implementation AppDelegate 16 | 17 | 18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 19 | // Override point for customization after application launch. 20 | return YES; 21 | } 22 | 23 | - (void)applicationWillResignActive:(UIApplication *)application { 24 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 25 | // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. 26 | } 27 | 28 | - (void)applicationDidEnterBackground:(UIApplication *)application { 29 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 30 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 31 | } 32 | 33 | - (void)applicationWillEnterForeground:(UIApplication *)application { 34 | // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. 35 | } 36 | 37 | - (void)applicationDidBecomeActive:(UIApplication *)application { 38 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 39 | } 40 | 41 | - (void)applicationWillTerminate:(UIApplication *)application { 42 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 43 | } 44 | 45 | @end 46 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+WebP.m: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+WebP.m 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 07/06/13. 6 | // Copyright (c) 2013 Dailymotion. All rights reserved. 7 | // 8 | 9 | #ifdef SD_WEBP 10 | #import "UIImage+WebP.h" 11 | #import "webp/decode.h" 12 | 13 | // Callback for CGDataProviderRelease 14 | static void FreeImageData(void *info, const void *data, size_t size) 15 | { 16 | free((void *)data); 17 | } 18 | 19 | @implementation UIImage (WebP) 20 | 21 | + (UIImage *)sd_imageWithWebPData:(NSData *)data { 22 | WebPDecoderConfig config; 23 | if (!WebPInitDecoderConfig(&config)) { 24 | return nil; 25 | } 26 | 27 | if (WebPGetFeatures(data.bytes, data.length, &config.input) != VP8_STATUS_OK) { 28 | return nil; 29 | } 30 | 31 | config.output.colorspace = config.input.has_alpha ? MODE_rgbA : MODE_RGB; 32 | config.options.use_threads = 1; 33 | 34 | // Decode the WebP image data into a RGBA value array. 35 | if (WebPDecode(data.bytes, data.length, &config) != VP8_STATUS_OK) { 36 | return nil; 37 | } 38 | 39 | int width = config.input.width; 40 | int height = config.input.height; 41 | if (config.options.use_scaling) { 42 | width = config.options.scaled_width; 43 | height = config.options.scaled_height; 44 | } 45 | 46 | // Construct a UIImage from the decoded RGBA value array. 47 | CGDataProviderRef provider = 48 | CGDataProviderCreateWithData(NULL, config.output.u.RGBA.rgba, config.output.u.RGBA.size, FreeImageData); 49 | CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB(); 50 | CGBitmapInfo bitmapInfo = config.input.has_alpha ? kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedLast : 0; 51 | size_t components = config.input.has_alpha ? 4 : 3; 52 | CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault; 53 | CGImageRef imageRef = CGImageCreate(width, height, 8, components * 8, components * width, colorSpaceRef, bitmapInfo, provider, NULL, NO, renderingIntent); 54 | 55 | CGColorSpaceRelease(colorSpaceRef); 56 | CGDataProviderRelease(provider); 57 | 58 | UIImage *image = [[UIImage alloc] initWithCGImage:imageRef]; 59 | CGImageRelease(imageRef); 60 | 61 | return image; 62 | } 63 | 64 | @end 65 | 66 | #if !COCOAPODS 67 | // Functions to resolve some undefined symbols when using WebP and force_load flag 68 | void WebPInitPremultiplyNEON(void) {} 69 | void WebPInitUpsamplersNEON(void) {} 70 | void VP8DspInitNEON(void) {} 71 | #endif 72 | 73 | #endif 74 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageDownloaderOperation.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageDownloader.h" 11 | #import "SDWebImageOperation.h" 12 | 13 | @interface SDWebImageDownloaderOperation : NSOperation 14 | 15 | /** 16 | * The request used by the operation's connection. 17 | */ 18 | @property (strong, nonatomic, readonly) NSURLRequest *request; 19 | 20 | /** 21 | * Whether the URL connection should consult the credential storage for authenticating the connection. `YES` by default. 22 | * 23 | * This is the value that is returned in the `NSURLConnectionDelegate` method `-connectionShouldUseCredentialStorage:`. 24 | */ 25 | @property (nonatomic, assign) BOOL shouldUseCredentialStorage; 26 | 27 | /** 28 | * The credential used for authentication challenges in `-connection:didReceiveAuthenticationChallenge:`. 29 | * 30 | * This will be overridden by any shared credentials that exist for the username or password of the request URL, if present. 31 | */ 32 | @property (nonatomic, strong) NSURLCredential *credential; 33 | 34 | /** 35 | * The SDWebImageDownloaderOptions for the receiver. 36 | */ 37 | @property (assign, nonatomic, readonly) SDWebImageDownloaderOptions options; 38 | 39 | /** 40 | * Initializes a `SDWebImageDownloaderOperation` object 41 | * 42 | * @see SDWebImageDownloaderOperation 43 | * 44 | * @param request the URL request 45 | * @param options downloader options 46 | * @param progressBlock the block executed when a new chunk of data arrives. 47 | * @note the progress block is executed on a background queue 48 | * @param completedBlock the block executed when the download is done. 49 | * @note the completed block is executed on the main queue for success. If errors are found, there is a chance the block will be executed on a background queue 50 | * @param cancelBlock the block executed if the download (operation) is cancelled 51 | * 52 | * @return the initialized instance 53 | */ 54 | - (id)initWithRequest:(NSURLRequest *)request 55 | options:(SDWebImageDownloaderOptions)options 56 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 57 | completed:(SDWebImageDownloaderCompletedBlock)completedBlock 58 | cancelled:(SDWebImageNoParamsBlock)cancelBlock; 59 | 60 | @end 61 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/UIView+Additions.h: -------------------------------------------------------------------------------- 1 | // 2 | // UIView+Additions.h 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-7. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | typedef void(^touchBlock)(UITouch *t, UIView *target); 12 | 13 | @interface UIView (Additions) 14 | - (float)x; 15 | - (float)y; 16 | - (float)width; 17 | - (float)height; 18 | 19 | - (void)setX:(float)x; 20 | - (void)setY:(float)y; 21 | - (void)setWidth:(float)w; 22 | - (void)setHeight:(float)h; 23 | 24 | - (float)boundsWidth; 25 | - (float)boundsHeight; 26 | - (void)setBoundsWidth:(float)w; 27 | - (void)setBoundsHeight:(float)h; 28 | // 29 | //- (void)fadeIn; 30 | //- (void)fadeOut; 31 | //- (void)fadeInOnComplet:(void(^)(BOOL f))complet; 32 | //- (void)fadeOutOnComplet:(void(^)(BOOL f))complet; 33 | // 34 | //- (void)removeAllSubviews; 35 | //- (void)removeSubviewWithTag:(NSInteger)tag; 36 | //- (void)removeSubviewExceptTag:(NSInteger)tag; 37 | //- (void)removeSubviewExceptClass:(Class)class1; 38 | // 39 | //- (UIImage *)toAlphaRetinaImageRealTime; 40 | //- (UIImage *)toRetinaImage; 41 | //- (UIImage *)toAlphaRetinaImage; 42 | //- (UIImage *)toImage; 43 | //- (UIImage *)toImagewhithAlpha:(BOOL)alpha; 44 | //- (UIImage *)toImageWithRect:(CGRect)frame; 45 | //- (UIImage *)toImageWithRect:(CGRect)frame withAlpha:(BOOL)alpha; 46 | //- (UIImage *)visbleToImage; 47 | // 48 | //- (void)addWhiteView; 49 | //- (void)addWhiteViewWithAlpha:(float)alpha; 50 | //- (void)addBlackView; 51 | //- (void)addShadowWithColor:(UIColor *)color; 52 | //- (void)addShadow; 53 | //- (void)addShadowWithAlpha:(float)alpha; 54 | //- (void)removeShadow; 55 | //- (UIView *)findAndResignFirstResponder; 56 | //- (void)addBorder; 57 | //- (UIView *)addLine:(UIColor *)color frame:(CGRect)frame; 58 | // 59 | //- (void)addCorner; 60 | //- (void)shake:(float)range; 61 | //- (void)shakeRepeat:(float)range; 62 | //- (void)shakeX:(float)range; 63 | //- (void)rasterize; 64 | // 65 | //+ (void)vveboAnimations:(void (^)(void))animations; 66 | //+ (void)vveboAnimations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion; 67 | // 68 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations; 69 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion; 70 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion; 71 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion; 72 | // 73 | //- (void)addLine:(CGRect)rect; 74 | //- (BOOL)hasActionSheetOrAlert; 75 | //- (UIView *)subviewWithTag:(NSInteger)tag; 76 | @end 77 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageDecoder.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * Created by james on 9/28/11. 6 | * 7 | * For the full copyright and license information, please view the LICENSE 8 | * file that was distributed with this source code. 9 | */ 10 | 11 | #import "SDWebImageDecoder.h" 12 | 13 | @implementation UIImage (ForceDecode) 14 | 15 | + (UIImage *)decodedImageWithImage:(UIImage *)image { 16 | if (image.images) { 17 | // Do not decode animated images 18 | return image; 19 | } 20 | 21 | CGImageRef imageRef = image.CGImage; 22 | CGSize imageSize = CGSizeMake(CGImageGetWidth(imageRef), CGImageGetHeight(imageRef)); 23 | CGRect imageRect = (CGRect){.origin = CGPointZero, .size = imageSize}; 24 | 25 | CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); 26 | CGBitmapInfo bitmapInfo = CGImageGetBitmapInfo(imageRef); 27 | 28 | int infoMask = (bitmapInfo & kCGBitmapAlphaInfoMask); 29 | BOOL anyNonAlpha = (infoMask == kCGImageAlphaNone || 30 | infoMask == kCGImageAlphaNoneSkipFirst || 31 | infoMask == kCGImageAlphaNoneSkipLast); 32 | 33 | // CGBitmapContextCreate doesn't support kCGImageAlphaNone with RGB. 34 | // https://developer.apple.com/library/mac/#qa/qa1037/_index.html 35 | if (infoMask == kCGImageAlphaNone && CGColorSpaceGetNumberOfComponents(colorSpace) > 1) { 36 | // Unset the old alpha info. 37 | bitmapInfo &= ~kCGBitmapAlphaInfoMask; 38 | 39 | // Set noneSkipFirst. 40 | bitmapInfo |= kCGImageAlphaNoneSkipFirst; 41 | } 42 | // Some PNGs tell us they have alpha but only 3 components. Odd. 43 | else if (!anyNonAlpha && CGColorSpaceGetNumberOfComponents(colorSpace) == 3) { 44 | // Unset the old alpha info. 45 | bitmapInfo &= ~kCGBitmapAlphaInfoMask; 46 | bitmapInfo |= kCGImageAlphaPremultipliedFirst; 47 | } 48 | 49 | // It calculates the bytes-per-row based on the bitsPerComponent and width arguments. 50 | CGContextRef context = CGBitmapContextCreate(NULL, 51 | imageSize.width, 52 | imageSize.height, 53 | CGImageGetBitsPerComponent(imageRef), 54 | 0, 55 | colorSpace, 56 | bitmapInfo); 57 | CGColorSpaceRelease(colorSpace); 58 | 59 | // If failed, return undecompressed image 60 | if (!context) return image; 61 | 62 | CGContextDrawImage(context, imageRect, imageRef); 63 | CGImageRef decompressedImageRef = CGBitmapContextCreateImage(context); 64 | 65 | CGContextRelease(context); 66 | 67 | UIImage *decompressedImage = [UIImage imageWithCGImage:decompressedImageRef scale:image.scale orientation:image.imageOrientation]; 68 | CGImageRelease(decompressedImageRef); 69 | return decompressedImage; 70 | } 71 | 72 | @end 73 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/UIScreen+Additions.m: -------------------------------------------------------------------------------- 1 | // 2 | // UIScreen+Additions.m 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-15. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "UIScreen+Additions.h" 10 | 11 | @implementation UIScreen (Additions) 12 | 13 | + (float)screenWidth{ 14 | if (UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) { 15 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 16 | return [UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale; 17 | } else { 18 | return [UIScreen mainScreen].bounds.size.height; 19 | } 20 | } else { 21 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 22 | return [UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale; 23 | } else { 24 | return [UIScreen mainScreen].bounds.size.width; 25 | } 26 | } 27 | } 28 | 29 | + (float)screenHeight{ 30 | if (UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) { 31 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 32 | if ([UIApplication sharedApplication].statusBarFrame.size.width>20) { 33 | return [UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale-20; 34 | } 35 | return [UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale; 36 | } else { 37 | if ([UIApplication sharedApplication].statusBarFrame.size.width>20) { 38 | return [UIScreen mainScreen].bounds.size.width-20; 39 | } 40 | return [UIScreen mainScreen].bounds.size.width; 41 | } 42 | } else { 43 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 44 | if ([UIApplication sharedApplication].statusBarFrame.size.height>20) { 45 | return [UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale-20; 46 | } 47 | return [UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale; 48 | } else { 49 | if ([UIApplication sharedApplication].statusBarFrame.size.height>20) { 50 | return [UIScreen mainScreen].bounds.size.height-20; 51 | } 52 | return [UIScreen mainScreen].bounds.size.height; 53 | } 54 | } 55 | } 56 | 57 | + (BOOL)isRetina{ 58 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 59 | return [UIScreen mainScreen].nativeScale>=2; 60 | } else { 61 | return [UIScreen mainScreen].scale>=2; 62 | } 63 | } 64 | 65 | + (float)scale{ 66 | if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0) { 67 | return [UIScreen mainScreen].nativeScale; 68 | } else { 69 | return [UIScreen mainScreen].scale; 70 | } 71 | } 72 | 73 | @end 74 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/MKAnnotationView+WebCache.m: -------------------------------------------------------------------------------- 1 | // 2 | // MKAnnotationView+WebCache.m 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 14/03/12. 6 | // Copyright (c) 2012 Dailymotion. All rights reserved. 7 | // 8 | 9 | #import "MKAnnotationView+WebCache.h" 10 | #import "objc/runtime.h" 11 | #import "UIView+WebCacheOperation.h" 12 | 13 | static char imageURLKey; 14 | 15 | @implementation MKAnnotationView (WebCache) 16 | 17 | - (NSURL *)sd_imageURL { 18 | return objc_getAssociatedObject(self, &imageURLKey); 19 | } 20 | 21 | - (void)sd_setImageWithURL:(NSURL *)url { 22 | [self sd_setImageWithURL:url placeholderImage:nil options:0 completed:nil]; 23 | } 24 | 25 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder { 26 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 completed:nil]; 27 | } 28 | 29 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 30 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options completed:nil]; 31 | } 32 | 33 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock { 34 | [self sd_setImageWithURL:url placeholderImage:nil options:0 completed:completedBlock]; 35 | } 36 | 37 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 38 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 completed:completedBlock]; 39 | } 40 | 41 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 42 | [self sd_cancelCurrentImageLoad]; 43 | 44 | objc_setAssociatedObject(self, &imageURLKey, url, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 45 | self.image = placeholder; 46 | 47 | if (url) { 48 | __weak MKAnnotationView *wself = self; 49 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 50 | if (!wself) return; 51 | dispatch_main_sync_safe(^{ 52 | __strong MKAnnotationView *sself = wself; 53 | if (!sself) return; 54 | if (image) { 55 | sself.image = image; 56 | } 57 | if (completedBlock && finished) { 58 | completedBlock(image, error, cacheType, url); 59 | } 60 | }); 61 | }]; 62 | [self sd_setImageLoadOperation:operation forKey:@"MKAnnotationViewImage"]; 63 | } else { 64 | dispatch_main_async_safe(^{ 65 | NSError *error = [NSError errorWithDomain:@"SDWebImageErrorDomain" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 66 | if (completedBlock) { 67 | completedBlock(nil, error, SDImageCacheTypeNone, url); 68 | } 69 | }); 70 | } 71 | } 72 | 73 | - (void)sd_cancelCurrentImageLoad { 74 | [self sd_cancelImageLoadOperationWithKey:@"MKAnnotationViewImage"]; 75 | } 76 | 77 | @end 78 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImageView+HighlightedWebCache.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "UIImageView+HighlightedWebCache.h" 10 | #import "UIView+WebCacheOperation.h" 11 | 12 | #define UIImageViewHighlightedWebCacheOperationKey @"highlightedImage" 13 | 14 | @implementation UIImageView (HighlightedWebCache) 15 | 16 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url { 17 | [self sd_setHighlightedImageWithURL:url options:0 progress:nil completed:nil]; 18 | } 19 | 20 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options { 21 | [self sd_setHighlightedImageWithURL:url options:options progress:nil completed:nil]; 22 | } 23 | 24 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock { 25 | [self sd_setHighlightedImageWithURL:url options:0 progress:nil completed:completedBlock]; 26 | } 27 | 28 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 29 | [self sd_setHighlightedImageWithURL:url options:options progress:nil completed:completedBlock]; 30 | } 31 | 32 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock { 33 | [self sd_cancelCurrentHighlightedImageLoad]; 34 | 35 | if (url) { 36 | __weak UIImageView *wself = self; 37 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 38 | if (!wself) return; 39 | dispatch_main_sync_safe (^ 40 | { 41 | if (!wself) return; 42 | if (image) { 43 | wself.highlightedImage = image; 44 | [wself setNeedsLayout]; 45 | } 46 | if (completedBlock && finished) { 47 | completedBlock(image, error, cacheType, url); 48 | } 49 | }); 50 | }]; 51 | [self sd_setImageLoadOperation:operation forKey:UIImageViewHighlightedWebCacheOperationKey]; 52 | } else { 53 | dispatch_main_async_safe(^{ 54 | NSError *error = [NSError errorWithDomain:@"SDWebImageErrorDomain" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 55 | if (completedBlock) { 56 | completedBlock(nil, error, SDImageCacheTypeNone, url); 57 | } 58 | }); 59 | } 60 | } 61 | 62 | - (void)sd_cancelCurrentHighlightedImageLoad { 63 | [self sd_cancelImageLoadOperationWithKey:UIImageViewHighlightedWebCacheOperationKey]; 64 | } 65 | 66 | @end 67 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/Base.lproj/LaunchScreen.xib: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 20 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+MultiFormat.m: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+MultiFormat.m 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 07/06/13. 6 | // Copyright (c) 2013 Dailymotion. All rights reserved. 