├── screenshots └── DownLoader.gif ├── 77 - 多个文件同时下载 ├── 65 - 网络视频(xml解析) │ ├── Log │ │ ├── NSArray+Log.h │ │ └── NSArray+Log.m │ ├── Images.xcassets │ │ ├── 555.imageset │ │ │ ├── 555.png │ │ │ └── Contents.json │ │ ├── user_default.imageset │ │ │ ├── user_default.png │ │ │ └── Contents.json │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── SVProgressHUD │ │ ├── SVProgressHUD.bundle │ │ │ ├── info.png │ │ │ ├── error.png │ │ │ ├── error@2x.png │ │ │ ├── error@3x.png │ │ │ ├── info@2x.png │ │ │ ├── info@3x.png │ │ │ ├── success.png │ │ │ ├── angle-mask.png │ │ │ ├── success@2x.png │ │ │ ├── success@3x.png │ │ │ ├── angle-mask@2x.png │ │ │ └── angle-mask@3x.png │ │ ├── SVProgressHUD-Prefix.pch │ │ ├── SVIndefiniteAnimatedView.h │ │ ├── SVProgressHUD.h │ │ └── SVIndefiniteAnimatedView.m │ ├── ViewController.h │ ├── ViewCell.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 │ ├── main.m │ ├── downLoader │ │ ├── SXProgessButton.h │ │ ├── SXDownloader.h │ │ ├── SXDownloaderManager.h │ │ ├── SXProgessButton.m │ │ ├── SXDownloaderManager.m │ │ └── SXDownloader.m │ ├── Model │ │ ├── Video.h │ │ └── Video.m │ ├── Info.plist │ ├── ViewCell.m │ ├── AppDelegate.m │ ├── Base.lproj │ │ ├── LaunchScreen.xib │ │ └── Main.storyboard │ ├── vvv.xml │ └── ViewController.m ├── 65 - 网络视频(xml解析).xcodeproj │ └── project.xcworkspace │ │ └── contents.xcworkspacedata └── 65 - 网络视频(xml解析)Tests │ ├── Info.plist │ └── _5________xml___Tests.m ├── README.md ├── .gitignore └── LICENSE /screenshots/DownLoader.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/dsxNiubility/SXMultiTaskDownloader/HEAD/screenshots/DownLoader.gif -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Log/NSArray+Log.h: -------------------------------------------------------------------------------- 1 | #import 2 | 3 | @interface NSArray (Log) 4 | 5 | @end 6 | 7 | @interface NSDictionary (Log) 8 | 9 | @end -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Images.xcassets/555.imageset/555.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/dsxNiubility/SXMultiTaskDownloader/HEAD/77 - 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多个文件同时下载/65 - 网络视频(xml解析)/SVProgressHUD/SVProgressHUD.bundle/angle-mask@3x.png -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Images.xcassets/user_default.imageset/user_default.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/dsxNiubility/SXMultiTaskDownloader/HEAD/77 - 多个文件同时下载/65 - 网络视频(xml解析)/Images.xcassets/user_default.imageset/user_default.png -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/SVProgressHUD/SVProgressHUD-Prefix.pch: -------------------------------------------------------------------------------- 1 | // 2 | // Prefix header for all source files of the 'SVProgressHUD' target in the 'SVProgressHUD' project 3 | // 4 | 5 | #ifdef __OBJC__ 6 | #import 7 | #endif 8 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析).xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # SXMultiTaskDownloader 2 | 多任务异步下载器 3 | 4 | ![image](https://github.com/dsxNiubility/SXMultiTaskDownloader/raw/master/screenshots/DownLoader.gif) 5 | 6 | * 使用了自写的下载工具单例类 7 | * 可以实现`多个`文件同时`异步`下载，主界面拖拽`完全无卡顿` 8 | * 每次点击下载时都会先判断本地文件是否存在，是否下载一半，并且自动从`断点续传` 9 | * 终止程序后再次运行依旧可以实现断点续传，因为反正都是要判断本地文件的 10 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UITableViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/ViewCell.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewCell.h 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "Video.h" 11 | 12 | @interface ViewCell : UITableViewCell 13 | 14 | @property(nonatomic,strong) Video *video; 15 | 16 | @end 17 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. 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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. 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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXProgessButton.h: -------------------------------------------------------------------------------- 1 | // 2 | // SXProgessButton.h 3 | // 75 - URLSession断点续传 4 | // 5 | // Created by 董 尚先 on 15-1-19. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface SXProgessButton : UIButton 12 | 13 | @property (nonatomic,assign) float progress; 14 | 15 | @property (nonatomic,assign) float lineWidth; 16 | 17 | 18 | 19 | @end 20 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Images.xcassets/555.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x", 6 | "filename" : "555.png" 7 | }, 8 | { 9 | "idiom" : "universal", 10 | "scale" : "2x" 11 | }, 12 | { 13 | "idiom" : "universal", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Images.xcassets/user_default.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x", 6 | "filename" : "user_default.png" 7 | }, 8 | { 9 | "idiom" : "universal", 10 | "scale" : "2x" 11 | }, 12 | { 13 | "idiom" : "universal", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/SVProgressHUD/SVIndefiniteAnimatedView.h: -------------------------------------------------------------------------------- 1 | // 2 | // SVIndefiniteAnimatedView.h 3 | // SVProgressHUD 4 | // 5 | // Created by Guillaume Campagna on 2014-12-05. 