7 | // 8 | 9 | #import "UIImage+MultiFormat.h" 10 | #import "UIImage+GIF.h" 11 | #import "NSData+ImageContentType.h" 12 | #import 13 | 14 | #ifdef SD_WEBP 15 | #import "UIImage+WebP.h" 16 | #endif 17 | 18 | @implementation UIImage (MultiFormat) 19 | 20 | + (UIImage *)sd_imageWithData:(NSData *)data { 21 | UIImage *image; 22 | NSString *imageContentType = [NSData sd_contentTypeForImageData:data]; 23 | if ([imageContentType isEqualToString:@"image/gif"]) { 24 | image = [UIImage sd_animatedGIFWithData:data]; 25 | } 26 | #ifdef SD_WEBP 27 | else if ([imageContentType isEqualToString:@"image/webp"]) 28 | { 29 | image = [UIImage sd_imageWithWebPData:data]; 30 | } 31 | #endif 32 | else { 33 | image = [[UIImage alloc] initWithData:data]; 34 | UIImageOrientation orientation = [self sd_imageOrientationFromImageData:data]; 35 | if (orientation != UIImageOrientationUp) { 36 | image = [UIImage imageWithCGImage:image.CGImage 37 | scale:image.scale 38 | orientation:orientation]; 39 | } 40 | } 41 | 42 | 43 | return image; 44 | } 45 | 46 | 47 | +(UIImageOrientation)sd_imageOrientationFromImageData:(NSData *)imageData { 48 | UIImageOrientation result = UIImageOrientationUp; 49 | CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef)imageData, NULL); 50 | if (imageSource) { 51 | CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, NULL); 52 | if (properties) { 53 | CFTypeRef val; 54 | int exifOrientation; 55 | val = CFDictionaryGetValue(properties, kCGImagePropertyOrientation); 56 | if (val) { 57 | CFNumberGetValue(val, kCFNumberIntType, &exifOrientation); 58 | result = [self sd_exifOrientationToiOSOrientation:exifOrientation]; 59 | } // else - if it's not set it remains at up 60 | CFRelease((CFTypeRef) properties); 61 | } else { 62 | //NSLog(@"NO PROPERTIES, FAIL"); 63 | } 64 | CFRelease(imageSource); 65 | } 66 | return result; 67 | } 68 | 69 | #pragma mark EXIF orientation tag converter 70 | // Convert an EXIF image orientation to an iOS one. 71 | // reference see here: http://sylvana.net/jpegcrop/exif_orientation.html 72 | + (UIImageOrientation) sd_exifOrientationToiOSOrientation:(int)exifOrientation { 73 | UIImageOrientation orientation = UIImageOrientationUp; 74 | switch (exifOrientation) { 75 | case 1: 76 | orientation = UIImageOrientationUp; 77 | break; 78 | 79 | case 3: 80 | orientation = UIImageOrientationDown; 81 | break; 82 | 83 | case 8: 84 | orientation = UIImageOrientationLeft; 85 | break; 86 | 87 | case 6: 88 | orientation = UIImageOrientationRight; 89 | break; 90 | 91 | case 2: 92 | orientation = UIImageOrientationUpMirrored; 93 | break; 94 | 95 | case 4: 96 | orientation = UIImageOrientationDownMirrored; 97 | break; 98 | 99 | case 5: 100 | orientation = UIImageOrientationLeftMirrored; 101 | break; 102 | 103 | case 7: 104 | orientation = UIImageOrientationRightMirrored; 105 | break; 106 | default: 107 | break; 108 | } 109 | return orientation; 110 | } 111 | 112 | 113 | 114 | @end 115 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImagePrefetcher.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageManager.h" 11 | 12 | @class SDWebImagePrefetcher; 13 | 14 | @protocol SDWebImagePrefetcherDelegate 15 | 16 | @optional 17 | 18 | /** 19 | * Called when an image was prefetched. 20 | * 21 | * @param imagePrefetcher The current image prefetcher 22 | * @param imageURL The image url that was prefetched 23 | * @param finishedCount The total number of images that were prefetched (successful or not) 24 | * @param totalCount The total number of images that were to be prefetched 25 | */ 26 | - (void)imagePrefetcher:(SDWebImagePrefetcher *)imagePrefetcher didPrefetchURL:(NSURL *)imageURL finishedCount:(NSUInteger)finishedCount totalCount:(NSUInteger)totalCount; 27 | 28 | /** 29 | * Called when all images are prefetched. 30 | * @param imagePrefetcher The current image prefetcher 31 | * @param totalCount The total number of images that were prefetched (whether successful or not) 32 | * @param skippedCount The total number of images that were skipped 33 | */ 34 | - (void)imagePrefetcher:(SDWebImagePrefetcher *)imagePrefetcher didFinishWithTotalCount:(NSUInteger)totalCount skippedCount:(NSUInteger)skippedCount; 35 | 36 | @end 37 | 38 | typedef void(^SDWebImagePrefetcherProgressBlock)(NSUInteger noOfFinishedUrls, NSUInteger noOfTotalUrls); 39 | typedef void(^SDWebImagePrefetcherCompletionBlock)(NSUInteger noOfFinishedUrls, NSUInteger noOfSkippedUrls); 40 | 41 | /** 42 | * Prefetch some URLs in the cache for future use. Images are downloaded in low priority. 43 | */ 44 | @interface SDWebImagePrefetcher : NSObject 45 | 46 | /** 47 | * The web image manager 48 | */ 49 | @property (strong, nonatomic, readonly) SDWebImageManager *manager; 50 | 51 | /** 52 | * Maximum number of URLs to prefetch at the same time. Defaults to 3. 53 | */ 54 | @property (nonatomic, assign) NSUInteger maxConcurrentDownloads; 55 | 56 | /** 57 | * SDWebImageOptions for prefetcher. Defaults to SDWebImageLowPriority. 58 | */ 59 | @property (nonatomic, assign) SDWebImageOptions options; 60 | 61 | @property (weak, nonatomic) id delegate; 62 | 63 | /** 64 | * Return the global image prefetcher instance. 65 | */ 66 | + (SDWebImagePrefetcher *)sharedImagePrefetcher; 67 | 68 | /** 69 | * Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching, 70 | * currently one image is downloaded at a time, 71 | * and skips images for failed downloads and proceed to the next image in the list 72 | * 73 | * @param urls list of URLs to prefetch 74 | */ 75 | - (void)prefetchURLs:(NSArray *)urls; 76 | 77 | /** 78 | * Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching, 79 | * currently one image is downloaded at a time, 80 | * and skips images for failed downloads and proceed to the next image in the list 81 | * 82 | * @param urls list of URLs to prefetch 83 | * @param progressBlock block to be called when progress updates; 84 | * first parameter is the number of completed (successful or not) requests, 85 | * second parameter is the total number of images originally requested to be prefetched 86 | * @param completionBlock block to be called when prefetching is completed 87 | * first param is the number of completed (successful or not) requests, 88 | * second parameter is the number of skipped requests 89 | */ 90 | - (void)prefetchURLs:(NSArray *)urls progress:(SDWebImagePrefetcherProgressBlock)progressBlock completed:(SDWebImagePrefetcherCompletionBlock)completionBlock; 91 | 92 | /** 93 | * Remove and cancel queued list 94 | */ 95 | - (void)cancelPrefetching; 96 | 97 | 98 | @end 99 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImageView+HighlightedWebCache.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageCompat.h" 11 | #import "SDWebImageManager.h" 12 | 13 | /** 14 | * Integrates SDWebImage async downloading and caching of remote images with UIImageView for highlighted state. 15 | */ 16 | @interface UIImageView (HighlightedWebCache) 17 | 18 | /** 19 | * Set the imageView `highlightedImage` with an `url`. 20 | * 21 | * The download is asynchronous and cached. 22 | * 23 | * @param url The url for the image. 24 | */ 25 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url; 26 | 27 | /** 28 | * Set the imageView `highlightedImage` with an `url` and custom options. 29 | * 30 | * The download is asynchronous and cached. 31 | * 32 | * @param url The url for the image. 33 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 34 | */ 35 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options; 36 | 37 | /** 38 | * Set the imageView `highlightedImage` with an `url`. 39 | * 40 | * The download is asynchronous and cached. 41 | * 42 | * @param url The url for the image. 43 | * @param completedBlock A block called when operation has been completed. This block has no return value 44 | * and takes the requested UIImage as first parameter. In case of error the image parameter 45 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 46 | * indicating if the image was retrived from the local cache or from the network. 47 | * The fourth parameter is the original image url. 48 | */ 49 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock; 50 | 51 | /** 52 | * Set the imageView `highlightedImage` with an `url` and custom options. 53 | * 54 | * The download is asynchronous and cached. 55 | * 56 | * @param url The url for the image. 57 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 58 | * @param completedBlock A block called when operation has been completed. This block has no return value 59 | * and takes the requested UIImage as first parameter. In case of error the image parameter 60 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 61 | * indicating if the image was retrived from the local cache or from the network. 62 | * The fourth parameter is the original image url. 63 | */ 64 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 65 | 66 | /** 67 | * Set the imageView `highlightedImage` with an `url` and custom options. 68 | * 69 | * The download is asynchronous and cached. 70 | * 71 | * @param url The url for the image. 72 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 73 | * @param progressBlock A block called while image is downloading 74 | * @param completedBlock A block called when operation has been completed. This block has no return value 75 | * and takes the requested UIImage as first parameter. In case of error the image parameter 76 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 77 | * indicating if the image was retrived from the local cache or from the network. 78 | * The fourth parameter is the original image url. 79 | */ 80 | - (void)sd_setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 81 | 82 | /** 83 | * Cancel the current download 84 | */ 85 | - (void)sd_cancelCurrentHighlightedImageLoad; 86 | 87 | @end 88 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/MKAnnotationView+WebCache.h: -------------------------------------------------------------------------------- 1 | // 2 | // MKAnnotationView+WebCache.h 3 | // SDWebImage 4 | // 5 | // Created by Olivier Poitrey on 14/03/12. 6 | // Copyright (c) 2012 Dailymotion. All rights reserved. 7 | // 8 | 9 | #import "MapKit/MapKit.h" 10 | #import "SDWebImageManager.h" 11 | 12 | /** 13 | * Integrates SDWebImage async downloading and caching of remote images with MKAnnotationView. 14 | */ 15 | @interface MKAnnotationView (WebCache) 16 | 17 | /** 18 | * Get the current image URL. 19 | * 20 | * Note that because of the limitations of categories this property can get out of sync 21 | * if you use sd_setImage: directly. 22 | */ 23 | - (NSURL *)sd_imageURL; 24 | 25 | /** 26 | * Set the imageView `image` with an `url`. 27 | * 28 | * The download is asynchronous and cached. 29 | * 30 | * @param url The url for the image. 31 | */ 32 | - (void)sd_setImageWithURL:(NSURL *)url; 33 | 34 | /** 35 | * Set the imageView `image` with an `url` and a placeholder. 36 | * 37 | * The download is asynchronous and cached. 38 | * 39 | * @param url The url for the image. 40 | * @param placeholder The image to be set initially, until the image request finishes. 41 | * @see sd_setImageWithURL:placeholderImage:options: 42 | */ 43 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder; 44 | 45 | /** 46 | * Set the imageView `image` with an `url`, placeholder and custom options. 47 | * 48 | * The download is asynchronous and cached. 49 | * 50 | * @param url The url for the image. 51 | * @param placeholder The image to be set initially, until the image request finishes. 52 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 53 | */ 54 | 55 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 56 | 57 | /** 58 | * Set the imageView `image` with an `url`. 59 | * 60 | * The download is asynchronous and cached. 61 | * 62 | * @param url The url for the image. 63 | * @param completedBlock A block called when operation has been completed. This block has no return value 64 | * and takes the requested UIImage as first parameter. In case of error the image parameter 65 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 66 | * indicating if the image was retrived from the local cache or from the network. 67 | * The fourth parameter is the original image url. 68 | */ 69 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock; 70 | 71 | /** 72 | * Set the imageView `image` with an `url`, placeholder. 73 | * 74 | * The download is asynchronous and cached. 75 | * 76 | * @param url The url for the image. 77 | * @param placeholder The image to be set initially, until the image request finishes. 78 | * @param completedBlock A block called when operation has been completed. This block has no return value 79 | * and takes the requested UIImage as first parameter. In case of error the image parameter 80 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 81 | * indicating if the image was retrived from the local cache or from the network. 82 | * The fourth parameter is the original image url. 83 | */ 84 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 85 | 86 | /** 87 | * Set the imageView `image` with an `url`, placeholder and custom options. 88 | * 89 | * The download is asynchronous and cached. 90 | * 91 | * @param url The url for the image. 92 | * @param placeholder The image to be set initially, until the image request finishes. 93 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 94 | * @param completedBlock A block called when operation has been completed. This block has no return value 95 | * and takes the requested UIImage as first parameter. In case of error the image parameter 96 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 97 | * indicating if the image was retrived from the local cache or from the network. 98 | * The fourth parameter is the original image url. 99 | */ 100 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 101 | 102 | /** 103 | * Cancel the current download 104 | */ 105 | - (void)sd_cancelCurrentImageLoad; 106 | 107 | @end 108 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImage+GIF.m: -------------------------------------------------------------------------------- 1 | // 2 | // UIImage+GIF.m 3 | // LBGIFImage 4 | // 5 | // Created by Laurin Brandner on 06.01.12. 6 | // Copyright (c) 2012 __MyCompanyName__. All rights reserved. 7 | // 8 | 9 | #import "UIImage+GIF.h" 10 | #import 11 | 12 | @implementation UIImage (GIF) 13 | 14 | + (UIImage *)sd_animatedGIFWithData:(NSData *)data { 15 | if (!data) { 16 | return nil; 17 | } 18 | 19 | CGImageSourceRef source = CGImageSourceCreateWithData((__bridge CFDataRef)data, NULL); 20 | 21 | size_t count = CGImageSourceGetCount(source); 22 | 23 | UIImage *animatedImage; 24 | 25 | if (count <= 1) { 26 | animatedImage = [[UIImage alloc] initWithData:data]; 27 | } 28 | else { 29 | NSMutableArray *images = [NSMutableArray array]; 30 | 31 | NSTimeInterval duration = 0.0f; 32 | 33 | for (size_t i = 0; i < count; i++) { 34 | CGImageRef image = CGImageSourceCreateImageAtIndex(source, i, NULL); 35 | 36 | duration += [self sd_frameDurationAtIndex:i source:source]; 37 | 38 | [images addObject:[UIImage imageWithCGImage:image scale:[UIScreen mainScreen].scale orientation:UIImageOrientationUp]]; 39 | 40 | CGImageRelease(image); 41 | } 42 | 43 | if (!duration) { 44 | duration = (1.0f / 10.0f) * count; 45 | } 46 | 47 | animatedImage = [UIImage animatedImageWithImages:images duration:duration]; 48 | } 49 | 50 | CFRelease(source); 51 | 52 | return animatedImage; 53 | } 54 | 55 | + (float)sd_frameDurationAtIndex:(NSUInteger)index source:(CGImageSourceRef)source { 56 | float frameDuration = 0.1f; 57 | CFDictionaryRef cfFrameProperties = CGImageSourceCopyPropertiesAtIndex(source, index, nil); 58 | NSDictionary *frameProperties = (__bridge NSDictionary *)cfFrameProperties; 59 | NSDictionary *gifProperties = frameProperties[(NSString *)kCGImagePropertyGIFDictionary]; 60 | 61 | NSNumber *delayTimeUnclampedProp = gifProperties[(NSString *)kCGImagePropertyGIFUnclampedDelayTime]; 62 | if (delayTimeUnclampedProp) { 63 | frameDuration = [delayTimeUnclampedProp floatValue]; 64 | } 65 | else { 66 | 67 | NSNumber *delayTimeProp = gifProperties[(NSString *)kCGImagePropertyGIFDelayTime]; 68 | if (delayTimeProp) { 69 | frameDuration = [delayTimeProp floatValue]; 70 | } 71 | } 72 | 73 | // Many annoying ads specify a 0 duration to make an image flash as quickly as possible. 74 | // We follow Firefox's behavior and use a duration of 100 ms for any frames that specify 75 | // a duration of <= 10 ms. See and 76 | // for more information. 77 | 78 | if (frameDuration < 0.011f) { 79 | frameDuration = 0.100f; 80 | } 81 | 82 | CFRelease(cfFrameProperties); 83 | return frameDuration; 84 | } 85 | 86 | + (UIImage *)sd_animatedGIFNamed:(NSString *)name { 87 | CGFloat scale = [UIScreen mainScreen].scale; 88 | 89 | if (scale > 1.0f) { 90 | NSString *retinaPath = [[NSBundle mainBundle] pathForResource:[name stringByAppendingString:@"@2x"] ofType:@"gif"]; 91 | 92 | NSData *data = [NSData dataWithContentsOfFile:retinaPath]; 93 | 94 | if (data) { 95 | return [UIImage sd_animatedGIFWithData:data]; 96 | } 97 | 98 | NSString *path = [[NSBundle mainBundle] pathForResource:name ofType:@"gif"]; 99 | 100 | data = [NSData dataWithContentsOfFile:path]; 101 | 102 | if (data) { 103 | return [UIImage sd_animatedGIFWithData:data]; 104 | } 105 | 106 | return [UIImage imageNamed:name]; 107 | } 108 | else { 109 | NSString *path = [[NSBundle mainBundle] pathForResource:name ofType:@"gif"]; 110 | 111 | NSData *data = [NSData dataWithContentsOfFile:path]; 112 | 113 | if (data) { 114 | return [UIImage sd_animatedGIFWithData:data]; 115 | } 116 | 117 | return [UIImage imageNamed:name]; 118 | } 119 | } 120 | 121 | - (UIImage *)sd_animatedImageByScalingAndCroppingToSize:(CGSize)size { 122 | if (CGSizeEqualToSize(self.size, size) || CGSizeEqualToSize(size, CGSizeZero)) { 123 | return self; 124 | } 125 | 126 | CGSize scaledSize = size; 127 | CGPoint thumbnailPoint = CGPointZero; 128 | 129 | CGFloat widthFactor = size.width / self.size.width; 130 | CGFloat heightFactor = size.height / self.size.height; 131 | CGFloat scaleFactor = (widthFactor > heightFactor) ? widthFactor : heightFactor; 132 | scaledSize.width = self.size.width * scaleFactor; 133 | scaledSize.height = self.size.height * scaleFactor; 134 | 135 | if (widthFactor > heightFactor) { 136 | thumbnailPoint.y = (size.height - scaledSize.height) * 0.5; 137 | } 138 | else if (widthFactor < heightFactor) { 139 | thumbnailPoint.x = (size.width - scaledSize.width) * 0.5; 140 | } 141 | 142 | NSMutableArray *scaledImages = [NSMutableArray array]; 143 | 144 | UIGraphicsBeginImageContextWithOptions(size, NO, 0.0); 145 | 146 | for (UIImage *image in self.images) { 147 | [image drawInRect:CGRectMake(thumbnailPoint.x, thumbnailPoint.y, scaledSize.width, scaledSize.height)]; 148 | UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); 149 | 150 | [scaledImages addObject:newImage]; 151 | } 152 | 153 | UIGraphicsEndImageContext(); 154 | 155 | return [UIImage animatedImageWithImages:scaledImages duration:self.duration]; 156 | } 157 | 158 | @end 159 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImagePrefetcher.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImagePrefetcher.h" 10 | 11 | #if (!defined(DEBUG) && !defined (SD_VERBOSE)) || defined(SD_LOG_NONE) 12 | #define NSLog(...) 13 | #endif 14 | 15 | @interface SDWebImagePrefetcher () 16 | 17 | @property (strong, nonatomic) SDWebImageManager *manager; 18 | @property (strong, nonatomic) NSArray *prefetchURLs; 19 | @property (assign, nonatomic) NSUInteger requestedCount; 20 | @property (assign, nonatomic) NSUInteger skippedCount; 21 | @property (assign, nonatomic) NSUInteger finishedCount; 22 | @property (assign, nonatomic) NSTimeInterval startedTime; 23 | @property (copy, nonatomic) SDWebImagePrefetcherCompletionBlock completionBlock; 24 | @property (copy, nonatomic) SDWebImagePrefetcherProgressBlock progressBlock; 25 | 26 | @end 27 | 28 | @implementation SDWebImagePrefetcher 29 | 30 | + (SDWebImagePrefetcher *)sharedImagePrefetcher { 31 | static dispatch_once_t once; 32 | static id instance; 33 | dispatch_once(&once, ^{ 34 | instance = [self new]; 35 | }); 36 | return instance; 37 | } 38 | 39 | - (id)init { 40 | if ((self = [super init])) { 41 | _manager = [SDWebImageManager new]; 42 | _options = SDWebImageLowPriority; 43 | self.maxConcurrentDownloads = 3; 44 | } 45 | return self; 46 | } 47 | 48 | - (void)setMaxConcurrentDownloads:(NSUInteger)maxConcurrentDownloads { 49 | self.manager.imageDownloader.maxConcurrentDownloads = maxConcurrentDownloads; 50 | } 51 | 52 | - (NSUInteger)maxConcurrentDownloads { 53 | return self.manager.imageDownloader.maxConcurrentDownloads; 54 | } 55 | 56 | - (void)startPrefetchingAtIndex:(NSUInteger)index { 57 | if (index >= self.prefetchURLs.count) return; 58 | self.requestedCount++; 59 | [self.manager downloadImageWithURL:self.prefetchURLs[index] options:self.options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 60 | if (!finished) return; 61 | self.finishedCount++; 62 | 63 | if (image) { 64 | if (self.progressBlock) { 65 | self.progressBlock(self.finishedCount,[self.prefetchURLs count]); 66 | } 67 | NSLog(@"Prefetched %@ out of %@", @(self.finishedCount), @(self.prefetchURLs.count)); 68 | } 69 | else { 70 | if (self.progressBlock) { 71 | self.progressBlock(self.finishedCount,[self.prefetchURLs count]); 72 | } 73 | NSLog(@"Prefetched %@ out of %@ (Failed)", @(self.finishedCount), @(self.prefetchURLs.count)); 74 | 75 | // Add last failed 76 | self.skippedCount++; 77 | } 78 | if ([self.delegate respondsToSelector:@selector(imagePrefetcher:didPrefetchURL:finishedCount:totalCount:)]) { 79 | [self.delegate imagePrefetcher:self 80 | didPrefetchURL:self.prefetchURLs[index] 81 | finishedCount:self.finishedCount 82 | totalCount:self.prefetchURLs.count 83 | ]; 84 | } 85 | 86 | if (self.prefetchURLs.count > self.requestedCount) { 87 | dispatch_async(dispatch_get_main_queue(), ^{ 88 | [self startPrefetchingAtIndex:self.requestedCount]; 89 | }); 90 | } 91 | else if (self.finishedCount == self.requestedCount) { 92 | [self reportStatus]; 93 | if (self.completionBlock) { 94 | self.completionBlock(self.finishedCount, self.skippedCount); 95 | self.completionBlock = nil; 96 | } 97 | } 98 | }]; 99 | } 100 | 101 | - (void)reportStatus { 102 | NSUInteger total = [self.prefetchURLs count]; 103 | NSLog(@"Finished prefetching (%@ successful, %@ skipped, timeElasped %.2f)", @(total - self.skippedCount), @(self.skippedCount), CFAbsoluteTimeGetCurrent() - self.startedTime); 104 | if ([self.delegate respondsToSelector:@selector(imagePrefetcher:didFinishWithTotalCount:skippedCount:)]) { 105 | [self.delegate imagePrefetcher:self 106 | didFinishWithTotalCount:(total - self.skippedCount) 107 | skippedCount:self.skippedCount 108 | ]; 109 | } 110 | } 111 | 112 | - (void)prefetchURLs:(NSArray *)urls { 113 | [self prefetchURLs:urls progress:nil completed:nil]; 114 | } 115 | 116 | - (void)prefetchURLs:(NSArray *)urls progress:(SDWebImagePrefetcherProgressBlock)progressBlock completed:(SDWebImagePrefetcherCompletionBlock)completionBlock { 117 | [self cancelPrefetching]; // Prevent duplicate prefetch request 118 | self.startedTime = CFAbsoluteTimeGetCurrent(); 119 | self.prefetchURLs = urls; 120 | self.completionBlock = completionBlock; 121 | self.progressBlock = progressBlock; 122 | 123 | if(urls.count == 0){ 124 | if(completionBlock){ 125 | completionBlock(0,0); 126 | } 127 | }else{ 128 | // Starts prefetching from the very first image on the list with the max allowed concurrency 129 | NSUInteger listCount = self.prefetchURLs.count; 130 | for (NSUInteger i = 0; i < self.maxConcurrentDownloads && self.requestedCount < listCount; i++) { 131 | [self startPrefetchingAtIndex:i]; 132 | } 133 | } 134 | } 135 | 136 | - (void)cancelPrefetching { 137 | self.prefetchURLs = nil; 138 | self.skippedCount = 0; 139 | self.requestedCount = 0; 140 | self.finishedCount = 0; 141 | [self.manager cancelAll]; 142 | } 143 | 144 | @end 145 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImageView+WebCache.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "UIImageView+WebCache.h" 10 | #import "objc/runtime.h" 11 | #import "UIView+WebCacheOperation.h" 12 | 13 | static char imageURLKey; 14 | 15 | @implementation UIImageView (WebCache) 16 | 17 | - (void)sd_setImageWithURL:(NSURL *)url { 18 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:nil]; 19 | } 20 | 21 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder { 22 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:nil]; 23 | } 24 | 25 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 26 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:nil]; 27 | } 28 | 29 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock { 30 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:completedBlock]; 31 | } 32 | 33 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 34 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:completedBlock]; 35 | } 36 | 37 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 38 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:completedBlock]; 39 | } 40 | 41 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock { 42 | [self sd_cancelCurrentImageLoad]; 43 | objc_setAssociatedObject(self, &imageURLKey, url, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 44 | 45 | if (!(options & SDWebImageDelayPlaceholder)) { 46 | dispatch_main_async_safe(^{ 47 | self.image = placeholder; 48 | }); 49 | } 50 | 51 | if (url) { 52 | __weak UIImageView *wself = self; 53 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 54 | if (!wself) return; 55 | dispatch_main_sync_safe(^{ 56 | if (!wself) return; 57 | if (image) { 58 | wself.image = image; 59 | [wself setNeedsLayout]; 60 | } else { 61 | if ((options & SDWebImageDelayPlaceholder)) { 62 | wself.image = placeholder; 63 | [wself setNeedsLayout]; 64 | } 65 | } 66 | if (completedBlock && finished) { 67 | completedBlock(image, error, cacheType, url); 68 | } 69 | }); 70 | }]; 71 | [self sd_setImageLoadOperation:operation forKey:@"UIImageViewImageLoad"]; 72 | } else { 73 | dispatch_main_async_safe(^{ 74 | NSError *error = [NSError errorWithDomain:@"SDWebImageErrorDomain" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 75 | if (completedBlock) { 76 | completedBlock(nil, error, SDImageCacheTypeNone, url); 77 | } 78 | }); 79 | } 80 | } 81 | 82 | - (void)sd_setImageWithPreviousCachedImageWithURL:(NSURL *)url andPlaceholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock { 83 | NSString *key = [[SDWebImageManager sharedManager] cacheKeyForURL:url]; 84 | UIImage *lastPreviousCachedImage = [[SDImageCache sharedImageCache] imageFromDiskCacheForKey:key]; 85 | 86 | [self sd_setImageWithURL:url placeholderImage:lastPreviousCachedImage ?: placeholder options:options progress:progressBlock completed:completedBlock]; 87 | } 88 | 89 | - (NSURL *)sd_imageURL { 90 | return objc_getAssociatedObject(self, &imageURLKey); 91 | } 92 | 93 | - (void)sd_setAnimationImagesWithURLs:(NSArray *)arrayOfURLs { 94 | [self sd_cancelCurrentAnimationImagesLoad]; 95 | __weak UIImageView *wself = self; 96 | 97 | NSMutableArray *operationsArray = [[NSMutableArray alloc] init]; 98 | 99 | for (NSURL *logoImageURL in arrayOfURLs) { 100 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 101 | if (!wself) return; 102 | dispatch_main_sync_safe(^{ 103 | __strong UIImageView *sself = wself; 104 | [sself stopAnimating]; 105 | if (sself && image) { 106 | NSMutableArray *currentImages = [[sself animationImages] mutableCopy]; 107 | if (!currentImages) { 108 | currentImages = [[NSMutableArray alloc] init]; 109 | } 110 | [currentImages addObject:image]; 111 | 112 | sself.animationImages = currentImages; 113 | [sself setNeedsLayout]; 114 | } 115 | [sself startAnimating]; 116 | }); 117 | }]; 118 | [operationsArray addObject:operation]; 119 | } 120 | 121 | [self sd_setImageLoadOperation:[NSArray arrayWithArray:operationsArray] forKey:@"UIImageViewAnimationImages"]; 122 | } 123 | 124 | - (void)sd_cancelCurrentImageLoad { 125 | [self sd_cancelImageLoadOperationWithKey:@"UIImageViewImageLoad"]; 126 | } 127 | 128 | - (void)sd_cancelCurrentAnimationImagesLoad { 129 | [self sd_cancelImageLoadOperationWithKey:@"UIImageViewAnimationImages"]; 130 | } 131 | 132 | @end 133 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageDownloader.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageCompat.h" 11 | #import "SDWebImageOperation.h" 12 | 13 | typedef NS_OPTIONS(NSUInteger, SDWebImageDownloaderOptions) { 14 | SDWebImageDownloaderLowPriority = 1 << 0, 15 | SDWebImageDownloaderProgressiveDownload = 1 << 1, 16 | 17 | /** 18 | * By default, request prevent the of NSURLCache. With this flag, NSURLCache 19 | * is used with default policies. 20 | */ 21 | SDWebImageDownloaderUseNSURLCache = 1 << 2, 22 | 23 | /** 24 | * Call completion block with nil image/imageData if the image was read from NSURLCache 25 | * (to be combined with `SDWebImageDownloaderUseNSURLCache`). 26 | */ 27 | 28 | SDWebImageDownloaderIgnoreCachedResponse = 1 << 3, 29 | /** 30 | * In iOS 4+, continue the download of the image if the app goes to background. This is achieved by asking the system for 31 | * extra time in background to let the request finish. If the background task expires the operation will be cancelled. 32 | */ 33 | 34 | SDWebImageDownloaderContinueInBackground = 1 << 4, 35 | 36 | /** 37 | * Handles cookies stored in NSHTTPCookieStore by setting 38 | * NSMutableURLRequest.HTTPShouldHandleCookies = YES; 39 | */ 40 | SDWebImageDownloaderHandleCookies = 1 << 5, 41 | 42 | /** 43 | * Enable to allow untrusted SSL ceriticates. 44 | * Useful for testing purposes. Use with caution in production. 45 | */ 46 | SDWebImageDownloaderAllowInvalidSSLCertificates = 1 << 6, 47 | 48 | /** 49 | * Put the image in the high priority queue. 50 | */ 51 | SDWebImageDownloaderHighPriority = 1 << 7, 52 | 53 | 54 | }; 55 | 56 | typedef NS_ENUM(NSInteger, SDWebImageDownloaderExecutionOrder) { 57 | /** 58 | * Default value. All download operations will execute in queue style (first-in-first-out). 59 | */ 60 | SDWebImageDownloaderFIFOExecutionOrder, 61 | 62 | /** 63 | * All download operations will execute in stack style (last-in-first-out). 64 | */ 65 | SDWebImageDownloaderLIFOExecutionOrder 66 | }; 67 | 68 | extern NSString *const SDWebImageDownloadStartNotification; 69 | extern NSString *const SDWebImageDownloadStopNotification; 70 | 71 | typedef void(^SDWebImageDownloaderProgressBlock)(NSInteger receivedSize, NSInteger expectedSize); 72 | 73 | typedef void(^SDWebImageDownloaderCompletedBlock)(UIImage *image, NSData *data, NSError *error, BOOL finished); 74 | 75 | typedef NSDictionary *(^SDWebImageDownloaderHeadersFilterBlock)(NSURL *url, NSDictionary *headers); 76 | 77 | /** 78 | * Asynchronous downloader dedicated and optimized for image loading. 79 | */ 80 | @interface SDWebImageDownloader : NSObject 81 | 82 | @property (assign, nonatomic) NSInteger maxConcurrentDownloads; 83 | 84 | /** 85 | * Shows the current amount of downloads that still need to be downloaded 86 | */ 87 | 88 | @property (readonly, nonatomic) NSUInteger currentDownloadCount; 89 | 90 | 91 | /** 92 | * The timeout value (in seconds) for the download operation. Default: 15.0. 93 | */ 94 | @property (assign, nonatomic) NSTimeInterval downloadTimeout; 95 | 96 | 97 | /** 98 | * Changes download operations execution order. Default value is `SDWebImageDownloaderFIFOExecutionOrder`. 99 | */ 100 | @property (assign, nonatomic) SDWebImageDownloaderExecutionOrder executionOrder; 101 | 102 | /** 103 | * Singleton method, returns the shared instance 104 | * 105 | * @return global shared instance of downloader class 106 | */ 107 | + (SDWebImageDownloader *)sharedDownloader; 108 | 109 | /** 110 | * Set username 111 | */ 112 | @property (strong, nonatomic) NSString *username; 113 | 114 | /** 115 | * Set password 116 | */ 117 | @property (strong, nonatomic) NSString *password; 118 | 119 | /** 120 | * Set filter to pick headers for downloading image HTTP request. 121 | * 122 | * This block will be invoked for each downloading image request, returned 123 | * NSDictionary will be used as headers in corresponding HTTP request. 124 | */ 125 | @property (nonatomic, copy) SDWebImageDownloaderHeadersFilterBlock headersFilter; 126 | 127 | /** 128 | * Set a value for a HTTP header to be appended to each download HTTP request. 129 | * 130 | * @param value The value for the header field. Use `nil` value to remove the header. 131 | * @param field The name of the header field to set. 132 | */ 133 | - (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field; 134 | 135 | /** 136 | * Returns the value of the specified HTTP header field. 137 | * 138 | * @return The value associated with the header field field, or `nil` if there is no corresponding header field. 139 | */ 140 | - (NSString *)valueForHTTPHeaderField:(NSString *)field; 141 | 142 | /** 143 | * Sets a subclass of `SDWebImageDownloaderOperation` as the default 144 | * `NSOperation` to be used each time SDWebImage constructs a request 145 | * operation to download an image. 146 | * 147 | * @param operationClass The subclass of `SDWebImageDownloaderOperation` to set 148 | * as default. Passing `nil` will revert to `SDWebImageDownloaderOperation`. 149 | */ 150 | - (void)setOperationClass:(Class)operationClass; 151 | 152 | /** 153 | * Creates a SDWebImageDownloader async downloader instance with a given URL 154 | * 155 | * The delegate will be informed when the image is finish downloaded or an error has happen. 156 | * 157 | * @see SDWebImageDownloaderDelegate 158 | * 159 | * @param url The URL to the image to download 160 | * @param options The options to be used for this download 161 | * @param progressBlock A block called repeatedly while the image is downloading 162 | * @param completedBlock A block called once the download is completed. 163 | * If the download succeeded, the image parameter is set, in case of error, 164 | * error parameter is set with the error. The last parameter is always YES 165 | * if SDWebImageDownloaderProgressiveDownload isn't use. With the 166 | * SDWebImageDownloaderProgressiveDownload option, this block is called 167 | * repeatedly with the partial image object and the finished argument set to NO 168 | * before to be called a last time with the full image and finished argument 169 | * set to YES. In case of error, the finished argument is always YES. 170 | * 171 | * @return A cancellable SDWebImageOperation 172 | */ 173 | - (id )downloadImageWithURL:(NSURL *)url 174 | options:(SDWebImageDownloaderOptions)options 175 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 176 | completed:(SDWebImageDownloaderCompletedBlock)completedBlock; 177 | 178 | /** 179 | * Sets the download queue suspension state 180 | */ 181 | - (void)setSuspended:(BOOL)suspended; 182 | 183 | @end 184 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIButton+WebCache.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "UIButton+WebCache.h" 10 | #import "objc/runtime.h" 11 | #import "UIView+WebCacheOperation.h" 12 | 13 | static char imageURLStorageKey; 14 | 15 | @implementation UIButton (WebCache) 16 | 17 | - (NSURL *)sd_currentImageURL { 18 | NSURL *url = self.imageURLStorage[@(self.state)]; 19 | 20 | if (!url) { 21 | url = self.imageURLStorage[@(UIControlStateNormal)]; 22 | } 23 | 24 | return url; 25 | } 26 | 27 | - (NSURL *)sd_imageURLForState:(UIControlState)state { 28 | return self.imageURLStorage[@(state)]; 29 | } 30 | 31 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state { 32 | [self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil]; 33 | } 34 | 35 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder { 36 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil]; 37 | } 38 | 39 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 40 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil]; 41 | } 42 | 43 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletionBlock)completedBlock { 44 | [self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock]; 45 | } 46 | 47 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 48 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock]; 49 | } 50 | 51 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 52 | 53 | [self setImage:placeholder forState:state]; 54 | [self sd_cancelImageLoadForState:state]; 55 | 56 | if (!url) { 57 | [self.imageURLStorage removeObjectForKey:@(state)]; 58 | 59 | dispatch_main_async_safe(^{ 60 | NSError *error = [NSError errorWithDomain:@"SDWebImageErrorDomain" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 61 | if (completedBlock) { 62 | completedBlock(nil, error, SDImageCacheTypeNone, url); 63 | } 64 | }); 65 | 66 | return; 67 | } 68 | 69 | self.imageURLStorage[@(state)] = url; 70 | 71 | __weak UIButton *wself = self; 72 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 73 | if (!wself) return; 74 | dispatch_main_sync_safe(^{ 75 | __strong UIButton *sself = wself; 76 | if (!sself) return; 77 | if (image) { 78 | [sself setImage:image forState:state]; 79 | } 80 | if (completedBlock && finished) { 81 | completedBlock(image, error, cacheType, url); 82 | } 83 | }); 84 | }]; 85 | [self sd_setImageLoadOperation:operation forState:state]; 86 | } 87 | 88 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state { 89 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil]; 90 | } 91 | 92 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder { 93 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil]; 94 | } 95 | 96 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 97 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil]; 98 | } 99 | 100 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletionBlock)completedBlock { 101 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock]; 102 | } 103 | 104 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 105 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock]; 106 | } 107 | 108 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 109 | [self sd_cancelImageLoadForState:state]; 110 | 111 | [self setBackgroundImage:placeholder forState:state]; 112 | 113 | if (url) { 114 | __weak UIButton *wself = self; 115 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 116 | if (!wself) return; 117 | dispatch_main_sync_safe(^{ 118 | __strong UIButton *sself = wself; 119 | if (!sself) return; 120 | if (image) { 121 | [sself setBackgroundImage:image forState:state]; 122 | } 123 | if (completedBlock && finished) { 124 | completedBlock(image, error, cacheType, url); 125 | } 126 | }); 127 | }]; 128 | [self sd_setBackgroundImageLoadOperation:operation forState:state]; 129 | } else { 130 | dispatch_main_async_safe(^{ 131 | NSError *error = [NSError errorWithDomain:@"SDWebImageErrorDomain" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 132 | if (completedBlock) { 133 | completedBlock(nil, error, SDImageCacheTypeNone, url); 134 | } 135 | }); 136 | } 137 | } 138 | 139 | - (void)sd_setImageLoadOperation:(id)operation forState:(UIControlState)state { 140 | [self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]]; 141 | } 142 | 143 | - (void)sd_cancelImageLoadForState:(UIControlState)state { 144 | [self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]]; 145 | } 146 | 147 | - (void)sd_setBackgroundImageLoadOperation:(id)operation forState:(UIControlState)state { 148 | [self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]]; 149 | } 150 | 151 | - (void)sd_cancelBackgroundImageLoadForState:(UIControlState)state { 152 | [self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]]; 153 | } 154 | 155 | - (NSMutableDictionary *)imageURLStorage { 156 | NSMutableDictionary *storage = objc_getAssociatedObject(self, &imageURLStorageKey); 157 | if (!storage) 158 | { 159 | storage = [NSMutableDictionary dictionary]; 160 | objc_setAssociatedObject(self, &imageURLStorageKey, storage, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 161 | } 162 | 163 | return storage; 164 | } 165 | 166 | @end 167 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDImageCache.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import 10 | #import "SDWebImageCompat.h" 11 | 12 | typedef NS_ENUM(NSInteger, SDImageCacheType) { 13 | /** 14 | * The image wasn't available the SDWebImage caches, but was downloaded from the web. 15 | */ 16 | SDImageCacheTypeNone, 17 | /** 18 | * The image was obtained from the disk cache. 19 | */ 20 | SDImageCacheTypeDisk, 21 | /** 22 | * The image was obtained from the memory cache. 23 | */ 24 | SDImageCacheTypeMemory 25 | }; 26 | 27 | typedef void(^SDWebImageQueryCompletedBlock)(UIImage *image, SDImageCacheType cacheType); 28 | 29 | typedef void(^SDWebImageCheckCacheCompletionBlock)(BOOL isInCache); 30 | 31 | typedef void(^SDWebImageCalculateSizeBlock)(NSUInteger fileCount, NSUInteger totalSize); 32 | 33 | /** 34 | * SDImageCache maintains a memory cache and an optional disk cache. Disk cache write operations are performed 35 | * asynchronous so it doesn’t add unnecessary latency to the UI. 36 | */ 37 | @interface SDImageCache : NSObject 38 | 39 | /** 40 | * The maximum "total cost" of the in-memory image cache. The cost function is the number of pixels held in memory. 