6 | // 7 | // 8 | 9 | #import 10 | 11 | @interface SVIndefiniteAnimatedView : UIView 12 | 13 | @property (nonatomic, assign) CGFloat strokeThickness; 14 | @property (nonatomic, assign) CGFloat radius; 15 | @property (nonatomic, strong) UIColor *strokeColor; 16 | 17 | @end 18 | 19 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXDownloader.h: -------------------------------------------------------------------------------- 1 | // 2 | // SXDownloader.h 3 | // 76 - 自写下载管理器 4 | // 5 | // Created by 董 尚先 on 15-1-20. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface SXDownloader : NSObject 12 | 13 | - (void)downLoadWithURL:(NSURL *)url progress:(void (^)(float progress))progress completion:(void (^)(NSString *filePath))completion failed:(void(^)(NSString *failed))failed;// $$$$$ 14 | 15 | - (void)pause; 16 | @end 17 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXDownloaderManager.h: -------------------------------------------------------------------------------- 1 | // 2 | // SXDownloaderManager.h 3 | // 76 - 自写下载管理器 4 | // 5 | // Created by 董 尚先 on 15-1-20. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface SXDownloaderManager : NSObject 12 | 13 | + (instancetype)sharedDownloaderManager; 14 | 15 | - (void)downLoadWithURL:(NSURL *)url progress:(void (^)(float progress))progress completion:(void (^)(NSString *filePath))completion failed:(void(^)(NSString *failed))failed;// $$$$$ 16 | 17 | - (void)pauseWithURL:(NSURL *)url; 18 | 19 | @end 20 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | "info" : { 35 | "version" : 1, 36 | "author" : "xcode" 37 | } 38 | } -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)Tests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | com.appleInternational.$(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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Log/NSArray+Log.m: -------------------------------------------------------------------------------- 1 | #import "NSArray+Log.h" 2 | 3 | @implementation NSArray (Log) 4 | 5 | - (NSString *)descriptionWithLocale:(id)locale 6 | { 7 | NSMutableString *strM = [NSMutableString stringWithString:@"(\n"]; 8 | 9 | [self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) { 10 | [strM appendFormat:@"\t%@,\n", obj]; 11 | }]; 12 | 13 | [strM appendString:@")"]; 14 | 15 | return strM; 16 | } 17 | 18 | @end 19 | 20 | @implementation NSDictionary (Log) 21 | 22 | - (NSString *)descriptionWithLocale:(id)locale 23 | { 24 | NSMutableString *strM = [NSMutableString stringWithString:@"{\n"]; 25 | 26 | [self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { 27 | [strM appendFormat:@"\t%@ = %@;\n", key, obj]; 28 | }]; 29 | 30 | [strM appendString:@"}\n"]; 31 | 32 | return strM; 33 | } 34 | 35 | @end -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Model/Video.h: -------------------------------------------------------------------------------- 1 | #import 2 | #import 3 | 4 | @interface Video : NSObject 5 | 6 | // strong 在设置数值时只是引用计数＋1 7 | // copy 属性，在设置数值的时候，会做一个copy操作 8 | // 提示：为了避免不必要的麻烦，网络模型在设置属性时，可以都使用 copy 9 | @property (nonatomic, copy) NSNumber *videoId; 10 | @property (nonatomic, copy) NSString *name; 11 | @property (nonatomic, copy) NSNumber *length; 12 | @property (nonatomic, copy) NSString *videoURL; 13 | @property (nonatomic, copy) NSString *imageURL; 14 | @property (nonatomic, copy) NSString *desc; 15 | @property (nonatomic, copy) NSString *teacher; 16 | 17 | @property (nonatomic, readonly) NSString *time; 18 | 19 | @property(nonatomic,strong) NSURL *fullVideoURL; 20 | 21 | @property (nonatomic,assign) CGFloat progress; 22 | 23 | 24 | /** 25 | 完成的图像路径 26 | */ 27 | @property (nonatomic, strong) NSURL *fullImageURL; 28 | 29 | - (instancetype)initWithDict:(NSDictionary *)dict; 30 | + (instancetype)videoWithDict:(NSDictionary *)dict; 31 | 32 | @end 33 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)Tests/_5________xml___Tests.m: -------------------------------------------------------------------------------- 1 | // 2 | // _5________xml___Tests.m 3 | // 65 - 网络视频(xml解析)Tests 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | 12 | @interface _5________xml___Tests : XCTestCase 13 | 14 | @end 15 | 16 | @implementation _5________xml___Tests 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 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 董铂然 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | com.appleInternational.$(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 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | 40 | 41 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/ViewCell.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewCell.m 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import "ViewCell.h" 10 | #import "UIImageView+WebCache.h" 11 | #import "SXProgessButton.h" 12 | 13 | @interface ViewCell () 14 | @property (weak, nonatomic) IBOutlet UIImageView *img; 15 | @property (weak, nonatomic) IBOutlet UILabel *nameLable; 16 | @property (weak, nonatomic) IBOutlet UILabel *timeLable; 17 | @property (weak, nonatomic) IBOutlet UILabel *teacherLable; 18 | 19 | @property (weak, nonatomic) IBOutlet SXProgessButton *btnDownloadView; 20 | 21 | 22 | @end 23 | @implementation ViewCell 24 | 25 | - (void)awakeFromNib { 26 | // Initialization code 27 | } 28 | 29 | - (void)setSelected:(BOOL)selected animated:(BOOL)animated { 30 | [super setSelected:selected animated:animated]; 31 | 32 | // Configure the view for the selected state 33 | } 34 | 35 | - (void)setVideo:(Video *)video 36 | { 37 | _video = video; 38 | 39 | self.nameLable.text = video.name; 40 | self.teacherLable.text = video.teacher; 41 | self.timeLable.text = video.time; 42 | self.btnDownloadView.progress = video.progress; 43 | 44 | // NSLog(@"%@",video.fullImageURL); 45 | [self.img sd_setImageWithURL:video.fullImageURL placeholderImage:[UIImage imageNamed:@"user_default"] options:SDWebImageRetryFailed | SDWebImageLowPriority]; 46 | } 47 | 48 | @end 49 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXProgessButton.m: -------------------------------------------------------------------------------- 1 | // 2 | // SXProgessButton.m 3 | // 75 - URLSession断点续传 4 | // 5 | // Created by 董 尚先 on 15-1-19. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import "SXProgessButton.h" 10 | 11 | @implementation SXProgessButton 12 | 13 | - (void)setProgress:(float)progress 14 | { 15 | _progress = progress; 16 | 17 | self.titleLabel.text = [NSString stringWithFormat:@"%.01f%%",self.progress * 100]; 18 | 19 | [self setNeedsDisplay]; 20 | 21 | } 22 | 23 | - (void)awakeFromNib 24 | { 25 | self.lineWidth = 3.0; 26 | 27 | 28 | } 29 | 30 | - (void)layoutSubviews 31 | { 32 | self.titleLabel.frame = CGRectMake(10, 10, 70, 30); 33 | } 34 | 35 | - (void)drawRect:(CGRect)rect 36 | { 37 | CGPoint point = CGPointMake(self.bounds.size.height * 0.5, self.bounds.size.width * 0.5); 38 | 39 | CGFloat r = MIN(self.bounds.size.height * 0.5, self.bounds.size.width * 0.5); 40 | 41 | r -= 3; 42 | 43 | CGFloat start = -M_PI_2; 44 | CGFloat end = self.progress * 2* M_PI +start; 45 | 46 | UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:point radius:r startAngle:start endAngle:end clockwise:YES]; 47 | path.lineWidth = self.lineWidth; 48 | path.lineCapStyle= kCGLineCapRound; 49 | 50 | [[UIColor redColor] setStroke]; 51 | 52 | [path stroke]; 53 | 54 | UIBezierPath *path2 = [UIBezierPath bezierPathWithArcCenter:point radius:r startAngle:end endAngle:start clockwise:YES]; 55 | path.lineWidth = self.lineWidth; 56 | path.lineCapStyle= kCGLineCapRound; 57 | 58 | [[UIColor grayColor] setStroke]; 59 | 60 | [path2 stroke]; 61 | 62 | } 63 | 64 | @end 65 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/Model/Video.m: -------------------------------------------------------------------------------- 1 | #import "Video.h" 2 | 3 | @implementation Video 4 | 5 | - (instancetype)initWithDict:(NSDictionary *)dict { 6 | self = [super init]; 7 | if (self) { 8 | [self setValuesForKeysWithDictionary:dict]; 9 | } 10 | return self; 11 | } 12 | 13 | + (instancetype)videoWithDict:(NSDictionary *)dict { 14 | return [[self alloc] initWithDict:dict]; 15 | } 16 | 17 | #define kBaseURL @"http://localhost/" 18 | - (NSURL *)fullImageURL { 19 | if (_fullImageURL == nil) { 20 | // NSString *urlString = [kBaseURL stringByAppendingPathComponent:self.imageURL]; 21 | NSString *urlstring = self.imageURL; 22 | 23 | _fullImageURL = [NSURL URLWithString:urlstring]; 24 | } 25 | return _fullImageURL; 26 | } 27 | 28 | - (NSURL *)fullVideoURL 29 | { 30 | if (_fullVideoURL == nil) { 31 | // NSString *urlstring = [kBaseURL stringByAppendingPathComponent:self.videoURL]; 32 | NSString *urlstring = self.videoURL; 33 | urlstring =[urlstring stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 34 | 35 | _fullVideoURL = [NSURL URLWithString:urlstring]; 36 | } 37 | return _fullVideoURL; 38 | } 39 | 40 | - (NSString *)time { 41 | int len = self.length.intValue; 42 | 43 | return [NSString stringWithFormat:@"%02d:%02d:%02d", len / 3600, (len % 3600) / 60, (len % 60)]; 44 | } 45 | 46 | - (NSString *)description { 47 | return [NSString stringWithFormat:@"<%@ : %p> { videoId : %@, name : %@ %p, length : %@ %p, videoURL : %@ %p, imageURL : %@, desc : %@, teacher : %@}", [self class], self, self.videoId, self.name, self.name, self.length, self.length, self.videoURL, self.videoURL, self.imageURL, self.desc, self.teacher]; 48 | } 49 | 50 | @end 51 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. 