41 | */ 42 | @property (assign, nonatomic) NSUInteger maxMemoryCost; 43 | 44 | /** 45 | * The maximum length of time to keep an image in the cache, in seconds 46 | */ 47 | @property (assign, nonatomic) NSInteger maxCacheAge; 48 | 49 | /** 50 | * The maximum size of the cache, in bytes. 51 | */ 52 | @property (assign, nonatomic) NSUInteger maxCacheSize; 53 | 54 | /** 55 | * Returns global shared cache instance 56 | * 57 | * @return SDImageCache global instance 58 | */ 59 | + (SDImageCache *)sharedImageCache; 60 | 61 | /** 62 | * Init a new cache store with a specific namespace 63 | * 64 | * @param ns The namespace to use for this cache store 65 | */ 66 | - (id)initWithNamespace:(NSString *)ns; 67 | 68 | /** 69 | * Add a read-only cache path to search for images pre-cached by SDImageCache 70 | * Useful if you want to bundle pre-loaded images with your app 71 | * 72 | * @param path The path to use for this read-only cache path 73 | */ 74 | - (void)addReadOnlyCachePath:(NSString *)path; 75 | 76 | /** 77 | * Store an image into memory and disk cache at the given key. 78 | * 79 | * @param image The image to store 80 | * @param key The unique image cache key, usually it's image absolute URL 81 | */ 82 | - (void)storeImage:(UIImage *)image forKey:(NSString *)key; 83 | 84 | /** 85 | * Store an image into memory and optionally disk cache at the given key. 86 | * 87 | * @param image The image to store 88 | * @param key The unique image cache key, usually it's image absolute URL 89 | * @param toDisk Store the image to disk cache if YES 90 | */ 91 | - (void)storeImage:(UIImage *)image forKey:(NSString *)key toDisk:(BOOL)toDisk; 92 | 93 | /** 94 | * Store an image into memory and optionally disk cache at the given key. 95 | * 96 | * @param image The image to store 97 | * @param recalculate BOOL indicates if imageData can be used or a new data should be constructed from the UIImage 98 | * @param imageData The image data as returned by the server, this representation will be used for disk storage 99 | * instead of converting the given image object into a storable/compressed image format in order 100 | * to save quality and CPU 101 | * @param key The unique image cache key, usually it's image absolute URL 102 | * @param toDisk Store the image to disk cache if YES 103 | */ 104 | - (void)storeImage:(UIImage *)image recalculateFromImage:(BOOL)recalculate imageData:(NSData *)imageData forKey:(NSString *)key toDisk:(BOOL)toDisk; 105 | 106 | /** 107 | * Query the disk cache asynchronously. 108 | * 109 | * @param key The unique key used to store the wanted image 110 | */ 111 | - (NSOperation *)queryDiskCacheForKey:(NSString *)key done:(SDWebImageQueryCompletedBlock)doneBlock; 112 | 113 | /** 114 | * Query the memory cache synchronously. 115 | * 116 | * @param key The unique key used to store the wanted image 117 | */ 118 | - (UIImage *)imageFromMemoryCacheForKey:(NSString *)key; 119 | 120 | /** 121 | * Query the disk cache synchronously after checking the memory cache. 122 | * 123 | * @param key The unique key used to store the wanted image 124 | */ 125 | - (UIImage *)imageFromDiskCacheForKey:(NSString *)key; 126 | 127 | /** 128 | * Remove the image from memory and disk cache synchronously 129 | * 130 | * @param key The unique image cache key 131 | */ 132 | - (void)removeImageForKey:(NSString *)key; 133 | 134 | 135 | /** 136 | * Remove the image from memory and disk cache synchronously 137 | * 138 | * @param key The unique image cache key 139 | * @param completion An block that should be executed after the image has been removed (optional) 140 | */ 141 | - (void)removeImageForKey:(NSString *)key withCompletion:(SDWebImageNoParamsBlock)completion; 142 | 143 | /** 144 | * Remove the image from memory and optionally disk cache synchronously 145 | * 146 | * @param key The unique image cache key 147 | * @param fromDisk Also remove cache entry from disk if YES 148 | */ 149 | - (void)removeImageForKey:(NSString *)key fromDisk:(BOOL)fromDisk; 150 | 151 | /** 152 | * Remove the image from memory and optionally disk cache synchronously 153 | * 154 | * @param key The unique image cache key 155 | * @param fromDisk Also remove cache entry from disk if YES 156 | * @param completion An block that should be executed after the image has been removed (optional) 157 | */ 158 | - (void)removeImageForKey:(NSString *)key fromDisk:(BOOL)fromDisk withCompletion:(SDWebImageNoParamsBlock)completion; 159 | 160 | /** 161 | * Clear all memory cached images 162 | */ 163 | - (void)clearMemory; 164 | 165 | /** 166 | * Clear all disk cached images. Non-blocking method - returns immediately. 167 | * @param completion An block that should be executed after cache expiration completes (optional) 168 | */ 169 | - (void)clearDiskOnCompletion:(SDWebImageNoParamsBlock)completion; 170 | 171 | /** 172 | * Clear all disk cached images 173 | * @see clearDiskOnCompletion: 174 | */ 175 | - (void)clearDisk; 176 | 177 | /** 178 | * Remove all expired cached image from disk. Non-blocking method - returns immediately. 179 | * @param completionBlock An block that should be executed after cache expiration completes (optional) 180 | */ 181 | - (void)cleanDiskWithCompletionBlock:(SDWebImageNoParamsBlock)completionBlock; 182 | 183 | /** 184 | * Remove all expired cached image from disk 185 | * @see cleanDiskWithCompletionBlock: 186 | */ 187 | - (void)cleanDisk; 188 | 189 | /** 190 | * Get the size used by the disk cache 191 | */ 192 | - (NSUInteger)getSize; 193 | 194 | /** 195 | * Get the number of images in the disk cache 196 | */ 197 | - (NSUInteger)getDiskCount; 198 | 199 | /** 200 | * Asynchronously calculate the disk cache's size. 201 | */ 202 | - (void)calculateSizeWithCompletionBlock:(SDWebImageCalculateSizeBlock)completionBlock; 203 | 204 | /** 205 | * Async check if image exists in disk cache already (does not load the image) 206 | * 207 | * @param key the key describing the url 208 | * @param completionBlock the block to be executed when the check is done. 209 | * @note the completion block will be always executed on the main queue 210 | */ 211 | - (void)diskImageExistsWithKey:(NSString *)key completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 212 | 213 | /** 214 | * Check if image exists in disk cache already (does not load the image) 215 | * 216 | * @param key the key describing the url 217 | * 218 | * @return YES if an image exists for the given key 219 | */ 220 | - (BOOL)diskImageExistsWithKey:(NSString *)key; 221 | 222 | /** 223 | * Get the cache path for a certain key (needs the cache path root folder) 224 | * 225 | * @param key the key (can be obtained from url using cacheKeyForURL) 226 | * @param path the cach path root folder 227 | * 228 | * @return the cache path 229 | */ 230 | - (NSString *)cachePathForKey:(NSString *)key inPath:(NSString *)path; 231 | 232 | /** 233 | * Get the default cache path for a certain key 234 | * 235 | * @param key the key (can be obtained from url using cacheKeyForURL) 236 | * 237 | * @return the default cache path 238 | */ 239 | - (NSString *)defaultCachePathForKey:(NSString *)key; 240 | 241 | @end 242 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIImageView+WebCache.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageCompat.h" 10 | #import "SDWebImageManager.h" 11 | 12 | /** 13 | * Integrates SDWebImage async downloading and caching of remote images with UIImageView. 14 | * 15 | * Usage with a UITableViewCell sub-class: 16 | * 17 | * @code 18 | 19 | #import 20 | 21 | ... 22 | 23 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 24 | { 25 | static NSString *MyIdentifier = @"MyIdentifier"; 26 | 27 | UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; 28 | 29 | if (cell == nil) { 30 | cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier] 31 | autorelease]; 32 | } 33 | 34 | // Here we use the provided sd_setImageWithURL: method to load the web image 35 | // Ensure you use a placeholder image otherwise cells will be initialized with no image 36 | [cell.imageView sd_setImageWithURL:[NSURL URLWithString:@"http://example.com/image.jpg"] 37 | placeholderImage:[UIImage imageNamed:@"placeholder"]]; 38 | 39 | cell.textLabel.text = @"My Text"; 40 | return cell; 41 | } 42 | 43 | * @endcode 44 | */ 45 | @interface UIImageView (WebCache) 46 | 47 | /** 48 | * Get the current image URL. 49 | * 50 | * Note that because of the limitations of categories this property can get out of sync 51 | * if you use sd_setImage: directly. 52 | */ 53 | - (NSURL *)sd_imageURL; 54 | 55 | /** 56 | * Set the imageView `image` with an `url`. 57 | * 58 | * The download is asynchronous and cached. 59 | * 60 | * @param url The url for the image. 61 | */ 62 | - (void)sd_setImageWithURL:(NSURL *)url; 63 | 64 | /** 65 | * Set the imageView `image` with an `url` and a placeholder. 66 | * 67 | * The download is asynchronous and cached. 68 | * 69 | * @param url The url for the image. 70 | * @param placeholder The image to be set initially, until the image request finishes. 71 | * @see sd_setImageWithURL:placeholderImage:options: 72 | */ 73 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder; 74 | 75 | /** 76 | * Set the imageView `image` with an `url`, placeholder and custom options. 77 | * 78 | * The download is asynchronous and cached. 79 | * 80 | * @param url The url for the image. 81 | * @param placeholder The image to be set initially, until the image request finishes. 82 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 83 | */ 84 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 85 | 86 | /** 87 | * Set the imageView `image` with an `url`. 88 | * 89 | * The download is asynchronous and cached. 90 | * 91 | * @param url The url for the image. 92 | * @param completedBlock A block called when operation has been completed. This block has no return value 93 | * and takes the requested UIImage as first parameter. In case of error the image parameter 94 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 95 | * indicating if the image was retrived from the local cache or from the network. 96 | * The fourth parameter is the original image url. 97 | */ 98 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock; 99 | 100 | /** 101 | * Set the imageView `image` with an `url`, placeholder. 102 | * 103 | * The download is asynchronous and cached. 104 | * 105 | * @param url The url for the image. 106 | * @param placeholder The image to be set initially, until the image request finishes. 107 | * @param completedBlock A block called when operation has been completed. This block has no return value 108 | * and takes the requested UIImage as first parameter. In case of error the image parameter 109 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 110 | * indicating if the image was retrived from the local cache or from the network. 111 | * The fourth parameter is the original image url. 112 | */ 113 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 114 | 115 | /** 116 | * Set the imageView `image` with an `url`, placeholder and custom options. 117 | * 118 | * The download is asynchronous and cached. 119 | * 120 | * @param url The url for the image. 121 | * @param placeholder The image to be set initially, until the image request finishes. 122 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 123 | * @param completedBlock A block called when operation has been completed. This block has no return value 124 | * and takes the requested UIImage as first parameter. In case of error the image parameter 125 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 126 | * indicating if the image was retrived from the local cache or from the network. 127 | * The fourth parameter is the original image url. 128 | */ 129 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 130 | 131 | /** 132 | * Set the imageView `image` with an `url`, placeholder and custom options. 133 | * 134 | * The download is asynchronous and cached. 135 | * 136 | * @param url The url for the image. 137 | * @param placeholder The image to be set initially, until the image request finishes. 138 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 139 | * @param progressBlock A block called while image is downloading 140 | * @param completedBlock A block called when operation has been completed. This block has no return value 141 | * and takes the requested UIImage as first parameter. In case of error the image parameter 142 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 143 | * indicating if the image was retrived from the local cache or from the network. 144 | * The fourth parameter is the original image url. 145 | */ 146 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 147 | 148 | /** 149 | * Set the imageView `image` with an `url` and a optionaly placeholder image. 150 | * 151 | * The download is asynchronous and cached. 152 | * 153 | * @param url The url for the image. 154 | * @param placeholder The image to be set initially, until the image request finishes. 155 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 156 | * @param progressBlock A block called while image is downloading 157 | * @param completedBlock A block called when operation has been completed. This block has no return value 158 | * and takes the requested UIImage as first parameter. In case of error the image parameter 159 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 160 | * indicating if the image was retrived from the local cache or from the network. 161 | * The fourth parameter is the original image url. 162 | */ 163 | - (void)sd_setImageWithPreviousCachedImageWithURL:(NSURL *)url andPlaceholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 164 | 165 | /** 166 | * Download an array of images and starts them in an animation loop 167 | * 168 | * @param arrayOfURLs An array of NSURL 169 | */ 170 | - (void)sd_setAnimationImagesWithURLs:(NSArray *)arrayOfURLs; 171 | 172 | /** 173 | * Cancel the current download 174 | */ 175 | - (void)sd_cancelCurrentImageLoad; 176 | 177 | - (void)sd_cancelCurrentAnimationImagesLoad; 178 | 179 | @end 180 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/NSString+Additions.m: -------------------------------------------------------------------------------- 1 | // 2 | // NSString+Additions.m 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-15. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "NSString+Additions.h" 10 | #import 11 | 12 | @implementation NSString (Additions) 13 | 14 | #pragma mark - java api 15 | 16 | - (NSUInteger) compareTo: (NSString*) comp { 17 | NSComparisonResult result = [self compare:comp]; 18 | if (result == NSOrderedSame) { 19 | return 0; 20 | } 21 | return result == NSOrderedAscending ? -1 : 1; 22 | } 23 | 24 | - (NSUInteger) compareToIgnoreCase: (NSString*) comp { 25 | return [[self lowercaseString] compareTo:[comp lowercaseString]]; 26 | } 27 | 28 | - (bool) contains: (NSString*) substring { 29 | NSRange range = [self rangeOfString:substring]; 30 | return range.location != NSNotFound; 31 | } 32 | 33 | - (bool) endsWith: (NSString*) substring { 34 | NSRange range = [self rangeOfString:substring]; 35 | return range.location == [self length] - [substring length]; 36 | } 37 | 38 | - (bool) startsWith: (NSString*) substring { 39 | NSRange range = [self rangeOfString:substring]; 40 | return range.location == 0; 41 | } 42 | 43 | - (NSUInteger) indexOf: (NSString*) substring { 44 | NSRange range = [self rangeOfString:substring options:NSCaseInsensitiveSearch]; 45 | return range.location == NSNotFound ? -1 : range.location; 46 | } 47 | 48 | - (NSUInteger) indexOf:(NSString *)substring startingFrom: (NSUInteger) index { 49 | NSString* test = [self substringFromIndex:index]; 50 | return index+[test indexOf:substring]; 51 | } 52 | 53 | - (NSUInteger) lastIndexOf: (NSString*) substring { 54 | NSRange range = [self rangeOfString:substring options:NSBackwardsSearch]; 55 | return range.location == NSNotFound ? -1 : range.location; 56 | } 57 | 58 | - (NSUInteger) lastIndexOf:(NSString *)substring startingFrom: (NSUInteger) index { 59 | NSString* test = [self substringFromIndex:index]; 60 | return [test lastIndexOf:substring]; 61 | } 62 | 63 | - (NSString*) substringFromIndex:(NSUInteger)from toIndex: (NSUInteger) to { 64 | NSRange range; 65 | range.location = from; 66 | range.length = to - from; 67 | return [self substringWithRange: range]; 68 | } 69 | 70 | - (NSString*) trim { 71 | 72 | return [self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; 73 | } 74 | 75 | - (NSArray*) split: (NSString*) token { 76 | return [self split:token limit:0]; 77 | } 78 | 79 | - (NSArray*) split: (NSString*) token limit: (NSUInteger) maxResults { 80 | NSMutableArray* result = [NSMutableArray arrayWithCapacity: 8]; 81 | NSString* buffer = self; 82 | while ([buffer contains:token]) { 83 | if (maxResults > 0 && [result count] == maxResults - 1) { 84 | break; 85 | } 86 | NSUInteger matchIndex = [buffer indexOf:token]; 87 | NSString* nextPart = [buffer substringFromIndex:0 toIndex:matchIndex]; 88 | buffer = [buffer substringFromIndex:matchIndex + [token length]]; 89 | [result addObject:nextPart]; 90 | } 91 | if ([buffer length] > 0) { 92 | [result addObject:buffer]; 93 | } 94 | 95 | return result; 96 | } 97 | 98 | - (NSString*) replace: (NSString*) target withString: (NSString*) replacement { 99 | return [self stringByReplacingOccurrencesOfString:target withString:replacement]; 100 | } 101 | 102 | - (CGSize)sizeWithConstrainedToWidth:(float)width fromFont:(UIFont *)font1 lineSpace:(float)lineSpace{ 103 | return [self sizeWithConstrainedToSize:CGSizeMake(width, CGFLOAT_MAX) fromFont:font1 lineSpace:lineSpace]; 104 | } 105 | 106 | - (CGSize)sizeWithConstrainedToSize:(CGSize)size fromFont:(UIFont *)font1 lineSpace:(float)lineSpace{ 107 | CGFloat minimumLineHeight = font1.pointSize,maximumLineHeight = minimumLineHeight, linespace = lineSpace; 108 | CTFontRef font = CTFontCreateWithName((__bridge CFStringRef)font1.fontName,font1.pointSize,NULL); 109 | CTLineBreakMode lineBreakMode = kCTLineBreakByWordWrapping; 110 | //Apply paragraph settings 111 | CTTextAlignment alignment = kCTLeftTextAlignment; 112 | CTParagraphStyleRef style = CTParagraphStyleCreate((CTParagraphStyleSetting[6]){ 113 | {kCTParagraphStyleSpecifierAlignment, sizeof(alignment), &alignment}, 114 | {kCTParagraphStyleSpecifierMinimumLineHeight,sizeof(minimumLineHeight),&minimumLineHeight}, 115 | {kCTParagraphStyleSpecifierMaximumLineHeight,sizeof(maximumLineHeight),&maximumLineHeight}, 116 | {kCTParagraphStyleSpecifierMaximumLineSpacing, sizeof(linespace), &linespace}, 117 | {kCTParagraphStyleSpecifierMinimumLineSpacing, sizeof(linespace), &linespace}, 118 | {kCTParagraphStyleSpecifierLineBreakMode,sizeof(CTLineBreakMode),&lineBreakMode} 119 | },6); 120 | NSDictionary* attributes = [NSDictionary dictionaryWithObjectsAndKeys:(__bridge id)font,(NSString*)kCTFontAttributeName,(__bridge id)style,(NSString*)kCTParagraphStyleAttributeName,nil]; 121 | NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:self attributes:attributes]; 122 | // [self clearEmoji:string start:0 font:font1]; 123 | CFAttributedStringRef attributedString = (__bridge CFAttributedStringRef)string; 124 | CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((CFAttributedStringRef)attributedString); 125 | CGSize result = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, CFRangeMake(0, [string length]), NULL, size, NULL); 126 | CFRelease(framesetter); 127 | CFRelease(font); 128 | CFRelease(style); 129 | string = nil; 130 | attributes = nil; 131 | return result; 132 | } 133 | 134 | - (void)drawInContext:(CGContextRef)context