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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXDownloaderManager.m: -------------------------------------------------------------------------------- 1 | // 2 | // SXDownloaderManager.m 3 | // 76 - 自写下载管理器 4 | // 5 | // Created by 董 尚先 on 15-1-20. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import "SXDownloaderManager.h" 10 | #import "SXDownloader.h" 11 | 12 | @interface SXDownloaderManager () 13 | 14 | @property(nonatomic,strong) NSMutableDictionary *downLoadCache; 15 | 16 | @property(nonatomic,copy) void (^failed)(NSString *failed); 17 | 18 | 19 | @end 20 | 21 | @implementation SXDownloaderManager 22 | 23 | + (instancetype)sharedDownloaderManager 24 | { 25 | static id obj; 26 | static dispatch_once_t onceToken; 27 | dispatch_once(&onceToken, ^{ 28 | obj = [[self alloc]init]; 29 | }); 30 | return obj; 31 | } 32 | 33 | - (NSMutableDictionary *)downLoadCache 34 | { 35 | if (_downLoadCache == nil) { 36 | _downLoadCache = [[NSMutableDictionary alloc]init]; 37 | } 38 | return _downLoadCache; 39 | } 40 | 41 | - (void)downLoadWithURL:(NSURL *)url progress:(void (^)(float))progress completion:(void (^)(NSString *))completion failed:(void (^)(NSString *))failed 42 | { 43 | self.failed = failed; 44 | 45 | SXDownloader *download = self.downLoadCache[url.path]; 46 | 47 | if (download != nil) { 48 | if (failed) { 49 | failed(@"已经在下载队列了 请勿重复点击"); 50 | } 51 | return; 52 | } 53 | 54 | download = [[SXDownloader alloc]init]; 55 | 56 | [self.downLoadCache setObject:download forKey:url.path]; 57 | 58 | // NSLog(@"下载后往哪放 %@",url.path); 59 | 60 | [download downLoadWithURL:url progress:progress completion:^(NSString *filePath) { 61 | [self.downLoadCache removeObjectForKey:url.path]; 62 | if (completion) { 63 | completion(filePath); 64 | } 65 | } failed:failed]; 66 | 67 | } 68 | 69 | - (void)pauseWithURL:(NSURL *)url 70 | { 71 | SXDownloader *download = self.downLoadCache[url.path]; 72 | 73 | if (download == nil) { 74 | if (self.failed) { 75 | self.failed(@"无效操作"); 76 | } 77 | return; 78 | } 79 | 80 | [download pause]; 81 | [self.downLoadCache removeObjectForKey:url.path]; 82 | } 83 | 84 | @end 85 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/SVProgressHUD/SVProgressHUD.h: -------------------------------------------------------------------------------- 1 | // 2 | // SVProgressHUD.h 3 | // 4 | // Copyright 2011-2014 Sam Vermette. All rights reserved. 5 | // 6 | // https://github.com/samvermette/SVProgressHUD 7 | // 8 | 9 | #import 10 | #import 11 | 12 | extern NSString * const SVProgressHUDDidReceiveTouchEventNotification; 13 | extern NSString * const SVProgressHUDDidTouchDownInsideNotification; 14 | extern NSString * const SVProgressHUDWillDisappearNotification; 15 | extern NSString * const SVProgressHUDDidDisappearNotification; 16 | extern NSString * const SVProgressHUDWillAppearNotification; 17 | extern NSString * const SVProgressHUDDidAppearNotification; 18 | 19 | extern NSString * const SVProgressHUDStatusUserInfoKey; 20 | 21 | typedef NS_ENUM(NSUInteger, SVProgressHUDMaskType) { 22 | SVProgressHUDMaskTypeNone = 1, // allow user interactions while HUD is displayed 23 | SVProgressHUDMaskTypeClear, // don't allow user interactions 24 | SVProgressHUDMaskTypeBlack, // don't allow user interactions and dim the UI in the back of the HUD 25 | SVProgressHUDMaskTypeGradient // don't allow user interactions and dim the UI with a a-la-alert-view background gradient 26 | }; 27 | 28 | @interface SVProgressHUD : UIView 29 | 30 | #pragma mark - Customization 31 | 32 | + (void)setBackgroundColor:(UIColor*)color; // default is [UIColor whiteColor] 33 | + (void)setForegroundColor:(UIColor*)color; // default is [UIColor blackColor] 34 | + (void)setRingThickness:(CGFloat)width; // default is 4 pt 35 | + (void)setFont:(UIFont*)font; // default is [UIFont preferredFontForTextStyle:UIFontTextStyleSubheadline] 36 | + (void)setInfoImage:(UIImage*)image; // default is the bundled info image provided by Freepik 37 | + (void)setSuccessImage:(UIImage*)image; // default is the bundled success image provided by Freepik 38 | + (void)setErrorImage:(UIImage*)image; // default is the bundled error image provided by Freepik 39 | + (void)setDefaultMaskType:(SVProgressHUDMaskType)maskType; // default is SVProgressHUDMaskTypeNone 40 | + (void)setViewForExtension:(UIView*)view; // default is nil, only used if #define SV_APP_EXTENSIONS is set 41 | 42 | #pragma mark - Show Methods 43 | 44 | + (void)show; 45 | + (void)showWithMaskType:(SVProgressHUDMaskType)maskType; 46 | + (void)showWithStatus:(NSString*)status; 47 | + (void)showWithStatus:(NSString*)status maskType:(SVProgressHUDMaskType)maskType; 48 | 49 | + (void)showProgress:(float)progress; 50 | + (void)showProgress:(float)progress maskType:(SVProgressHUDMaskType)maskType; 51 | + (void)showProgress:(float)progress status:(NSString*)status; 52 | + (void)showProgress:(float)progress status:(NSString*)status maskType:(SVProgressHUDMaskType)maskType; 53 | 54 | + (void)setStatus:(NSString*)string; // change