withPosition:(CGPoint)p andFont:(UIFont *)font andTextColor:(UIColor *)color andHeight:(float)height andWidth:(float)width{ 135 | CGSize size = CGSizeMake(width, font.pointSize+10); 136 | CGContextSetTextMatrix(context,CGAffineTransformIdentity); 137 | CGContextTranslateCTM(context,0,height); 138 | CGContextScaleCTM(context,1.0,-1.0); 139 | 140 | //Determine default text color 141 | UIColor* textColor = color; 142 | //Set line height, font, color and break mode 143 | CTFontRef font1 = CTFontCreateWithName((__bridge CFStringRef)font.fontName, font.pointSize,NULL); 144 | //Apply paragraph settings 145 | CGFloat minimumLineHeight = font.pointSize,maximumLineHeight = minimumLineHeight+10, linespace = 5; 146 | CTLineBreakMode lineBreakMode = kCTLineBreakByTruncatingTail; 147 | CTTextAlignment alignment = kCTLeftTextAlignment; 148 | //Apply paragraph settings 149 | CTParagraphStyleRef style = CTParagraphStyleCreate((CTParagraphStyleSetting[6]){ 150 | {kCTParagraphStyleSpecifierAlignment, sizeof(alignment), &alignment}, 151 | {kCTParagraphStyleSpecifierMinimumLineHeight,sizeof(minimumLineHeight),&minimumLineHeight}, 152 | {kCTParagraphStyleSpecifierMaximumLineHeight,sizeof(maximumLineHeight),&maximumLineHeight}, 153 | {kCTParagraphStyleSpecifierMaximumLineSpacing, sizeof(linespace), &linespace}, 154 | {kCTParagraphStyleSpecifierMinimumLineSpacing, sizeof(linespace), &linespace}, 155 | {kCTParagraphStyleSpecifierLineBreakMode,sizeof(CTLineBreakMode),&lineBreakMode} 156 | },6); 157 | 158 | NSDictionary* attributes = [NSDictionary dictionaryWithObjectsAndKeys:(__bridge id)font1,(NSString*)kCTFontAttributeName, 159 | textColor.CGColor,kCTForegroundColorAttributeName, 160 | style,kCTParagraphStyleAttributeName, 161 | nil]; 162 | //Create path to work with a frame with applied margins 163 | CGMutablePathRef path = CGPathCreateMutable(); 164 | CGPathAddRect(path,NULL,CGRectMake(p.x, height-p.y-size.height,(size.width),(size.height))); 165 | 166 | //Create attributed string, with applied syntax highlighting 167 | NSMutableAttributedString *attributedStr = [[NSMutableAttributedString alloc] initWithString:self attributes:attributes]; 168 | CFAttributedStringRef attributedString = (__bridge CFAttributedStringRef)attributedStr; 169 | 170 | //Draw the frame 171 | CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((CFAttributedStringRef)attributedString); 172 | CTFrameRef ctframe = CTFramesetterCreateFrame(framesetter, CFRangeMake(0,CFAttributedStringGetLength(attributedString)),path,NULL); 173 | CTFrameDraw(ctframe,context); 174 | CGPathRelease(path); 175 | CFRelease(font1); 176 | CFRelease(framesetter); 177 | CFRelease(ctframe); 178 | [[attributedStr mutableString] setString:@""]; 179 | CGContextSetTextMatrix(context,CGAffineTransformIdentity); 180 | CGContextTranslateCTM(context,0, height); 181 | CGContextScaleCTM(context,1.0,-1.0); 182 | } 183 | 184 | - (void)drawInContext:(CGContextRef)context withPosition:(CGPoint)p andFont:(UIFont *)font andTextColor:(UIColor *)color andHeight:(float)height{ 185 | [self drawInContext:context withPosition:p andFont:font andTextColor:color andHeight:height andWidth:CGFLOAT_MAX]; 186 | } 187 | 188 | @end 189 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageManager.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageCompat.h" 10 | #import "SDWebImageOperation.h" 11 | #import "SDWebImageDownloader.h" 12 | #import "SDImageCache.h" 13 | 14 | typedef NS_OPTIONS(NSUInteger, SDWebImageOptions) { 15 | /** 16 | * By default, when a URL fail to be downloaded, the URL is blacklisted so the library won't keep trying. 17 | * This flag disable this blacklisting. 18 | */ 19 | SDWebImageRetryFailed = 1 << 0, 20 | 21 | /** 22 | * By default, image downloads are started during UI interactions, this flags disable this feature, 23 | * leading to delayed download on UIScrollView deceleration for instance. 24 | */ 25 | SDWebImageLowPriority = 1 << 1, 26 | 27 | /** 28 | * This flag disables on-disk caching 29 | */ 30 | SDWebImageCacheMemoryOnly = 1 << 2, 31 | 32 | /** 33 | * This flag enables progressive download, the image is displayed progressively during download as a browser would do. 34 | * By default, the image is only displayed once completely downloaded. 35 | */ 36 | SDWebImageProgressiveDownload = 1 << 3, 37 | 38 | /** 39 | * Even if the image is cached, respect the HTTP response cache control, and refresh the image from remote location if needed. 40 | * The disk caching will be handled by NSURLCache instead of SDWebImage leading to slight performance degradation. 41 | * This option helps deal with images changing behind the same request URL, e.g. Facebook graph api profile pics. 42 | * If a cached image is refreshed, the completion block is called once with the cached image and again with the final image. 43 | * 44 | * Use this flag only if you can't make your URLs static with embeded cache busting parameter. 45 | */ 46 | SDWebImageRefreshCached = 1 << 4, 47 | 48 | /** 49 | * In iOS 4+, continue the download of the image if the app goes to background. This is achieved by asking the system for 50 | * extra time in background to let the request finish. If the background task expires the operation will be cancelled. 51 | */ 52 | SDWebImageContinueInBackground = 1 << 5, 53 | 54 | /** 55 | * Handles cookies stored in NSHTTPCookieStore by setting 56 | * NSMutableURLRequest.HTTPShouldHandleCookies = YES; 57 | */ 58 | SDWebImageHandleCookies = 1 << 6, 59 | 60 | /** 61 | * Enable to allow untrusted SSL ceriticates. 62 | * Useful for testing purposes. Use with caution in production. 63 | */ 64 | SDWebImageAllowInvalidSSLCertificates = 1 << 7, 65 | 66 | /** 67 | * By default, image are loaded in the order they were queued. This flag move them to 68 | * the front of the queue and is loaded immediately instead of waiting for the current queue to be loaded (which 69 | * could take a while). 70 | */ 71 | SDWebImageHighPriority = 1 << 8, 72 | 73 | /** 74 | * By default, placeholder images are loaded while the image is loading. This flag will delay the loading 75 | * of the placeholder image until after the image has finished loading. 76 | */ 77 | SDWebImageDelayPlaceholder = 1 << 9, 78 | 79 | /** 80 | * We usually don't call transformDownloadedImage delegate method on animated images, 81 | * as most transformation code would mangle it. 82 | * Use this flag to transform them anyway. 83 | */ 84 | SDWebImageTransformAnimatedImage = 1 << 10, 85 | }; 86 | 87 | typedef void(^SDWebImageCompletionBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL); 88 | 89 | typedef void(^SDWebImageCompletionWithFinishedBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL); 90 | 91 | typedef NSString *(^SDWebImageCacheKeyFilterBlock)(NSURL *url); 92 | 93 | 94 | @class SDWebImageManager; 95 | 96 | @protocol SDWebImageManagerDelegate 97 | 98 | @optional 99 | 100 | /** 101 | * Controls which image should be downloaded when the image is not found in the cache. 102 | * 103 | * @param imageManager The current `SDWebImageManager` 104 | * @param imageURL The url of the image to be downloaded 105 | * 106 | * @return Return NO to prevent the downloading of the image on cache misses. If not implemented, YES is implied. 107 | */ 108 | - (BOOL)imageManager:(SDWebImageManager *)imageManager shouldDownloadImageForURL:(NSURL *)imageURL; 109 | 110 | /** 111 | * Allows to transform the image immediately after it has been downloaded and just before to cache it on disk and memory. 112 | * NOTE: This method is called from a global queue in order to not to block the main thread. 113 | * 114 | * @param imageManager The current `SDWebImageManager` 115 | * @param image The image to transform 116 | * @param imageURL The url of the image to transform 117 | * 118 | * @return The transformed image object. 119 | */ 120 | - (UIImage *)imageManager:(SDWebImageManager *)imageManager transformDownloadedImage:(UIImage *)image withURL:(NSURL *)imageURL; 121 | 122 | @end 123 | 124 | /** 125 | * The SDWebImageManager is the class behind the UIImageView+WebCache category and likes. 126 | * It ties the asynchronous downloader (SDWebImageDownloader) with the image cache store (SDImageCache). 127 | * You can use this class directly to benefit from web image downloading with caching in another context than 128 | * a UIView. 129 | * 130 | * Here is a simple example of how to use SDWebImageManager: 131 | * 132 | * @code 133 | 134 | SDWebImageManager *manager = [SDWebImageManager sharedManager]; 135 | [manager downloadWithURL:imageURL 136 | options:0 137 | progress:nil 138 | completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 139 | if (image) { 140 | // do something with image 141 | } 142 | }]; 143 | 144 | * @endcode 145 | */ 146 | @interface SDWebImageManager : NSObject 147 | 148 | @property (weak, nonatomic) id delegate; 149 | 150 | @property (strong, nonatomic, readonly) SDImageCache *imageCache; 151 | @property (strong, nonatomic, readonly) SDWebImageDownloader *imageDownloader; 152 | 153 | /** 154 | * The cache filter is a block used each time SDWebImageManager need to convert an URL into a cache key. This can 155 | * be used to remove dynamic part of an image URL. 156 | * 157 | * The following example sets a filter in the application delegate that will remove any query-string from the 158 | * URL before to use it as a cache key: 159 | * 160 | * @code 161 | 162 | [[SDWebImageManager sharedManager] setCacheKeyFilter:^(NSURL *url) { 163 | url = [[NSURL alloc] initWithScheme:url.scheme host:url.host path:url.path]; 164 | return [url absoluteString]; 165 | }]; 166 | 167 | * @endcode 168 | */ 169 | @property (nonatomic, copy) SDWebImageCacheKeyFilterBlock cacheKeyFilter; 170 | 171 | /** 172 | * Returns global SDWebImageManager instance. 173 | * 174 | * @return SDWebImageManager shared instance 175 | */ 176 | + (SDWebImageManager *)sharedManager; 177 | 178 | /** 179 | * Downloads the image at the given URL if not present in cache or return the cached version otherwise. 180 | * 181 | * @param url The URL to the image 182 | * @param options A mask to specify options to use for this request 183 | * @param progressBlock A block called while image is downloading 184 | * @param completedBlock A block called when operation has been completed. 185 | * 186 | * This parameter is required. 187 | * 188 | * This block has no return value and takes the requested UIImage as first parameter. 189 | * In case of error the image parameter is nil and the second parameter may contain an NSError. 190 | * 191 | * The third parameter is an `SDImageCacheType` enum indicating if the image was retrived from the local cache 192 | * or from the memory cache or from the network. 193 | * 194 | * The last parameter is set to NO when the SDWebImageProgressiveDownload option is used and the image is 195 | * downloading. This block is thus called repetidly with a partial image. When image is fully downloaded, the 196 | * block is called a last time with the full image and the last parameter set to YES. 197 | * 198 | * @return Returns an NSObject conforming to SDWebImageOperation. Should be an instance of SDWebImageDownloaderOperation 199 | */ 200 | - (id )downloadImageWithURL:(NSURL *)url 201 | options:(SDWebImageOptions)options 202 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 203 | completed:(SDWebImageCompletionWithFinishedBlock)completedBlock; 204 | 205 | /** 206 | * Saves image to cache for given URL 207 | * 208 | * @param image The image to cache 209 | * @param url The URL to the image 210 | * 211 | */ 212 | 213 | - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url; 214 | 215 | /** 216 | * Cancel all current opreations 217 | */ 218 | - (void)cancelAll; 219 | 220 | /** 221 | * Check one or more operations running 222 | */ 223 | - (BOOL)isRunning; 224 | 225 | /** 226 | * Check if image has already been cached 227 | * 228 | * @param url image url 229 | * 230 | * @return if the image was already cached 231 | */ 232 | - (BOOL)cachedImageExistsForURL:(NSURL *)url; 233 | 234 | /** 235 | * Check if image has already been cached on disk only 236 | * 237 | * @param url image url 238 | * 239 | * @return if the image was already cached (disk only) 240 | */ 241 | - (BOOL)diskImageExistsForURL:(NSURL *)url; 242 | 243 | /** 244 | * Async check if image has already been cached 245 | * 246 | * @param url image url 247 | * @param completionBlock the block to be executed when the check is finished 248 | * 249 | * @note the completion block is always executed on the main queue 250 | */ 251 | - (void)cachedImageExistsForURL:(NSURL *)url 252 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 253 | 254 | /** 255 | * Async check if image has already been cached on disk only 256 | * 257 | * @param url image url 258 | * @param completionBlock the block to be executed when the check is finished 259 | * 260 | * @note the completion block is always executed on the main queue 261 | */ 262 | - (void)diskImageExistsForURL:(NSURL *)url 263 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 264 | 265 | 266 | /** 267 | *Return the cache key for a given URL 268 | */ 269 | - (NSString *)cacheKeyForURL:(NSURL *)url; 270 | 271 | @end 272 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/UIButton+WebCache.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageCompat.h" 10 | #import "SDWebImageManager.h" 11 | 12 | /** 13 | * Integrates SDWebImage async downloading and caching of remote images with UIButtonView. 14 | */ 15 | @interface UIButton (WebCache) 16 | 17 | /** 18 | * Get the current image URL. 19 | */ 20 | - (NSURL *)sd_currentImageURL; 21 | 22 | /** 23 | * Get the image URL for a control state. 24 | * 25 | * @param state Which state you want to know the URL for. The values are described in UIControlState. 26 | */ 27 | - (NSURL *)sd_imageURLForState:(UIControlState)state; 28 | 29 | /** 30 | * Set the imageView `image` with an `url`. 31 | * 32 | * The download is asynchronous and cached. 33 | * 34 | * @param url The url for the image. 35 | * @param state The state that uses the specified title. The values are described in UIControlState. 36 | */ 37 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state; 38 | 39 | /** 40 | * Set the imageView `image` with an `url` and a placeholder. 41 | * 42 | * The download is asynchronous and cached. 43 | * 44 | * @param url The url for the image. 45 | * @param state The state that uses the specified title. The values are described in UIControlState. 46 | * @param placeholder The image to be set initially, until the image request finishes. 47 | * @see sd_setImageWithURL:placeholderImage:options: 48 | */ 49 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder; 50 | 51 | /** 52 | * Set the imageView `image` with an `url`, placeholder and custom options. 53 | * 54 | * The download is asynchronous and cached. 55 | * 56 | * @param url The url for the image. 57 | * @param state The state that uses the specified title. The values are described in UIControlState. 58 | * @param placeholder The image to be set initially, until the image request finishes. 59 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 60 | */ 61 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 62 | 63 | /** 64 | * Set the imageView `image` with an `url`. 65 | * 66 | * The download is asynchronous and cached. 67 | * 68 | * @param url The url for the image. 69 | * @param state The state that uses the specified title. The values are described in UIControlState. 70 | * @param completedBlock A block called when operation has been completed. This block has no return value 71 | * and takes the requested UIImage as first parameter. In case of error the image parameter 72 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 73 | * indicating if the image was retrived from the local cache or from the network. 74 | * The fourth parameter is the original image url. 75 | */ 76 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletionBlock)completedBlock; 77 | 78 | /** 79 | * Set the imageView `image` with an `url`, placeholder. 80 | * 81 | * The download is asynchronous and cached. 82 | * 83 | * @param url The url for the image. 84 | * @param state The state that uses the specified title. The values are described in UIControlState. 85 | * @param placeholder The image to be set initially, until the image request finishes. 86 | * @param completedBlock A block called when operation has been completed. This block has no return value 87 | * and takes the requested UIImage as first parameter. In case of error the image parameter 88 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 89 | * indicating if the image was retrived from the local cache or from the network. 90 | * The fourth parameter is the original image url. 91 | */ 92 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 93 | 94 | /** 95 | * Set the imageView `image` with an `url`, placeholder and custom options. 96 | * 97 | * The download is asynchronous and cached. 98 | * 99 | * @param url The url for the image. 100 | * @param state The state that uses the specified title. The values are described in UIControlState. 101 | * @param placeholder The image to be set initially, until the image request finishes. 102 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 103 | * @param completedBlock A block called when operation has been completed. This block has no return value 104 | * and takes the requested UIImage as first parameter. In case of error the image parameter 105 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 106 | * indicating if the image was retrived from the local cache or from the network. 107 | * The fourth parameter is the original image url. 108 | */ 109 | - (void)sd_setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 110 | 111 | /** 112 | * Set the backgroundImageView `image` with an `url`. 113 | * 114 | * The download is asynchronous and cached. 115 | * 116 | * @param url The url for the image. 117 | * @param state The state that uses the specified title. The values are described in UIControlState. 118 | */ 119 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state; 120 | 121 | /** 122 | * Set the backgroundImageView `image` with an `url` and a placeholder. 123 | * 124 | * The download is asynchronous and cached. 125 | * 126 | * @param url The url for the image. 127 | * @param state The state that uses the specified title. The values are described in UIControlState. 128 | * @param placeholder The image to be set initially, until the image request finishes. 129 | * @see sd_setImageWithURL:placeholderImage:options: 130 | */ 131 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder; 132 | 133 | /** 134 | * Set the backgroundImageView `image` with an `url`, placeholder and custom options. 135 | * 136 | * The download is asynchronous and cached. 137 | * 138 | * @param url The url for the image. 139 | * @param state The state that uses the specified title. The values are described in UIControlState. 140 | * @param placeholder The image to be set initially, until the image request finishes. 141 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 142 | */ 143 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 144 | 145 | /** 146 | * Set the backgroundImageView `image` with an `url`. 147 | * 148 | * The download is asynchronous and cached. 149 | * 150 | * @param url The url for the image. 151 | * @param state The state that uses the specified title. The values are described in UIControlState. 152 | * @param completedBlock A block called when operation has been completed. This block has no return value 153 | * and takes the requested UIImage as first parameter. In case of error the image parameter 154 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 155 | * indicating if the image was retrived from the local cache or from the network. 156 | * The fourth parameter is the original image url. 157 | */ 158 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletionBlock)completedBlock; 159 | 160 | /** 161 | * Set the backgroundImageView `image` with an `url`, placeholder. 162 | * 163 | * The download is asynchronous and cached. 164 | * 165 | * @param url The url for the image. 166 | * @param state The state that uses the specified title. The values are described in UIControlState. 167 | * @param placeholder The image to be set initially, until the image request finishes. 168 | * @param completedBlock A block called when operation has been completed. This block has no return value 169 | * and takes the requested UIImage as first parameter. In case of error the image parameter 170 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 171 | * indicating if the image was retrived from the local cache or from the network. 172 | * The fourth parameter is the original image url. 173 | */ 174 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 175 | 176 | /** 177 | * Set the backgroundImageView `image` with an `url`, placeholder and custom options. 178 | * 179 | * The download is asynchronous and cached. 180 | * 181 | * @param url The url for the image. 182 | * @param placeholder The image to be set initially, until the image request finishes. 183 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 184 | * @param completedBlock A block called when operation has been completed. This block has no return value 185 | * and takes the requested UIImage as first parameter. In case of error the image parameter 186 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 187 | * indicating if the image was retrived from the local cache or from the network. 188 | * The fourth parameter is the original image url. 189 | */ 190 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 191 | 192 | /** 193 | * Cancel the current image download 194 | */ 195 | - (void)sd_cancelImageLoadForState:(UIControlState)state; 196 | 197 | /** 198 | * Cancel the current backgroundImage download 199 | */ 200 | - (void)sd_cancelBackgroundImageLoadForState:(UIControlState)state; 201 | 202 | @end 203 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/SDWebImage/SDWebImageDownloader.m: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageDownloader.h" 10 | #import "SDWebImageDownloaderOperation.h" 11 | #import 12 | 13 | NSString *const SDWebImageDownloadStartNotification = @"SDWebImageDownloadStartNotification"; 14 | NSString *const SDWebImageDownloadStopNotification = @"SDWebImageDownloadStopNotification"; 15 | 16 | static NSString *const kProgressCallbackKey = @"progress"; 17 | static NSString *const kCompletedCallbackKey = @"completed"; 18 | 19 | @interface SDWebImageDownloader () 20 | 21 | @property (strong, nonatomic) NSOperationQueue *downloadQueue; 22 | @property (weak, nonatomic) NSOperation *lastAddedOperation; 23 | @property (assign, nonatomic) Class operationClass; 24 | @property (strong, nonatomic) NSMutableDictionary *URLCallbacks; 25 | @property (strong, nonatomic) NSMutableDictionary *HTTPHeaders; 26 | // This queue is used to serialize the handling of the network responses of all the download operation in a single queue 27 | @property (SDDispatchQueueSetterSementics, nonatomic) dispatch_queue_t barrierQueue; 28 | 29 | @end 30 | 31 | @implementation SDWebImageDownloader 32 | 33 | + (void)initialize { 34 | // Bind SDNetworkActivityIndicator if available (download it here: http://github.com/rs/SDNetworkActivityIndicator ) 35 | // To use it, just add #import "SDNetworkActivityIndicator.h" in addition to the SDWebImage import 36 | if (NSClassFromString(@"SDNetworkActivityIndicator")) { 37 | 38 | #pragma clang diagnostic push 39 | #pragma clang diagnostic ignored "-Warc-performSelector-leaks" 40 | id activityIndicator = [NSClassFromString(@"SDNetworkActivityIndicator") performSelector:NSSelectorFromString(@"sharedActivityIndicator")]; 41 | #pragma clang diagnostic pop 42 | 43 | // Remove observer in case it was previously added. 44 | [[NSNotificationCenter defaultCenter] removeObserver:activityIndicator name:SDWebImageDownloadStartNotification object:nil]; 45 | [[NSNotificationCenter defaultCenter] removeObserver:activityIndicator name:SDWebImageDownloadStopNotification object:nil]; 46 | 47 | [[NSNotificationCenter defaultCenter] addObserver:activityIndicator 48 | selector:NSSelectorFromString(@"startActivity") 49 | name:SDWebImageDownloadStartNotification object:nil]; 50 | [[NSNotificationCenter defaultCenter] addObserver:activityIndicator 51 | selector:NSSelectorFromString(@"stopActivity") 52 | name:SDWebImageDownloadStopNotification object:nil]; 53 | } 54 | } 55 | 56 | + (SDWebImageDownloader *)sharedDownloader { 57 | static dispatch_once_t once; 58 | static id instance; 59 | dispatch_once(&once, ^{ 60 | instance = [self new]; 61 | }); 62 | return instance; 63 | } 64 | 65 | - (id)init { 66 | if ((self = [super init])) { 67 | _operationClass = [SDWebImageDownloaderOperation class]; 68 | _executionOrder = SDWebImageDownloaderFIFOExecutionOrder; 69 | _downloadQueue = [NSOperationQueue new]; 70 | _downloadQueue.maxConcurrentOperationCount = 6; 71 | _URLCallbacks = [NSMutableDictionary new]; 72 | _HTTPHeaders = [NSMutableDictionary dictionaryWithObject:@"image/webp,image/*;q=0.8" forKey:@"Accept"]; 73 | _barrierQueue = dispatch_queue_create("com.hackemist.SDWebImageDownloaderBarrierQueue", DISPATCH_QUEUE_CONCURRENT); 74 | _downloadTimeout = 15.0; 75 | } 76 | return self; 77 | } 78 | 79 | - (void)dealloc { 80 | [self.downloadQueue cancelAllOperations]; 81 | SDDispatchQueueRelease(_barrierQueue); 82 | } 83 | 84 | - (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field { 85 | if (value) { 86 | self.HTTPHeaders[field] = value; 87 | } 88 | else { 89 | [self.HTTPHeaders removeObjectForKey:field]; 90 | } 91 | } 92 | 93 | - (NSString *)valueForHTTPHeaderField:(NSString *)field { 94 | return self.HTTPHeaders[field]; 95 | } 96 | 97 | - (void)setMaxConcurrentDownloads:(NSInteger)maxConcurrentDownloads { 98 | _downloadQueue.maxConcurrentOperationCount = maxConcurrentDownloads; 99 | } 100 | 101 | - (NSUInteger)currentDownloadCount { 102 | return _downloadQueue.operationCount; 103 | } 104 | 105 | - (NSInteger)maxConcurrentDownloads { 106 | return _downloadQueue.maxConcurrentOperationCount; 107 | } 108 | 109 | - (void)setOperationClass:(Class)operationClass { 110 | _operationClass = operationClass ?: [SDWebImageDownloaderOperation class]; 111 | } 112 | 113 | - (id )downloadImageWithURL:(NSURL *)url options:(SDWebImageDownloaderOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageDownloaderCompletedBlock)completedBlock { 114 | __block SDWebImageDownloaderOperation *operation; 115 | __weak SDWebImageDownloader *wself = self; 116 | 117 | [self addProgressCallback:progressBlock andCompletedBlock:completedBlock forURL:url createCallback:^{ 118 | NSTimeInterval timeoutInterval = wself.downloadTimeout; 119 | if (timeoutInterval == 0.0) { 120 | timeoutInterval = 15.0; 121 | } 122 | 123 | // In order to prevent from potential duplicate caching (NSURLCache + SDImageCache) we disable the cache for image requests if told otherwise 124 | NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url cachePolicy:(options & SDWebImageDownloaderUseNSURLCache ? NSURLRequestUseProtocolCachePolicy : NSURLRequestReloadIgnoringLocalCacheData) timeoutInterval:timeoutInterval]; 125 | request.HTTPShouldHandleCookies = (options & SDWebImageDownloaderHandleCookies); 126 | request.HTTPShouldUsePipelining = YES; 127 | if (wself.headersFilter) { 128 | request.allHTTPHeaderFields = wself.headersFilter(url, [wself.HTTPHeaders copy]); 129 | } 130 | else { 131 | request.allHTTPHeaderFields = wself.HTTPHeaders; 132 | } 133 | operation = [[wself.operationClass alloc] initWithRequest:request 134 | options:options 135 | progress:^(NSInteger receivedSize, NSInteger expectedSize) { 136 | SDWebImageDownloader *sself = wself; 137 | if (!sself) return; 138 | NSArray *callbacksForURL = [sself callbacksForURL:url]; 139 | for (NSDictionary *callbacks in callbacksForURL) { 140 | SDWebImageDownloaderProgressBlock callback = callbacks[kProgressCallbackKey]; 141 | if (callback) callback(receivedSize, expectedSize); 142 | } 143 | } 144 | completed:^(UIImage *image, NSData *data, NSError *error, BOOL finished) { 145 | SDWebImageDownloader *sself = wself; 146 | if (!sself) return; 147 | NSArray *callbacksForURL = [sself callbacksForURL:url]; 148 | if (finished) { 149 | [sself removeCallbacksForURL:url]; 150 | } 151 | for (NSDictionary *callbacks in callbacksForURL) { 152 | SDWebImageDownloaderCompletedBlock callback = callbacks[kCompletedCallbackKey]; 153 | if (callback) callback(image, data, error, finished); 154 | } 155 | } 156 | cancelled:^{ 157 | SDWebImageDownloader *sself = wself; 158 | if (!sself) return; 159 | [sself removeCallbacksForURL:url]; 160 | }]; 161 | 162 | if (wself.username && wself.password) { 163 | operation.credential = [NSURLCredential credentialWithUser:wself.username password:wself.password persistence:NSURLCredentialPersistenceForSession]; 164 | } 165 | 166 | if (options & SDWebImageDownloaderHighPriority) { 167 | operation.queuePriority = NSOperationQueuePriorityHigh; 168 | } else if (options & SDWebImageDownloaderLowPriority) { 169 | operation.queuePriority = NSOperationQueuePriorityLow; 170 | } 171 | 172 | [wself.downloadQueue addOperation:operation]; 173 | if (wself.executionOrder == SDWebImageDownloaderLIFOExecutionOrder) { 174 | // Emulate LIFO execution order by systematically adding new operations as last operation's dependency 175 | [wself.lastAddedOperation addDependency:operation]; 176 | wself.lastAddedOperation = operation; 177 | } 178 | }]; 179 | 180 | return operation; 181 | } 182 | 183 | - (void)addProgressCallback:(SDWebImageDownloaderProgressBlock)progressBlock andCompletedBlock:(SDWebImageDownloaderCompletedBlock)completedBlock forURL:(NSURL *)url createCallback:(SDWebImageNoParamsBlock)createCallback { 184 | // The URL will be used as the key to the callbacks dictionary so it cannot be nil. If it is nil immediately call the completed block with no image or data. 185 | if (url == nil) { 186 | if (completedBlock != nil) { 187 | completedBlock(nil, nil, nil, NO); 188 | } 189 | return; 190 | } 191 | 192 | dispatch_barrier_sync(self.barrierQueue, ^{ 193 | BOOL first = NO; 194 | if (!self.URLCallbacks[url]) { 195 | self.URLCallbacks[url] = [NSMutableArray new]; 196 | first = YES; 197 | } 198 | 199 | // Handle single download of simultaneous download request for the same URL 200 | NSMutableArray *callbacksForURL = self.URLCallbacks[url]; 201 | NSMutableDictionary *callbacks = [NSMutableDictionary new]; 202 | if (progressBlock) callbacks[kProgressCallbackKey] = [progressBlock copy]; 203 | if (completedBlock) callbacks[kCompletedCallbackKey] = [completedBlock copy]; 204 | [callbacksForURL addObject:callbacks]; 205 | self.URLCallbacks[url] = callbacksForURL; 206 | 207 | if (first) { 208 | createCallback(); 209 | } 210 | }); 211 | } 212 | 213 | - (NSArray *)callbacksForURL:(NSURL *)url { 214 | __block NSArray *callbacksForURL; 215 | dispatch_sync(self.barrierQueue, ^{ 216 | callbacksForURL = self.URLCallbacks[url]; 217 | }); 218 | return [callbacksForURL copy]; 219 | } 220 | 221 | - (void)removeCallbacksForURL:(NSURL *)url { 222 | dispatch_barrier_async(self.barrierQueue, ^{ 223 | [self.URLCallbacks removeObjectForKey:url]; 224 | }); 225 | } 226 | 227 | - (void)setSuspended:(BOOL)suspended { 228 | [self.downloadQueue setSuspended:suspended]; 229 | } 230 | 231 | @end 232 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/VVeboTableView.m: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboTableView.m 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "VVeboTableView.h" 10 | #import "NSString+Additions.h" 11 | #import "UIScreen+Additions.h" 12 | #import "VVeboTableViewCell.h" 13 | #import "UIView+Additions.h" 14 | @interface VVeboTableView() 15 | 16 | @end 17 | 18 | @implementation VVeboTableView{ 19 | NSMutableArray *datas; 20 | NSMutableArray *needLoadArr; 21 | BOOL scrollToToping; 22 | } 23 | 24 | - (instancetype)initWithFrame:(CGRect)frame style:(UITableViewStyle)style{ 25 | self = [super initWithFrame:frame style:style]; 26 | if (self) { 27 | self.separatorStyle = UITableViewCellSeparatorStyleNone; 28 | self.dataSource = self; 29 | self.delegate = self; 30 | datas = [[NSMutableArray alloc] init]; 31 | needLoadArr = [[NSMutableArray alloc] init]; 32 | 33 | [self loadData]; 34 | [self reloadData]; 35 | } 36 | return self; 37 | } 38 | 39 | - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ 40 | return datas.count; 41 | } 42 | 43 | - (NSInteger)numberOfSections{ 44 | return 1; 45 | } 46 | 47 | - (void)drawCell:(VVeboTableViewCell *)cell withIndexPath:(NSIndexPath *)indexPath{ 48 | NSDictionary *data = [datas objectAtIndex:indexPath.row]; 49 | cell.selectionStyle = UITableViewCellSelectionStyleNone; 50 | [cell clear]; 51 | cell.data = data; 52 | if (needLoadArr.count>0&&[needLoadArr indexOfObject:indexPath]==NSNotFound) { 53 | [cell clear]; 54 | return; 55 | } 56 | if (scrollToToping) { 57 | return; 58 | } 59 | [cell draw]; 60 | } 61 | 62 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 63 | VVeboTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"]; 64 | if (cell==nil) { 65 | cell = [[VVeboTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault 66 | reuseIdentifier:@"cell"]; 67 | } 68 | [self drawCell:cell withIndexPath:indexPath]; 69 | return cell; 70 | } 71 | 72 | - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ 73 | NSDictionary *dict = datas[indexPath.row]; 74 | float height = [dict[@"frame"] CGRectValue].size.height; 75 | return height; 76 | } 77 | 78 | - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{ 79 | [needLoadArr removeAllObjects]; 80 | } 81 | 82 | //按需加载 - 如果目标行与当前行相差超过指定行数，只在目标滚动范围的前后指定3行加载。 83 | - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset{ 84 | NSIndexPath *ip = [self indexPathForRowAtPoint:CGPointMake(0, targetContentOffset->y)]; 85 | NSIndexPath *cip = [[self indexPathsForVisibleRows] firstObject]; 86 | NSInteger skipCount = 8; 87 | if (labs(cip.row-ip.row)>skipCount) { 88 | NSArray *temp = [self indexPathsForRowsInRect:CGRectMake(0, targetContentOffset->y, self.width, self.height)]; 89 | NSMutableArray *arr = [NSMutableArray arrayWithArray:temp]; 90 | if (velocity.y<0) { 91 | NSIndexPath *indexPath = [temp lastObject]; 92 | if (indexPath.row+33) { 100 | [arr addObject:[NSIndexPath indexPathForRow:indexPath.row-3 inSection:0]]; 101 | [arr addObject:[NSIndexPath indexPathForRow:indexPath.row-2 inSection:0]]; 102 | [arr addObject:[NSIndexPath indexPathForRow:indexPath.row-1 inSection:0]]; 103 | } 104 | } 105 | [needLoadArr addObjectsFromArray:arr]; 106 | } 107 | } 108 | 109 | - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView{ 110 | scrollToToping = YES; 111 | return YES; 112 | } 113 | 114 | - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{ 115 | scrollToToping = NO; 116 | [self loadContent]; 117 | } 118 | 119 | - (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView{ 120 | scrollToToping = NO; 121 | [self loadContent]; 122 | } 123 | 124 | //用户触摸时第一时间加载内容 125 | - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event{ 126 | if (!scrollToToping) { 127 | [needLoadArr removeAllObjects]; 128 | [self loadContent]; 129 | } 130 | return [super hitTest:point withEvent:event]; 131 | } 132 | 133 | - (void)loadContent{ 134 | if (scrollToToping) { 135 | return; 136 | } 137 | if (self.indexPathsForVisibleRows.count<=0) { 138 | return; 139 | } 140 | if (self.visibleCells&&self.visibleCells.count>0) { 141 | for (id temp in [self.visibleCells copy]) { 142 | VVeboTableViewCell *cell = (VVeboTableViewCell *)temp; 143 | [cell draw]; 144 | } 145 | } 146 | } 147 | 148 | //读取信息 149 | - (void)loadData{ 150 | NSArray *temp = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"data" ofType:@"plist"]]; 151 | for (NSDictionary *dict in temp) { 152 | NSDictionary *user = dict[@"user"]; 153 | NSMutableDictionary *data = [NSMutableDictionary dictionary]; 154 | data[@"avatarUrl"] = user[@"avatar_large"]; 155 | data[@"name"] = user[@"screen_name"]; 156 | NSString *from = [dict valueForKey:@"source"]; 157 | if (from.length>6) { 158 | NSInteger start = [from indexOf:@"\">"]+2; 159 | NSInteger end = [from indexOf:@""]; 160 | from = [from substringFromIndex:start toIndex:end]; 161 | } else { 162 | from = @"未知"; 163 | } 164 | data[@"time"] = @"2015-05-25"; 165 | data[@"from"] = from; 166 | [self setCommentsFrom:dict toData:data]; 167 | [self setRepostsFrom:dict toData:data]; 168 | data[@"text"] = dict[@"text"]; 169 | 170 | NSDictionary *retweet = [dict valueForKey:@"retweeted_status"]; 171 | if (retweet) { 172 | NSMutableDictionary *subData = [NSMutableDictionary dictionary]; 173 | NSDictionary *user = retweet[@"user"]; 174 | subData[@"avatarUrl"] = user[@"avatar_large"]; 175 | subData[@"name"] = user[@"screen_name"]; 176 | subData[@"text"] = [NSString stringWithFormat:@"@%@: %@", subData[@"name"], retweet[@"text"]]; 177 | [self setPicUrlsFrom:retweet toData:subData]; 178 | 179 | { 180 | float width = [UIScreen screenWidth]-SIZE_GAP_LEFT*2; 181 | CGSize size = [subData[@"text"] sizeWithConstrainedToWidth:width fromFont:FontWithSize(SIZE_FONT_SUBCONTENT) lineSpace:5]; 182 | NSInteger sizeHeight = (size.height+.5); 183 | subData[@"textRect"] = [NSValue valueWithCGRect:CGRectMake(SIZE_GAP_LEFT, SIZE_GAP_BIG, width, sizeHeight)]; 184 | sizeHeight += SIZE_GAP_BIG; 185 | if (subData[@"pic_urls"] && [subData[@"pic_urls"] count]>0) { 186 | sizeHeight += (SIZE_GAP_IMG+SIZE_IMAGE+SIZE_GAP_IMG); 187 | } 188 | sizeHeight += SIZE_GAP_BIG; 189 | subData[@"frame"] = [NSValue valueWithCGRect:CGRectMake(0, 0, [UIScreen screenWidth], sizeHeight)]; 190 | } 191 | data[@"subData"] = subData; 192 | } else { 193 | [self setPicUrlsFrom:dict toData:data]; 194 | } 195 | 196 | { 197 | float width = [UIScreen screenWidth]-SIZE_GAP_LEFT*2; 198 | CGSize size = [data[@"text"] sizeWithConstrainedToWidth:width fromFont:FontWithSize(SIZE_FONT_CONTENT) lineSpace:5]; 199 | NSInteger sizeHeight = (size.height+.5); 200 | data[@"textRect"] = [NSValue valueWithCGRect:CGRectMake(SIZE_GAP_LEFT, SIZE_GAP_TOP+SIZE_AVATAR+SIZE_GAP_BIG, width, sizeHeight)]; 201 | sizeHeight += SIZE_GAP_TOP+SIZE_AVATAR+SIZE_GAP_BIG; 202 | if (data[@"pic_urls"] && [data[@"pic_urls"] count]>0) { 203 | sizeHeight += (SIZE_GAP_IMG+SIZE_IMAGE+SIZE_GAP_IMG); 204 | } 205 | 206 | NSMutableDictionary *subData = [data valueForKey:@"subData"]; 207 | if (subData) { 208 | sizeHeight += SIZE_GAP_BIG; 209 | CGRect frame = [subData[@"frame"] CGRectValue]; 210 | CGRect textRect = [subData[@"textRect"] CGRectValue]; 211 | frame.origin.y = sizeHeight; 212 | subData[@"frame"] = [NSValue valueWithCGRect:frame]; 213 | textRect.origin.y = frame.origin.y+SIZE_GAP_BIG; 214 | subData[@"textRect"] = [NSValue valueWithCGRect:textRect]; 215 | sizeHeight += frame.size.height; 216 | data[@"subData"] = subData; 217 | } 218 | 219 | sizeHeight += 30; 220 | data[@"frame"] = [NSValue valueWithCGRect:CGRectMake(0, 0, [UIScreen screenWidth], sizeHeight)]; 221 | } 222 | 223 | [datas addObject:data]; 224 | } 225 | } 226 | 227 | - (void)setCommentsFrom:(NSDictionary *)dict toData:(NSMutableDictionary *)data{ 228 | NSInteger comments = [dict[@"reposts_count"] integerValue]; 229 | if (comments>=10000) { 230 | data[@"reposts"] = [NSString stringWithFormat:@" %.1fw", comments/10000.0]; 231 | } else { 232 | if (comments>0) { 233 | data[@"reposts"] = [NSString stringWithFormat:@" %ld", (long)comments]; 234 | } else { 235 | data[@"reposts"] = @""; 236 | } 237 | } 238 | } 239 | 240 | - (void)setRepostsFrom:(NSDictionary *)dict toData:(NSMutableDictionary *)data{ 241 | NSInteger comments = [dict[@"comments_count"] integerValue]; 242 | if (comments>=10000) { 243 | data[@"comments"] = [NSString stringWithFormat:@" %.1fw", comments/10000.0]; 244 | } else { 245 | if (comments>0) { 246 | data[@"comments"] = [NSString stringWithFormat:@" %ld", (long)comments]; 247 | } else { 248 | data[@"comments"] = @""; 249 | } 250 | } 251 | } 252 | 253 | - (void)setPicUrlsFrom:(NSDictionary *)dict toData:(NSMutableDictionary *)data{ 254 | NSArray *pic_urls = [dict valueForKey:@"pic_urls"]; 255 | NSString *url = [dict valueForKey:@"thumbnail_pic"]; 256 | NSArray *pic_ids = [dict valueForKey:@"pic_ids"]; 257 | if (pic_ids && pic_ids.count>1) { 258 | NSString *typeStr = @"jpg"; 259 | if (pic_ids.count>0||url.length>0) { 260 | typeStr = [url substringFromIndex:url.length-3]; 261 | } 262 | NSMutableArray *temp = [NSMutableArray array]; 263 | for (NSString *pic_url in pic_ids) { 264 | [temp addObject:@{@"thumbnail_pic": [NSString stringWithFormat:@"http://ww2.sinaimg.cn/thumbnail/%@.