the HUD loading status while it's showing 55 | 56 | // stops the activity indicator, shows a glyph + status, and dismisses HUD a little bit later 57 | + (void)showInfoWithStatus:(NSString *)string; 58 | + (void)showInfoWithStatus:(NSString *)string maskType:(SVProgressHUDMaskType)maskType; 59 | 60 | + (void)showSuccessWithStatus:(NSString*)string; 61 | + (void)showSuccessWithStatus:(NSString*)string maskType:(SVProgressHUDMaskType)maskType; 62 | 63 | + (void)showErrorWithStatus:(NSString *)string; 64 | + (void)showErrorWithStatus:(NSString *)string maskType:(SVProgressHUDMaskType)maskType; 65 | 66 | // use 28x28 white pngs 67 | + (void)showImage:(UIImage*)image status:(NSString*)status; 68 | + (void)showImage:(UIImage*)image status:(NSString*)status maskType:(SVProgressHUDMaskType)maskType; 69 | 70 | + (void)setOffsetFromCenter:(UIOffset)offset; 71 | + (void)resetOffsetFromCenter; 72 | 73 | + (void)popActivity; // decrease activity count, if activity count == 0 the HUD is dismissed 74 | + (void)dismiss; 75 | 76 | + (BOOL)isVisible; 77 | 78 | @end 79 | 80 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/vvv.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 11 | 19 | 27 | 49 | 57 | 65 | 73 | 81 | 89 | 90 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/SVProgressHUD/SVIndefiniteAnimatedView.m: -------------------------------------------------------------------------------- 1 | // 2 | // SVIndefiniteAnimatedView.m 3 | // SVProgressHUD 4 | // 5 | // Created by Guillaume Campagna on 2014-12-05. 6 | // 7 | // 8 | 9 | #import "SVIndefiniteAnimatedView.h" 10 | 11 | #pragma mark SVIndefiniteAnimatedView 12 | 13 | @interface SVIndefiniteAnimatedView () 14 | 15 | @property (nonatomic, strong) CAShapeLayer *indefiniteAnimatedLayer; 16 | 17 | @end 18 | 19 | @implementation SVIndefiniteAnimatedView 20 | 21 | - (void)willMoveToSuperview:(UIView *)newSuperview { 22 | if (newSuperview) { 23 | [self layoutAnimatedLayer]; 24 | } else { 25 | [_indefiniteAnimatedLayer removeFromSuperlayer]; 26 | _indefiniteAnimatedLayer = nil; 27 | } 28 | } 29 | 30 | - (void)layoutAnimatedLayer { 31 | CALayer *layer = self.indefiniteAnimatedLayer; 32 | 33 | [self.layer addSublayer:layer]; 34 | layer.position = CGPointMake(CGRectGetWidth(self.bounds) - CGRectGetWidth(layer.bounds) / 2, CGRectGetHeight(self.bounds) - CGRectGetHeight(layer.bounds) / 2); 35 | } 36 | 37 | - (CAShapeLayer*)indefiniteAnimatedLayer { 38 | if(!_indefiniteAnimatedLayer) { 39 | CGPoint arcCenter = CGPointMake(self.radius+self.strokeThickness/2+5, self.radius+self.strokeThickness/2+5); 40 | CGRect rect = CGRectMake(0.0f, 0.0f, arcCenter.x*2, arcCenter.y*2); 41 | 42 | UIBezierPath* smoothedPath = [UIBezierPath bezierPathWithArcCenter:arcCenter 43 | radius:self.radius 44 | startAngle:M_PI*3/2 45 | endAngle:M_PI/2+M_PI*5 46 | clockwise:YES]; 47 | 48 | _indefiniteAnimatedLayer = [CAShapeLayer layer]; 49 | _indefiniteAnimatedLayer.contentsScale = [[UIScreen mainScreen] scale]; 50 | _indefiniteAnimatedLayer.frame = rect; 51 | _indefiniteAnimatedLayer.fillColor = [UIColor clearColor].CGColor; 52 | _indefiniteAnimatedLayer.strokeColor = self.strokeColor.CGColor; 53 | _indefiniteAnimatedLayer.lineWidth = self.strokeThickness; 54 | _indefiniteAnimatedLayer.lineCap = kCALineCapRound; 55 | _indefiniteAnimatedLayer.lineJoin = kCALineJoinBevel; 56 | _indefiniteAnimatedLayer.path = smoothedPath.CGPath; 57 | 58 | CALayer *maskLayer = [CALayer layer]; 59 | maskLayer.contents = (id)[[UIImage imageNamed:@"SVProgressHUD.bundle/angle-mask"] CGImage]; 60 | maskLayer.frame = _indefiniteAnimatedLayer.bounds; 61 | _indefiniteAnimatedLayer.mask = maskLayer; 62 | 63 | NSTimeInterval animationDuration = 1; 64 | CAMediaTimingFunction *linearCurve = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; 65 | 66 | CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"]; 67 | animation.fromValue = 0; 68 | animation.toValue = [NSNumber numberWithFloat:M_PI*2]; 69 | animation.duration = animationDuration; 70 | animation.timingFunction = linearCurve; 71 | animation.removedOnCompletion = NO; 72 | animation.repeatCount = INFINITY; 73 | animation.fillMode = kCAFillModeForwards; 74 | animation.autoreverses = NO; 75 | [_indefiniteAnimatedLayer.mask addAnimation:animation forKey:@"rotate"]; 76 | 77 | CAAnimationGroup *animationGroup = [CAAnimationGroup animation]; 78 | animationGroup.duration = animationDuration; 79 | animationGroup.repeatCount = INFINITY; 80 | animationGroup.removedOnCompletion = NO; 81 | animationGroup.timingFunction = linearCurve; 82 | 83 | CABasicAnimation *strokeStartAnimation = [CABasicAnimation animationWithKeyPath:@"strokeStart"]; 84 | strokeStartAnimation.fromValue = @0.015; 85 | strokeStartAnimation.toValue = @0.515; 86 | 87 | CABasicAnimation *strokeEndAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"]; 88 | strokeEndAnimation.fromValue = @0.485; 89 | strokeEndAnimation.toValue = @0.985; 90 | 91 | animationGroup.animations = @[strokeStartAnimation, strokeEndAnimation]; 92 | [_indefiniteAnimatedLayer addAnimation:animationGroup forKey:@"progress"]; 93 | 94 | } 95 | return _indefiniteAnimatedLayer; 96 | } 97 | 98 | - (void)setFrame:(CGRect)frame { 99 | [super setFrame:frame]; 100 | 101 | if (self.superview) { 102 | [self layoutAnimatedLayer]; 103 | } 104 | } 105 | 106 | - (void)setRadius:(CGFloat)radius { 107 | _radius = radius; 108 | 109 | [_indefiniteAnimatedLayer removeFromSuperlayer]; 110 | _indefiniteAnimatedLayer = nil; 111 | 112 | if (self.superview) { 113 | [self layoutAnimatedLayer]; 114 | } 115 | } 116 | 117 | - (void)setStrokeColor:(UIColor *)strokeColor { 118 | _strokeColor = strokeColor; 119 | _indefiniteAnimatedLayer.strokeColor = strokeColor.CGColor; 120 | } 121 | 122 | - (void)setStrokeThickness:(CGFloat)strokeThickness { 123 | _strokeThickness = strokeThickness; 124 | _indefiniteAnimatedLayer.lineWidth = _strokeThickness; 125 | } 126 | 127 | - (CGSize)sizeThatFits:(CGSize)size { 128 | return CGSizeMake((self.radius+self.strokeThickness/2+5)*2, (self.radius+self.strokeThickness/2+5)*2); 129 | } 130 | 131 | @end 132 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/downLoader/SXDownloader.m: -------------------------------------------------------------------------------- 1 | // 2 | // SXDownloader.m 3 | // 76 - 自写下载管理器 4 | // 5 | // Created by 董 尚先 on 15-1-20. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import "SXDownloader.h" 10 | #import "SVProgressHUD.h" 11 | 12 | @interface SXDownloader () 13 | 14 | @property (nonatomic,assign) long long expectedContentLength; 15 | @property (nonatomic,assign) long long currentLength; 16 | @property(nonatomic,copy) NSString *filePath; 17 | @property(nonatomic,strong) NSURL *downLoadUrl; 18 | @property(nonatomic,strong) NSURLConnection *downLoadURLConnection; 19 | @property (nonatomic,assign) CFRunLoopRef downLoadRunLoop; 20 | @property(nonatomic,strong) NSOutputStream *fileStrem; 21 | 22 | @property(nonatomic,copy) void (^progress)(float); 23 | @property(nonatomic,copy) void (^completion)(NSString *); 24 | @property(nonatomic,copy) void (^failed)(NSString *); 25 | 26 | @end 27 | 28 | 29 | @implementation SXDownloader 30 | 31 | - (void)pause 32 | { 33 | [self.downLoadURLConnection cancel]; 34 | } 35 | 36 | - (void)downLoadWithURL:(NSURL *)url progress:(void (^)(float))progress completion:(void (^)(NSString *))completion failed:(void (^)(NSString *))failed 37 | { 38 | self.downLoadUrl = url; 39 | self.progress = progress; 40 | self.completion = completion; 41 | self.failed = failed; 42 | 43 | [self checkServerFileInfo:url]; 44 | NSLog(@"大小是%lld",self.expectedContentLength); 45 | 46 | if (![self checkLocalFile]) { 47 | if (self.failed) { 48 | self.failed(@"下载过了啊"); 49 | } 50 | return; 51 | } 52 | 53 | NSLog(@"需要从 %lld 开始下载",self.currentLength); 54 | NSString *show = [NSString stringWithFormat:@"总大小是%lld\n需要从%lld开始下载",self.expectedContentLength,self.currentLength]; 55 | [SVProgressHUD showInfoWithStatus:show maskType:SVProgressHUDMaskTypeBlack]; 56 | [self downLoadFile]; 57 | 58 | } 59 | 60 | #pragma mark - /************************* 下载文件 ***************************/ 61 | - (void)downLoadFile 62 | { 63 | dispatch_async(dispatch_get_global_queue(0, 0), ^{ 64 | NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:self.downLoadUrl cachePolicy:1 timeoutInterval:3.0f]; 65 | 66 | NSString *rangStr = [NSString stringWithFormat:@"bytes=%lld-",self.currentLength]; 67 | 68 | [request setValue:rangStr forHTTPHeaderField:@"Range"]; 69 | 70 | self.downLoadURLConnection = [NSURLConnection connectionWithRequest:request delegate:self]; 71 | 72 | [self.downLoadURLConnection start]; 73 | 74 | self.downLoadRunLoop = CFRunLoopGetCurrent(); 75 | 76 | CFRunLoopRun(); 77 | }); 78 | 79 | } 80 | 81 | #pragma mark - /************************* NSURLConnection代理方法 ***************************/ 82 | #pragma mark 接受到响应 83 | - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 84 | { 85 | self.fileStrem = [[NSOutputStream alloc]initToFileAtPath:self.filePath append:YES]; 86 | NSLog(@"temp --- %@",self.filePath); 87 | [self.fileStrem open]; 88 | 89 | } 90 | #pragma mark 接受到数据 91 | - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 92 | { 93 | [self.fileStrem write:data.bytes maxLength:data.length]; 94 | self.currentLength += data.length; 95 | 96 | float progress = (float)self.currentLength/self.expectedContentLength; 97 | 98 | // NSLog(@"=====>%.4f",progress); 99 | if (self.progress) { 100 | self.progress(progress); 101 | } 102 | 103 | } 104 | #pragma mark 结束下载 105 | - (void)connectionDidFinishLoading:(NSURLConnection *)connection 106 | { 107 | [self.fileStrem close]; 108 | CFRunLoopStop(self.downLoadRunLoop); 109 | 110 | if (self.completion) { 111 | dispatch_async(dispatch_get_main_queue(), ^{ 112 | self.completion(self.filePath); 113 | }) ; 114 | } 115 | 116 | } 117 | #pragma mark 遇到错误 118 | - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error 119 | { 120 | [self.fileStrem close]; 121 | CFRunLoopStop(self.downLoadRunLoop); 122 | 123 | if (self.failed) { 124 | self.failed([NSString stringWithFormat:@"%@",error.localizedDescription]); 125 | } 126 | } 127 | 128 | 129 | #pragma mark - /************************* 检测服务器文件信息 ***************************/ 130 | - (void)checkServerFileInfo:(NSURL *)url 131 | { 132 | NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:1 timeoutInterval:20.0f]; // $$$$$ 133 | 134 | request.HTTPMethod = @"HEAD"; 135 | 136 | NSURLResponse *response = nil; 137 | 138 | [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:NULL]; 139 | 140 | // NSLog(@"%@",response); 141 | self.expectedContentLength = response.expectedContentLength; 142 | 143 | self.filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:response.suggestedFilename]; 144 | 145 | return; 146 | } 147 | 148 | #pragma mark - /************************* 检查本地是否存在文件 ***************************/ 149 | - (BOOL)checkLocalFile 150 | { 151 | long long fileSize = 0; 152 | 153 | if ([[NSFileManager defaultManager] fileExistsAtPath:self.filePath]) { 154 | 155 | NSDictionary *attributes = [[NSFileManager defaultManager]attributesOfItemAtPath:self.filePath error:NULL]; 156 | // fileSize = [attributes[NSFileSize] longLongValue]; 157 | fileSize = [attributes fileSize]; 158 | } 159 | 160 | if (fileSize > self.expectedContentLength) { 161 | [[NSFileManager defaultManager] removeItemAtPath:self.filePath error:NULL]; 162 | fileSize = 0; 163 | } 164 | 165 | if (fileSize == self.expectedContentLength) { 166 | NSLog(@"文件已经存在"); 167 | self.progress(1.0); 168 | [SVProgressHUD showInfoWithStatus:@"文件已经存在" maskType:SVProgressHUDMaskTypeBlack]; 169 | 170 | return NO ; 171 | } 172 | 173 | self.currentLength = fileSize; 174 | return YES; 175 | } 176 | 177 | @end 178 | 179 | 180 | //CleanMyMac227.dmg 181 | //1Password51.dmg 182 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // 65 - 网络视频(xml解析) 4 | // 5 | // Created by 董 尚先 on 15-1-14. 6 | // Copyright (c) 2015年 ShangxianDante. All rights reserved. 7 | // 8 | 9 | #import "ViewController.h" 10 | #import "Video.h" 11 | #import "ViewCell.h" 12 | #import "SXDownloaderManager.h" 13 | 14 | @interface ViewController () 15 | 16 | @property(nonatomic,strong) NSArray *arrayList; 17 | 18 | @property(nonatomic,strong) NSMutableArray *videos; 19 | @property(nonatomic,strong) Video *currentVideo; 20 | @property(nonatomic,strong) NSMutableString *temMString; 21 | 22 | @end 23 | 24 | @implementation ViewController 25 | 26 | - (void)viewDidLoad { 27 | [super viewDidLoad]; 28 | [self loadData]; 29 | 30 | // NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).lastObject; 31 | // NSLog(@"%@",path); 32 | } 33 | 34 | - (void)didReceiveMemoryWarning { 35 | [super didReceiveMemoryWarning]; 36 | // Dispose of any resources that can be recreated. 37 | } 38 | //- (NSArray *)arrayList 39 | //{ 40 | // if (_arrayList == nil) { 41 | // _arrayList = [[NSArray alloc]init]; 42 | // } 43 | // return _arrayList; 44 | //} 45 | #pragma mark - /************************* 在set完毕后刷新表格结束菊花 ***************************/ 46 | - (void)setArrayList:(NSArray *)arrayList 47 | { 48 | _arrayList = arrayList; 49 | 50 | [self.tableView reloadData]; 51 | 52 | [self.refreshControl endRefreshing]; 53 | 54 | } 55 | 56 | #pragma mark - /************************* 两个懒加载 ***************************/ 57 | - (NSMutableArray *)videos 58 | { 59 | if (_videos == nil) { 60 | _videos = [[NSMutableArray alloc]init]; 61 | } 62 | return _videos; 63 | } 64 | 65 | - (NSMutableString *)temMString 66 | { 67 | if (_temMString == nil) { 68 | _temMString = [[NSMutableString alloc]init]; 69 | } 70 | return _temMString; 71 | } 72 | 73 | #pragma mark - /************************* TabView数据源方法 ***************************/ 74 | - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 75 | { 76 | return self.arrayList.count; 77 | } 78 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 79 | { 80 | ViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"]; 81 | 82 | Video *video = self.arrayList[indexPath.row]; 83 | 84 | cell.video = video; 85 | 86 | return cell; 87 | 88 | } 89 | - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath 90 | { 91 | return 100; 92 | } 93 | 94 | #pragma mark - /************************* 代理方法点击每行 ***************************/ 95 | - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 96 | { 97 | Video *vv = self.videos[indexPath.row]; 98 | 99 | [[SXDownloaderManager sharedDownloaderManager]downLoadWithURL:vv.fullVideoURL progress:^(float progress) { 100 | dispatch_async(dispatch_get_main_queue(), ^{ 101 | 102 | vv.progress = progress; 103 | [self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone]; 104 | }); 105 | } completion:^(NSString *filePath) { 106 | vv.progress = 1.0; 107 | [self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone]; 