%@", pic_url, typeStr]}]; 265 | } 266 | data[@"pic_urls"] = temp; 267 | } else { 268 | data[@"pic_urls"] = pic_urls; 269 | } 270 | } 271 | 272 | - (void)removeFromSuperview{ 273 | for (UIView *temp in self.subviews) { 274 | for (VVeboTableViewCell *cell in temp.subviews) { 275 | if ([cell isKindOfClass:[VVeboTableViewCell class]]) { 276 | [cell releaseMemory]; 277 | } 278 | } 279 | } 280 | [[NSNotificationCenter defaultCenter] removeObserver:self]; 281 | [datas removeAllObjects]; 282 | datas = nil; 283 | [self reloadData]; 284 | self.delegate = nil; 285 | [needLoadArr removeAllObjects]; 286 | needLoadArr = nil; 287 | [super removeFromSuperview]; 288 | } 289 | 290 | @end 291 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/view/VVeboTableViewCell.m: -------------------------------------------------------------------------------- 1 | // 2 | // VVeboTableViewCell.m 3 | // VVeboTableViewDemo 4 | // 5 | // Created by Johnil on 15/5/25. 6 | // Copyright (c) 2015年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "VVeboTableViewCell.h" 10 | #import "UIView+Additions.h" 11 | #import "UIScreen+Additions.h" 12 | #import "NSString+Additions.h" 13 | #import "VVeboLabel.h" 14 | #import "UIImageView+WebCache.h" 15 | #import "UIButton+WebCache.h" 16 | 17 | @implementation VVeboTableViewCell { 18 | UIImageView *postBGView; 19 | UIButton *avatarView; 20 | UIImageView *cornerImage; 21 | UIView *topLine; 22 | VVeboLabel *label; 23 | VVeboLabel *detailLabel; 24 | UIScrollView *mulitPhotoScrollView; 25 | BOOL drawed; 26 | NSInteger drawColorFlag; 27 | CGRect commentsRect; 28 | CGRect repostsRect; 29 | } 30 | 31 | - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{ 32 | self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; 33 | if (self) { 34 | self.clipsToBounds = YES; 35 | postBGView = [[UIImageView alloc] initWithFrame:CGRectZero]; 36 | [self.contentView insertSubview:postBGView atIndex:0]; 37 | 38 | avatarView = [UIButton buttonWithType:UIButtonTypeCustom];//[[VVeboAvatarView alloc] initWithFrame:avatarRect]; 39 | avatarView.frame = CGRectMake(SIZE_GAP_LEFT, SIZE_GAP_TOP, SIZE_AVATAR, SIZE_AVATAR); 40 | avatarView.backgroundColor = [UIColor colorWithRed:250/255.0 green:250/255.0 blue:250/255.0 alpha:1]; 41 | avatarView.hidden = NO; 42 | avatarView.tag = NSIntegerMax; 43 | avatarView.clipsToBounds = YES; 44 | [self.contentView addSubview:avatarView]; 45 | 46 | cornerImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, SIZE_AVATAR+5, SIZE_AVATAR+5)]; 47 | cornerImage.center = avatarView.center; 48 | cornerImage.image = [UIImage imageNamed:@"corner_circle@2x.png"]; 49 | cornerImage.tag = NSIntegerMax; 50 | [self.contentView addSubview:cornerImage]; 51 | 52 | topLine = [[UIView alloc] initWithFrame:CGRectMake(0, self.height-.5, [UIScreen screenWidth], .5)]; 53 | topLine.backgroundColor = [UIColor colorWithRed:200/255.0 green:200/255.0 blue:200/255.0 alpha:1]; 54 | topLine.tag = NSIntegerMax; 55 | [self.contentView addSubview:topLine]; 56 | 57 | self.backgroundColor = [UIColor colorWithRed:250/255.0 green:250/255.0 blue:250/255.0 alpha:1]; 58 | 59 | [self addLabel]; 60 | 61 | mulitPhotoScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)]; 62 | mulitPhotoScrollView.scrollsToTop = NO; 63 | mulitPhotoScrollView.showsHorizontalScrollIndicator = NO; 64 | mulitPhotoScrollView.showsVerticalScrollIndicator = NO; 65 | mulitPhotoScrollView.tag = NSIntegerMax; 66 | mulitPhotoScrollView.hidden = YES; 67 | [self.contentView addSubview:mulitPhotoScrollView]; 68 | int h2 = SIZE_GAP_IMG+SIZE_IMAGE; 69 | for (NSInteger i=0; i<9; i++) { 70 | int g = SIZE_GAP_IMG; 71 | int width = SIZE_IMAGE; 72 | float x = SIZE_GAP_LEFT+(g+width)*(i%3); 73 | float y = i/3*h2; 74 | UIImageView *thumb1 = [[UIImageView alloc] initWithFrame:CGRectMake(x, y+2, SIZE_IMAGE, SIZE_IMAGE)]; 75 | thumb1.tag = i+1; 76 | [mulitPhotoScrollView addSubview:thumb1]; 77 | } 78 | } 79 | return self; 80 | } 81 | 82 | - (void)setFrame:(CGRect)frame{ 83 | [super setFrame:frame]; 84 | [self.contentView bringSubviewToFront:topLine]; 85 | topLine.y = self.height-.5; 86 | } 87 | 88 | - (void)setData:(NSDictionary *)data{ 89 | _data = data; 90 | [avatarView setBackgroundImage:nil forState:UIControlStateNormal]; 91 | if ([data valueForKey:@"avatarUrl"]) { 92 | NSURL *url = [NSURL URLWithString:[data valueForKey:@"avatarUrl"]]; 93 | [avatarView sd_setBackgroundImageWithURL:url forState:UIControlStateNormal placeholderImage:nil options:SDWebImageLowPriority]; 94 | } 95 | } 96 | 97 | - (void)addLabel{ 98 | if (label) { 99 | [label removeFromSuperview]; 100 | label = nil; 101 | } 102 | if (detailLabel) { 103 | detailLabel = nil; 104 | } 105 | label = [[VVeboLabel alloc] initWithFrame:[_data[@"textRect"] CGRectValue]]; 106 | label.textColor = [UIColor colorWithRed:50/255.0 green:50/255.0 blue:50/255.0 alpha:1]; 107 | label.backgroundColor = self.backgroundColor; 108 | [self.contentView addSubview:label]; 109 | 110 | detailLabel = [[VVeboLabel alloc] initWithFrame:[_data[@"subTextRect"] CGRectValue]]; 111 | detailLabel.font = FontWithSize(SIZE_FONT_SUBCONTENT); 112 | detailLabel.textColor = [UIColor colorWithRed:50/255.0 green:50/255.0 blue:50/255.0 alpha:1];; 113 | detailLabel.backgroundColor = [UIColor colorWithRed:243/255.0 green:243/255.0 blue:243/255.0 alpha:1]; 114 | [self.contentView addSubview:detailLabel]; 115 | } 116 | 117 | //将主要内容绘制到图片上 118 | - (void)draw{ 119 | if (drawed) { 120 | return; 121 | } 122 | NSInteger flag = drawColorFlag; 123 | drawed = YES; 124 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 125 | CGRect rect = [_data[@"frame"] CGRectValue]; 126 | UIGraphicsBeginImageContextWithOptions(rect.size, YES, 0); 127 | CGContextRef context = UIGraphicsGetCurrentContext(); 128 | [[UIColor colorWithRed:250/255.0 green:250/255.0 blue:250/255.0 alpha:1] set]; 129 | CGContextFillRect(context, rect); 130 | if ([_data valueForKey:@"subData"]) { 131 | [[UIColor colorWithRed:243/255.0 green:243/255.0 blue:243/255.0 alpha:1] set]; 132 | CGRect subFrame = [_data[@"subData"][@"frame"] CGRectValue]; 133 | CGContextFillRect(context, subFrame); 134 | [[UIColor colorWithRed:200/255.0 green:200/255.0 blue:200/255.0 alpha:1] set]; 135 | CGContextFillRect(context, CGRectMake(0, subFrame.origin.y, rect.size.width, .5)); 136 | } 137 | 138 | { 139 | float leftX = SIZE_GAP_LEFT+SIZE_AVATAR+SIZE_GAP_BIG; 140 | float x = leftX; 141 | float y = (SIZE_AVATAR-(SIZE_FONT_NAME+SIZE_FONT_SUBTITLE+6))/2-2+SIZE_GAP_TOP+SIZE_GAP_SMALL-5; 142 | [_data[@"name"] drawInContext:context withPosition:CGPointMake(x, y) andFont:FontWithSize(SIZE_FONT_NAME) 143 | andTextColor:[UIColor colorWithRed:106/255.0 green:140/255.0 blue:181/255.0 alpha:1] 144 | andHeight:rect.size.height]; 145 | y += SIZE_FONT_NAME+5; 146 | float fromX = leftX; 147 | float size = [UIScreen screenWidth]-leftX; 148 | NSString *from = [NSString stringWithFormat:@"%@ %@", _data[@"time"], _data[@"from"]]; 149 | [from drawInContext:context withPosition:CGPointMake(fromX, y) andFont:FontWithSize(SIZE_FONT_SUBTITLE) 150 | andTextColor:[UIColor colorWithRed:178/255.0 green:178/255.0 blue:178/255.0 alpha:1] 151 | andHeight:rect.size.height andWidth:size]; 152 | } 153 | 154 | { 155 | CGRect countRect = CGRectMake(0, rect.size.height-30, [UIScreen screenWidth], 30); 156 | [[UIColor colorWithRed:250/255.0 green:250/255.0 blue:250/255.0 alpha:1] set]; 157 | CGContextFillRect(context, countRect); 158 | float alpha = 1; 159 | 160 | float x = [UIScreen screenWidth]-SIZE_GAP_LEFT-10; 161 | NSString *comments = _data[@"comments"]; 162 | if (comments) { 163 | CGSize size = [comments sizeWithConstrainedToSize:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX) fromFont:FontWithSize(SIZE_FONT_SUBTITLE) lineSpace:5]; 164 | 165 | x -= size.width; 166 | [comments drawInContext:context withPosition:CGPointMake(x, 8+countRect.origin.y) 167 | andFont:FontWithSize(12) 168 | andTextColor:[UIColor colorWithRed:178/255.0 green:178/255.0 blue:178/255.0 alpha:1] 169 | andHeight:rect.size.height]; 170 | [[UIImage imageNamed:@"t_comments.png"] drawInRect:CGRectMake(x-5, 10.5+countRect.origin.y, 10, 9) blendMode:kCGBlendModeNormal alpha:alpha]; 171 | commentsRect = CGRectMake(x-5, self.height-50, [UIScreen screenWidth]-x+5, 50); 172 | x -= 20; 173 | } 174 | 175 | NSString *reposts = _data[@"reposts"]; 176 | if (reposts) { 177 | CGSize size = [reposts sizeWithConstrainedToSize:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX) fromFont:FontWithSize(SIZE_FONT_SUBTITLE) lineSpace:5]; 178 | 179 | x -= MAX(size.width, 5)+SIZE_GAP_BIG; 180 | [reposts drawInContext:context withPosition:CGPointMake(x, 8+countRect.origin.y) 181 | andFont:FontWithSize(12) 182 | andTextColor:[UIColor colorWithRed:178/255.0 green:178/255.0 blue:178/255.0 alpha:1] 183 | andHeight:rect.size.height]; 184 | 185 | [[UIImage imageNamed:@"t_repost.png"] drawInRect:CGRectMake(x-5, 11+countRect.origin.y, 10, 9) blendMode:kCGBlendModeNormal alpha:alpha]; 186 | repostsRect = CGRectMake(x-5, self.height-50, commentsRect.origin.x-x, 50); 187 | x -= 20; 188 | } 189 | 190 | [@"•••" drawInContext:context 191 | withPosition:CGPointMake(SIZE_GAP_LEFT, 8+countRect.origin.y) 192 | andFont:FontWithSize(11) 193 | andTextColor:[UIColor colorWithRed:178/255.0 green:178/255.0 blue:178/255.0 alpha:.5] 194 | andHeight:rect.size.height]; 195 | 196 | if ([_data valueForKey:@"subData"]) { 197 | [[UIColor colorWithRed:200/255.0 green:200/255.0 blue:200/255.0 alpha:1] set]; 198 | CGContextFillRect(context, CGRectMake(0, rect.size.height-30.5, rect.size.width, .5)); 199 | } 200 | } 201 | 202 | UIImage *temp = UIGraphicsGetImageFromCurrentImageContext(); 203 | UIGraphicsEndImageContext(); 204 | dispatch_async(dispatch_get_main_queue(), ^{ 205 | if (flag==drawColorFlag) { 206 | postBGView.frame = rect; 207 | postBGView.image = nil; 208 | postBGView.image = temp; 209 | } 210 | }); 211 | }); 212 | [self drawText]; 213 | [self loadThumb]; 214 | } 215 | 216 | //将文本内容绘制到图片上 217 | - (void)drawText{ 218 | if (label==nil||detailLabel==nil) { 219 | [self addLabel]; 220 | } 221 | label.frame = [_data[@"textRect"] CGRectValue]; 222 | [label setText:_data[@"text"]]; 223 | if ([_data valueForKey:@"subData"]) { 224 | detailLabel.frame = [[_data valueForKey:@"subData"][@"textRect"] CGRectValue]; 225 | [detailLabel setText:[_data valueForKey:@"subData"][@"text"]]; 226 | detailLabel.hidden = NO; 227 | } 228 | } 229 | 230 | - (void)loadThumb{ 231 | float y = 0; 232 | NSArray *urls; 233 | if ([_data valueForKey:@"subData"]) { 234 | CGRect subPostRect = [_data[@"subData"][@"textRect"] CGRectValue]; 235 | y = subPostRect.origin.y+subPostRect.size.height+SIZE_GAP_BIG; 236 | urls = [_data valueForKey:@"subData"][@"pic_urls"]; 237 | } else { 238 | CGRect postRect = [_data[@"textRect"] CGRectValue]; 239 | y = postRect.origin.y+postRect.size.height+SIZE_GAP_BIG; 240 | urls = _data[@"pic_urls"]; 241 | } 242 | if (urls.count>0) { 243 | mulitPhotoScrollView.hidden = NO; 244 | mulitPhotoScrollView.y = y; 245 | mulitPhotoScrollView.frame = CGRectMake(0, y, [UIScreen screenWidth], SIZE_GAP_IMG+((SIZE_GAP_IMG+SIZE_IMAGE)*(urls.count))); 246 | for (NSInteger i=0; i<9; i++) { 247 | UIImageView *thumbView = (UIImageView *)[mulitPhotoScrollView viewWithTag:i+1]; 248 | thumbView.contentMode = UIViewContentModeScaleAspectFill; 249 | thumbView.backgroundColor = [UIColor lightGrayColor]; 250 | thumbView.clipsToBounds = YES; 251 | if (i 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageManager.h" 10 | #import 11 | 12 | @interface SDWebImageCombinedOperation : NSObject 13 | 14 | @property (assign, nonatomic, getter = isCancelled) BOOL cancelled; 15 | @property (copy, nonatomic) SDWebImageNoParamsBlock cancelBlock; 16 | @property (strong, nonatomic) NSOperation *cacheOperation; 17 | 18 | @end 19 | 20 | @interface SDWebImageManager () 21 | 22 | @property (strong, nonatomic, readwrite) SDImageCache *imageCache; 23 | @property (strong, nonatomic, readwrite) SDWebImageDownloader *imageDownloader; 24 | @property (strong, nonatomic) NSMutableArray *failedURLs; 25 | @property (strong, nonatomic) NSMutableArray *runningOperations; 26 | 27 | @end 28 | 29 | @implementation SDWebImageManager 30 | 31 | + (id)sharedManager { 32 | static dispatch_once_t once; 33 | static id instance; 34 | dispatch_once(&once, ^{ 35 | instance = [self new]; 36 | }); 37 | return instance; 38 | } 39 | 40 | - (id)init { 41 | if ((self = [super init])) { 42 | _imageCache = [self createCache]; 43 | _imageDownloader = [SDWebImageDownloader sharedDownloader]; 44 | _failedURLs = [NSMutableArray new]; 45 | _runningOperations = [NSMutableArray new]; 46 | } 47 | return self; 48 | } 49 | 50 | - (SDImageCache *)createCache { 51 | return [SDImageCache sharedImageCache]; 52 | } 53 | 54 | - (NSString *)cacheKeyForURL:(NSURL *)url { 55 | if (self.cacheKeyFilter) { 56 | return self.cacheKeyFilter(url); 57 | } 58 | else { 59 | return [url absoluteString]; 60 | } 61 | } 62 | 63 | - (BOOL)cachedImageExistsForURL:(NSURL *)url { 64 | NSString *key = [self cacheKeyForURL:url]; 65 | if ([self.imageCache imageFromMemoryCacheForKey:key] != nil) return YES; 66 | return [self.imageCache diskImageExistsWithKey:key]; 67 | } 68 | 69 | - (BOOL)diskImageExistsForURL:(NSURL *)url { 70 | NSString *key = [self cacheKeyForURL:url]; 71 | return [self.imageCache diskImageExistsWithKey:key]; 72 | } 73 | 74 | - (void)cachedImageExistsForURL:(NSURL *)url 75 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock { 76 | NSString *key = [self cacheKeyForURL:url]; 77 | 78 | BOOL isInMemoryCache = ([self.imageCache imageFromMemoryCacheForKey:key] != nil); 79 | 80 | if (isInMemoryCache) { 81 | // making sure we call the completion block on the main queue 82 | dispatch_async(dispatch_get_main_queue(), ^{ 83 | if (completionBlock) { 84 | completionBlock(YES); 85 | } 86 | }); 87 | return; 88 | } 89 | 90 | [self.imageCache diskImageExistsWithKey:key completion:^(BOOL isInDiskCache) { 91 | // the completion block of checkDiskCacheForImageWithKey:completion: is always called on the main queue, no need to further dispatch 92 | if (completionBlock) { 93 | completionBlock(isInDiskCache); 94 | } 95 | }]; 96 | } 97 | 98 | - (void)diskImageExistsForURL:(NSURL *)url 99 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock { 100 | NSString *key = [self cacheKeyForURL:url]; 101 | 102 | [self.imageCache diskImageExistsWithKey:key completion:^(BOOL isInDiskCache) { 103 | // the completion block of checkDiskCacheForImageWithKey:completion: is always called on the main queue, no need to further dispatch 104 | if (completionBlock) { 105 | completionBlock(isInDiskCache); 106 | } 107 | }]; 108 | } 109 | 110 | - (id )downloadImageWithURL:(NSURL *)url 111 | options:(SDWebImageOptions)options 112 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 113 | completed:(SDWebImageCompletionWithFinishedBlock)completedBlock { 114 | // Invoking this method without a completedBlock is pointless 115 | NSAssert(completedBlock != nil, @"If you mean to prefetch the image, use -[SDWebImagePrefetcher prefetchURLs] instead"); 116 | 117 | // Very common mistake is to send the URL using NSString object instead of NSURL. For some strange reason, XCode won't 118 | // throw any warning for this type mismatch. Here we failsafe this error by allowing URLs to be passed as NSString. 119 | if ([url isKindOfClass:NSString.class]) { 120 | url = [NSURL URLWithString:(NSString *)url]; 121 | } 122 | 123 | // Prevents app crashing on argument type error like sending NSNull instead of NSURL 124 | if (![url isKindOfClass:NSURL.class]) { 125 | url = nil; 126 | } 127 | 128 | __block SDWebImageCombinedOperation *operation = [SDWebImageCombinedOperation new]; 129 | __weak SDWebImageCombinedOperation *weakOperation = operation; 130 | 131 | BOOL isFailedUrl = NO; 132 | @synchronized (self.failedURLs) { 133 | isFailedUrl = [self.failedURLs containsObject:url]; 134 | } 135 | 136 | if (!url || (!(options & SDWebImageRetryFailed) && isFailedUrl)) { 137 | dispatch_main_sync_safe(^{ 138 | NSError *error = [NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorFileDoesNotExist userInfo:nil]; 139 | completedBlock(nil, error, SDImageCacheTypeNone, YES, url); 140 | }); 141 | return operation; 142 | } 143 | 144 | @synchronized (self.runningOperations) { 145 | [self.runningOperations addObject:operation]; 146 | } 147 | NSString *key = [self cacheKeyForURL:url]; 148 | 149 | operation.cacheOperation = [self.imageCache queryDiskCacheForKey:key done:^(UIImage *image, SDImageCacheType cacheType) { 150 | if (operation.isCancelled) { 151 | @synchronized (self.runningOperations) { 152 | [self.runningOperations removeObject:operation]; 153 | } 154 | 155 | return; 156 | } 157 | 158 | if ((!image || options & SDWebImageRefreshCached) && (![self.delegate respondsToSelector:@selector(imageManager:shouldDownloadImageForURL:)] || [self.delegate imageManager:self shouldDownloadImageForURL:url])) { 159 | if (image && options & SDWebImageRefreshCached) { 160 | dispatch_main_sync_safe(^{ 161 | // If image was found in the cache bug SDWebImageRefreshCached is provided, notify about the cached image 162 | // AND try to re-download it in order to let a chance to NSURLCache to refresh it from server. 163 | completedBlock(image, nil, cacheType, YES, url); 164 | }); 165 | } 166 | 167 | // download if no image or requested to refresh anyway, and download allowed by delegate 168 | SDWebImageDownloaderOptions downloaderOptions = 0; 169 | if (options & SDWebImageLowPriority) downloaderOptions |= SDWebImageDownloaderLowPriority; 170 | if (options & SDWebImageProgressiveDownload) downloaderOptions |= SDWebImageDownloaderProgressiveDownload; 171 | if (options & SDWebImageRefreshCached) downloaderOptions |= SDWebImageDownloaderUseNSURLCache; 172 | if (options & SDWebImageContinueInBackground) downloaderOptions |= SDWebImageDownloaderContinueInBackground; 173 | if (options & SDWebImageHandleCookies) downloaderOptions |= SDWebImageDownloaderHandleCookies; 174 | if (options & SDWebImageAllowInvalidSSLCertificates) downloaderOptions |= SDWebImageDownloaderAllowInvalidSSLCertificates; 175 | if (options & SDWebImageHighPriority) downloaderOptions |= SDWebImageDownloaderHighPriority; 176 | if (image && options & SDWebImageRefreshCached) { 177 | // force progressive off if image already cached but forced refreshing 178 | downloaderOptions &= ~SDWebImageDownloaderProgressiveDownload; 179 | // ignore image read from NSURLCache if image if cached but force refreshing 180 | downloaderOptions |= SDWebImageDownloaderIgnoreCachedResponse; 181 | } 182 | id subOperation = [self.imageDownloader downloadImageWithURL:url options:downloaderOptions progress:progressBlock completed:^(UIImage *downloadedImage, NSData *data, NSError *error, BOOL finished) { 183 | if (weakOperation.isCancelled) { 184 | // Do nothing if the operation was cancelled 185 | // See #699 for more details 186 | // if we would call the completedBlock, there could be a race condition between this block and another completedBlock for the same object, so if this one is called second, we will overwrite the new data 187 | } 188 | else if (error) { 189 | dispatch_main_sync_safe(^{ 190 | if (!weakOperation.isCancelled) { 191 | completedBlock(nil, error, SDImageCacheTypeNone, finished, url); 192 | } 193 | }); 194 | 195 | if (error.code != NSURLErrorNotConnectedToInternet && error.code != NSURLErrorCancelled && error.code != NSURLErrorTimedOut) { 196 | @synchronized (self.failedURLs) { 197 | [self.failedURLs addObject:url]; 198 | } 199 | } 200 | } 201 | else { 202 | BOOL cacheOnDisk = !(options & SDWebImageCacheMemoryOnly); 203 | 204 | if (options & SDWebImageRefreshCached && image && !downloadedImage) { 205 | // Image refresh hit the NSURLCache cache, do not call the completion block 206 | } 207 | else if (downloadedImage && (!downloadedImage.images || (options & SDWebImageTransformAnimatedImage)) && [self.delegate respondsToSelector:@selector(imageManager:transformDownloadedImage:withURL:)]) { 208 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{ 209 | UIImage *transformedImage = [self.delegate imageManager:self transformDownloadedImage:downloadedImage withURL:url]; 210 | 211 | if (transformedImage && finished) { 212 | BOOL imageWasTransformed = ![transformedImage isEqual:downloadedImage]; 213 | [self.imageCache storeImage:transformedImage recalculateFromImage:imageWasTransformed imageData:data forKey:key toDisk:cacheOnDisk]; 214 | } 215 | 216 | dispatch_main_sync_safe(^{ 217 | if (!weakOperation.isCancelled) { 218 | completedBlock(transformedImage, nil, SDImageCacheTypeNone, finished, url); 219 | } 220 | }); 221 | }); 222 | } 223 | else { 224 | if (downloadedImage && finished) { 225 | [self.imageCache storeImage:downloadedImage recalculateFromImage:NO imageData:data forKey:key toDisk:cacheOnDisk]; 226 | } 227 | 228 | dispatch_main_sync_safe(^{ 229 | if (!weakOperation.isCancelled) { 230 | completedBlock(downloadedImage, nil, SDImageCacheTypeNone, finished, url); 231 | } 232 | }); 233 | } 234 | } 235 | 236 | if (finished) { 237 | @synchronized (self.runningOperations) { 238 | [self.runningOperations removeObject:operation]; 239 | } 240 | } 241 | }]; 242 | operation.cancelBlock = ^{ 243 | [subOperation cancel]; 244 | 245 | @synchronized (self.runningOperations) { 246 | [self.runningOperations removeObject:weakOperation]; 247 | } 248 | }; 249 | } 250 | else if (image) { 251 | dispatch_main_sync_safe(^{ 252 | if (!weakOperation.isCancelled) { 253 | completedBlock(image, nil, cacheType, YES, url); 254 | } 255 | }); 256 | @synchronized (self.runningOperations) { 257 | [self.runningOperations removeObject:operation]; 258 | } 259 | } 260 | else { 261 | // Image not in cache and download disallowed by delegate 262 | dispatch_main_sync_safe(^{ 263 | if (!weakOperation.isCancelled) { 264 | completedBlock(nil, nil, SDImageCacheTypeNone, YES, url); 265 | } 266 | }); 267 | @synchronized (self.runningOperations) { 268 | [self.runningOperations removeObject:operation]; 269 | } 270 | } 271 | }]; 272 | 273 | return operation; 274 | } 275 | 276 | - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url { 277 | if (image && url) { 278 | NSString *key = [self cacheKeyForURL:url]; 279 | [self.imageCache storeImage:image forKey:key toDisk:YES]; 280 | } 281 | } 282 | 283 | - (void)cancelAll { 284 | @synchronized (self.runningOperations) { 285 | NSArray *copiedOperations = [self.runningOperations copy]; 286 | [copiedOperations makeObjectsPerformSelector:@selector(cancel)]; 287 | [self.runningOperations removeObjectsInArray:copiedOperations]; 288 | } 289 | } 290 | 291 | - (BOOL)isRunning { 292 | return self.runningOperations.count > 0; 293 | } 294 | 295 | @end 296 | 297 | 298 | @implementation SDWebImageCombinedOperation 299 | 300 | - (void)setCancelBlock:(SDWebImageNoParamsBlock)cancelBlock { 301 | // check if the operation is already cancelled, then we just call the cancelBlock 302 | if (self.isCancelled) { 303 | if (cancelBlock) { 304 | cancelBlock(); 305 | } 306 | _cancelBlock = nil; // don't forget to nil the cancelBlock, otherwise we will get crashes 307 | } else { 308 | _cancelBlock = [cancelBlock copy]; 309 | } 310 | } 311 | 312 | - (void)cancel { 313 | self.cancelled = YES; 314 | if (self.cacheOperation) { 315 | [self.cacheOperation cancel]; 316 | self.cacheOperation = nil; 317 | } 318 | if (self.cancelBlock) { 319 | self.cancelBlock(); 320 | 321 | // TODO: this is a temporary fix to #809. 322 | // Until we can figure the exact cause of the crash, going with the ivar instead of the setter 323 | // self.cancelBlock = nil; 324 | _cancelBlock = nil; 325 | } 326 | } 327 | 328 | @end 329 | -------------------------------------------------------------------------------- /VVeboTableViewDemo/UIView+Additions.m: -------------------------------------------------------------------------------- 1 | // 2 | // UIView+Additions.m 3 | // Additions 4 | // 5 | // Created by Johnil on 13-6-7. 6 | // Copyright (c) 2013年 Johnil. All rights reserved. 7 | // 8 | 9 | #import "UIView+Additions.h" 10 | #import 11 | #import 12 | 13 | @implementation UIView (Additions) 14 | 15 | - (float)boundsWidth{ 16 | return self.bounds.size.width; 17 | } 18 | 19 | - (float)boundsHeight{ 20 | return self.bounds.size.width; 21 | } 22 | 23 | - (void)setBoundsWidth:(float)w{ 24 | CGRect frame = self.bounds; 25 | frame.size.width = w; 26 | self.bounds = frame; 27 | } 28 | 29 | - (void)setBoundsHeight:(float)h{ 30 | CGRect frame = self.bounds; 31 | frame.size.height = h; 32 | self.bounds = frame; 33 | } 34 | 35 | - (float)x{ 36 | return self.frame.origin.x; 37 | } 38 | 39 | - (float)y{ 40 | return self.frame.origin.y; 41 | } 42 | 43 | - (float)width{ 44 | return self.frame.size.width; 45 | } 46 | 47 | - (float)height{ 48 | return self.frame.size.height; 49 | } 50 | 51 | - (void)setX:(float)x{ 52 | CGRect frame = self.frame; 53 | frame.origin.x = x; 54 | self.frame = frame; 55 | } 56 | 57 | - (void)setY:(float)y{ 58 | CGRect frame = self.frame; 59 | frame.origin.y = y; 60 | self.frame = frame; 61 | } 62 | 63 | - (void)setWidth:(float)w{ 64 | CGRect frame = self.frame; 65 | frame.size.width = w; 66 | self.frame = frame; 67 | } 68 | 69 | - (void)setHeight:(float)h{ 70 | CGRect frame = self.frame; 71 | frame.size.height = h; 72 | self.frame = frame; 73 | } 74 | 75 | //- (void)fadeIn{ 76 | // [self fadeInOnComplet:nil]; 77 | //} 78 | // 79 | //- (void)fadeOut{ 80 | // [self fadeOutOnComplet:nil]; 81 | //} 82 | // 83 | //- (void)fadeInOnComplet:(void(^)(BOOL finished))complet{ 84 | // self.alpha = 0; 85 | // [UIView animateWithDuration:.18 delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{ 86 | // self.alpha = 1; 87 | // } completion:complet]; 88 | //} 89 | // 90 | //- (void)fadeOutOnComplet:(void(^)(BOOL finished))complet{ 91 | // [UIView animateWithDuration:.18 delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{ 92 | // self.alpha = 0; 93 | // } completion:complet]; 94 | // if ([UIView areAnimationsEnabled]) { 95 | // [UIView setAnimationsEnabled:YES]; 96 | // } 97 | //} 98 | // 99 | //- (void)removeAllSubviews{ 100 | // for (UIView *temp in self.subviews) { 101 | // [temp removeFromSuperview]; 102 | // } 103 | //} 104 | // 105 | //- (void)removeSubviewWithTag:(NSInteger)tag{ 106 | // for (UIView *temp in self.subviews) { 107 | // if (temp.tag==tag) { 108 | // [temp removeFromSuperview]; 109 | // } 110 | // } 111 | //} 112 | // 113 | //- (void)removeSubviewExceptTag:(NSInteger)tag{ 114 | // for (UIView *temp in self.subviews) { 115 | // if (temp.tag!=tag) { 116 | // if ([temp isKindOfClass:[UIImageView class]]) { 117 | // [(UIImageView *)temp setImage:nil]; 118 | // } 119 | // [temp removeFromSuperview]; 120 | // } 121 | // } 122 | //} 123 | // 124 | //- (void)removeSubviewExceptClass:(Class)class{ 125 | // for (UIView *temp in self.subviews) { 126 | // if (![temp isKindOfClass:class]) { 127 | // [temp removeFromSuperview]; 128 | // } 129 | // } 130 | //} 131 | // 132 | //- (UIView *)addLine:(UIColor *)color frame:(CGRect)frame{ 133 | // UIView *line = [[UIView alloc] initWithFrame:frame]; 134 | // line.backgroundColor = color; 135 | // [self addSubview:line]; 136 | // return line; 137 | //} 138 | // 139 | //- (UIImage *)toImage{ 140 | // return [self toImagewhithAlpha:NO]; 141 | //} 142 | // 143 | //- (UIImage *)toRetinaImageRealTime{ 144 | // UIGraphicsBeginImageContextWithOptions(self.bounds.size, YES, 0); 145 | // [self.layer renderInContext:UIGraphicsGetCurrentContext()]; 146 | // UIImage *screenShotimage = UIGraphicsGetImageFromCurrentImageContext(); 147 | // UIGraphicsEndImageContext(); 148 | // return screenShotimage; 149 | //} 150 | // 151 | //- (UIImage *)toRetinaImage{ 152 | // UIGraphicsBeginImageContextWithOptions(self.bounds.size, YES, 0); 153 | // [self drawViewHierarchyInRect:self.bounds 154 | // afterScreenUpdates:NO]; 155 | // UIImage *screenShotimage = UIGraphicsGetImageFromCurrentImageContext(); 156 | // UIGraphicsEndImageContext(); 157 | // return screenShotimage; 158 | //} 159 | // 160 | //- (UIImage *)toAlphaRetinaImageRealTime{ 161 | // UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0); 162 | // [self.layer renderInContext:UIGraphicsGetCurrentContext()]; 163 | // UIImage *screenShotimage = UIGraphicsGetImageFromCurrentImageContext(); 164 | // UIGraphicsEndImageContext(); 165 | // return screenShotimage; 166 | //} 167 | // 168 | //- (UIImage *)toAlphaRetinaImage{ 169 | // UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0); 170 | // [self drawViewHierarchyInRect:self.bounds 171 | // afterScreenUpdates:NO]; 172 | // UIImage *screenShotimage = UIGraphicsGetImageFromCurrentImageContext(); 173 | // UIGraphicsEndImageContext(); 174 | // return screenShotimage; 175 | //} 176 | // 177 | //- (UIImage *)toImagewhithAlpha:(BOOL)alpha{ 178 | // NSInteger scale = ([UIDevice isiPhone4]||[UIDevice isiPad])?5:2.5; 179 | // CGSize size = CGSizeMake((NSInteger)(self.width/scale), (NSInteger)self.height/scale); 180 | // UIGraphicsBeginImageContextWithOptions(size, !alpha, 1); 181 | // [self drawViewHierarchyInRect:CGRectMake(0, 0, size.width, size.height) 182 | // afterScreenUpdates:NO]; 183 | // UIImage *screenShotimage = UIGraphicsGetImageFromCurrentImageContext(); 184 | // UIGraphicsEndImageContext(); 185 | // return [screenShotimage normalize]; 186 | //} 187 | // 188 | //- (UIImage *)toImageWithRect:(CGRect)frame{ 189 | // return [self toImageWithRect:frame withAlpha:NO]; 190 | //} 191 | // 192 | //- (void)addBorder{ 193 | // UIView *line = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.width, .5)]; 194 | // line.backgroundColor = [VVeboConfigCenter defaultCenter].color_RepostBorder; 195 | // [self addSubview:line]; 196 | // 197 | // UIView *line2 = [[UIView alloc] initWithFrame:CGRectMake(0, self.height-.5, self.width, .5)]; 198 | // line2.backgroundColor = [VVeboConfigCenter defaultCenter].color_RepostBorder; 199 | // [self addSubview:line2]; 200 | // 201 | // UIView *line3 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, .5, self.height)]; 202 | // line3.backgroundColor = [VVeboConfigCenter defaultCenter].color_RepostBorder; 203 | // [self addSubview:line3]; 204 | // 205 | // UIView *line4 = [[UIView alloc] initWithFrame:CGRectMake(self.width-.5, 0, .5, self.height)]; 206 | // line4.backgroundColor = [VVeboConfigCenter defaultCenter].color_RepostBorder; 207 | // [self addSubview:line4]; 208 | //} 209 | // 210 | //- (UIImage *)toImageWithRect:(CGRect)frame withAlpha:(BOOL)alpha{ 211 | // UIGraphicsBeginImageContextWithOptions(frame.size, !alpha, 1);//这里通过设置scale为1来截取{[UIScreen screenWidth], 49}大小的图,而不是在retina下截取2x大小的图 212 | // CGContextRef context = UIGraphicsGetCurrentContext(); 213 | // CGContextConcatCTM(context, CGAffineTransformMakeTranslation(-frame.origin.x, -frame.origin.y)); 214 | // [self.layer renderInContext:context]; 215 | // UIImage *screenShot1 = UIGraphicsGetImageFromCurrentImageContext(); 216 | // UIGraphicsEndImageContext(); 217 | // return screenShot1; 218 | //} 219 | // 220 | //- (UIImage *)visbleToImage{ 221 | // UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0); 222 | // CGContextRef context = UIGraphicsGetCurrentContext(); 223 | // if ([self isKindOfClass:[UIScrollView class]]) { 224 | // CGPoint offset=[(UIScrollView *)self contentOffset]; 225 | // CGContextTranslateCTM(context, -offset.x, -offset.y); 226 | // } 227 | //// [self.layer renderInContext:context]; 228 | // [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES]; 229 | // UIImage *visibleScrollViewImage = UIGraphicsGetImageFromCurrentImageContext(); 230 | // UIGraphicsEndImageContext(); 231 | // return visibleScrollViewImage; 232 | //} 233 | // 234 | //- (void)addWhiteViewWithAlpha:(float)alpha{ 235 | // UIView *white = [[UIView alloc] initWithFrame:CGRectChangeOrigin(self.frame, CGPointZero)]; 236 | // white.backgroundColor = [UIColor whiteColor]; 237 | // white.alpha = alpha; 238 | // [self addSubview:white]; 239 | //} 240 | // 241 | //- (void)addWhiteView{ 242 | // [self addWhiteViewWithAlpha:.8]; 243 | //} 244 | // 245 | //- (void)addBlackView{ 246 | // UIView *black = [[UIView alloc] initWithFrame:CGRectChangeOrigin(self.frame, CGPointZero)]; 247 | // black.backgroundColor = [UIColor blackColor]; 248 | // black.alpha = .85; 249 | // [self addSubview:black]; 250 | //} 251 | // 252 | //- (void)addShadowWithAlpha:(float)alpha{ 253 | // UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(0, 5, self.bounds.size.width, self.bounds.size.height)]; 254 | // [self.layer setShadowColor:[UIColor grayColor].CGColor]; 255 | // [self.layer setShadowOpacity:alpha]; 256 | // [self.layer setShadowRadius:10.0f]; 257 | // [self.layer setShadowPath:[path CGPath]]; 258 | //} 259 | // 260 | //- (void)addShadow{ 261 | // [self addShadowWithAlpha:1]; 262 | //} 263 | // 264 | //- (void)addShadowWithColor:(UIColor *)color{ 265 | // UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(0, 5, self.bounds.size.width, self.bounds.size.height)]; 266 | // [self.layer setShadowColor:color.CGColor]; 267 | // [self.layer setShadowOpacity:1]; 268 | // [self.layer setShadowRadius:10.0f]; 269 | // [self.layer setShadowPath:[path CGPath]]; 270 | //} 271 | // 272 | //- (void)removeShadow{ 273 | // self.layer.shadowOpacity = 0; 274 | // self.layer.shadowRadius = 0; 275 | //} 276 | // 277 | //- (UIView *)findAndResignFirstResponder{ 278 | // if (self.isFirstResponder) { 279 | // return self; 280 | // } 281 | // for (UIView *subView in self.subviews) { 282 | // UIView *temp = [subView findAndResignFirstResponder]; 283 | // if (temp!=nil) { 284 | // return temp; 285 | // } 286 | // } 287 | // return nil; 288 | //} 289 | // 290 | //- (void)addCorner{ 291 | // UIImageView *cornder = [[UIImageView alloc] initWithImage:[[UIImage imageNamed:@"corner.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(15, 15, 15, 15)]]; 292 | // cornder.contentMode = UIViewContentModeScaleAspectFit; 293 | // cornder.frame = CGRectMake(0, 0, self.width, self.height); 294 | // [self addSubview:cornder]; 295 | //} 296 | // 297 | //- (void)shake:(float)range{ 298 | // CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.translation.y"]; 299 | // animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; 300 | // animation.duration = 0.5; 301 | // animation.values = @[ @(-range), @(range), @(-range/2), @(range/2), @(-range/5), @(range/5), @(0) ]; 302 | // [self.layer addAnimation:animation forKey:@"shake"]; 303 | //} 304 | // 305 | //- (void)shakeRepeat:(float)range{ 306 | // CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.translation.y"]; 307 | // animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; 308 | // animation.duration = 0.6; 309 | // animation.values = @[ @(-range), @(range), @(-range/2), @(range/2), @(-range/5), @(range/5), @(0) ]; 310 | // animation.repeatCount = NSIntegerMax; 311 | // [self.layer addAnimation:animation forKey:@"shake"]; 312 | //} 313 | // 314 | //- (void)shakeX:(float)range{ 315 | // CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.translation.x"]; 316 | // animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; 317 | // animation.duration = 0.6; 318 | // animation.values = @[ @(-range), @(range), @(-range/2), @(range/2), @(-range/5), @(range/5), @(0) ]; 319 | // [self.layer addAnimation:animation forKey:@"shake"]; 320 | //} 321 | // 322 | //- (void)rasterize{ 323 | // self.layer.shouldRasterize = YES; 324 | // self.layer.rasterizationScale = [UIScreen scale]; 325 | //} 326 | // 327 | //+ (void)vveboAnimations:(void (^)(void))animations{ 328 | // [UIView vveboAnimateWithDuration:.18 delay:0 animations:animations completion:nil]; 329 | //} 330 | // 331 | //+ (void)vveboAnimations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion{ 332 | // [UIView vveboAnimateWithDuration:.18 delay:0 animations:animations completion:completion]; 333 | //} 334 | // 335 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations{ 336 | // [UIView vveboAnimateWithDuration:duration delay:0 animations:animations completion:nil]; 337 | //} 338 | // 339 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion{ 340 | // [UIView vveboAnimateWithDuration:duration delay:0 animations:animations completion:completion]; 341 | //} 342 | // 343 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion{ 344 | // [UIView vveboAnimateWithDuration:duration delay:delay options:UIViewAnimationOptionCurveLinear animations:animations completion:completion]; 345 | //} 346 | // 347 | //+ (void)vveboAnimateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion{ 348 | // if (![UIView areAnimationsEnabled]) { 349 | // [UIView setAnimationsEnabled:YES]; 350 | // } 351 | // [UIView animateWithDuration:duration delay:delay options:options animations:animations completion:completion]; 352 | //} 353 | // 354 | //- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ 355 | // if (self.touchBeganBlock) { 356 | // self.touchBeganBlock([touches anyObject], self); 357 | // } 358 | // [super touchesBegan:touches withEvent:event]; 359 | //} 360 | // 361 | //- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ 362 | // if (self.touchEndBlock) { 363 | // self.touchEndBlock([touches anyObject], self); 364 | // } 365 | // [super touchesEnded:touches withEvent:event]; 366 | //} 367 | // 368 | //- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{ 369 | // if (self.touchMoveBlock) { 370 | // self.touchMoveBlock([touches anyObject], self); 371 | // } 372 | // [super touchesMoved:touches withEvent:event]; 373 | //} 374 | // 375 | //- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{ 376 | // if (self.touchEndBlock) { 377 | // self.touchEndBlock([touches anyObject], self); 378 | // } 379 | // [super touchesCancelled:touches withEvent:event]; 380 | //} 381 | // 382 | //- (void)addLine:(CGRect)rect{ 383 | // UIColor *color = self.lineColor; 384 | // if (self.lineColor==nil) { 385 | // color = [UIColor grayColor]; 386 | // } 387 | // UIView *line = [[UIView alloc] initWithFrame:rect]; 388 | // line.backgroundColor = color; 389 | // [self addSubview:line]; 390 | //} 391 | // 392 | //- (BOOL)hasActionSheetOrAlert{ 393 | // if ([self isKindOfClass:[UIAlertView class]]||[self isKindOfClass:[UIActionSheet class]]) { 394 | // return YES; 395 | // } 396 | // for (UIView *subView in self.subviews) { 397 | // BOOL temp = [subView hasActionSheetOrAlert]; 398 | // if (temp) { 399 | // return temp; 400 | // } 401 | // } 402 | // return NO; 403 | //} 404 | // 405 | //- (UIView *)subviewWithTag:(NSInteger)tag{ 406 | // for (UIView *temp in self.subviews) { 407 | // if (temp.tag==tag) { 408 | // return temp; 409 | // } 410 | // } 411 | // return nil; 412 | //} 413 | 414 | @end 415 | --------------------------------------------------------------------------------