108 | } failed:nil]; 109 | } 110 | 111 | #pragma mark - /************************* 下载数据 ***************************/ 112 | - (IBAction)loadData{ 113 | // NSURL *url = [NSURL URLWithString:@"http://localhost/vvv.xml"]; 114 | // NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:1 timeoutInterval:3.0]; 115 | // [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) { 116 | // 117 | // NSXMLParser *parser = [[NSXMLParser alloc]initWithData:data]; // $$$$$ 118 | // 119 | // parser.delegate = self; 120 | // [parser parse]; 121 | // }]; 122 | 123 | NSString *path = [[NSBundle mainBundle] pathForResource:@"vvv.xml" ofType:nil]; 124 | NSData *data = [NSData dataWithContentsOfFile:path]; 125 | NSXMLParser *parser = [[NSXMLParser alloc]initWithData:data]; 126 | parser.delegate = self; 127 | [parser parse]; 128 | } 129 | 130 | #pragma mark - /************************* NSXMLPaeser的代理方法 ***************************/ 131 | 132 | #pragma mark ****开始解析 133 | - (void)parserDidStartDocument:(NSXMLParser *)parser 134 | { 135 | // NSLog(@"开始搞"); 136 | [self.videos removeAllObjects]; 137 | } 138 | 139 | #pragma mark ****遇到开始符号 140 | - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict // 虽然是在主队列主线程运行的，但是是异步的 不会卡着 141 | { 142 | // NSLog(@"开始 ---%@ %@",elementName,attributeDict); 143 | if ([elementName isEqualToString:@"video"]) { 144 | self.currentVideo = [[Video alloc]init]; 145 | 146 | self.currentVideo.videoId = @([attributeDict[@"videoId"] intValue]); // $$$$$ 147 | } 148 | [self.temMString setString:@""]; 149 | } 150 | 151 | #pragma mark ****解析干货字符串 152 | - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string 153 | { 154 | // NSLog(@"%@",string); 155 | [self.temMString appendString:string]; 156 | } 157 | 158 | #pragma mark ****遇到结束符号 159 | - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName 160 | { 161 | // NSLog(@"结束 ---%@",elementName); 162 | if ([elementName isEqualToString:@"video"]) { 163 | [self.videos addObject:self.currentVideo]; 164 | }else if (![elementName isEqualToString:@"videos"]){ 165 | [self.currentVideo setValue:self.temMString forKey:elementName]; 166 | } 167 | } 168 | 169 | #pragma mark ****文档解析结束 170 | - (void)parserDidEndDocument:(NSXMLParser *)parser 171 | { 172 | // NSLog(@"全部搞结束"); 173 | // NSLog(@"%@",[NSThread currentThread]); 174 | // NSLog(@"%@",self.videos); 175 | dispatch_async(dispatch_get_main_queue(), ^{ 176 | self.arrayList = self.videos; 177 | }); 178 | } 179 | 180 | #pragma mark ****遇到错误怎么办？ 181 | - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError 182 | { 183 | NSLog(@"发生了错误 %@",parseError); 184 | } 185 | 186 | 187 | @end 188 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | * 获取当前图像的 URL 50 | * 51 | * Note that because of the limitations of categories this property can get out of sync 52 | * if you use sd_setImage: directly. 53 | */ 54 | - (NSURL *)sd_imageURL; 55 | 56 | /** 57 | * Set the imageView `image` with an `url`. 58 | * 59 | * The download is asynchronous and cached. 60 | * 61 | * @param url The url for the image. 62 | */ 63 | - (void)sd_setImageWithURL:(NSURL *)url; 64 | 65 | /** 66 | * Set the imageView `image` with an `url` and a placeholder. 67 | * 68 | * The download is asynchronous and cached. 69 | * 70 | * @param url The url for the image. 71 | * @param placeholder The image to be set initially, until the image request finishes. 72 | * @see sd_setImageWithURL:placeholderImage:options: 73 | */ 74 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder; 75 | 76 | /** 77 | * Set the imageView `image` with an `url`, placeholder and custom options. 78 | * 79 | * The download is asynchronous and cached. 80 | * 81 | * @param url The url for the image. 82 | * @param placeholder The image to be set initially, until the image request finishes. 83 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 84 | */ 85 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 86 | 87 | /** 88 | * Set the imageView `image` with an `url`. 89 | * 90 | * The download is asynchronous and cached. 91 | * 92 | * @param url The url for the image. 93 | * @param completedBlock A block called when operation has been completed. This block has no return value 94 | * and takes the requested UIImage as first parameter. In case of error the image parameter 95 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 96 | * indicating if the image was retrived from the local cache or from the network. 97 | * The fourth parameter is the original image url. 98 | */ 99 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock; 100 | 101 | /** 102 | * Set the imageView `image` with an `url`, placeholder. 103 | * 104 | * The download is asynchronous and cached. 105 | * 106 | * @param url The url for the image. 107 | * @param placeholder The image to be set initially, until the image request finishes. 108 | * @param completedBlock A block called when operation has been completed. This block has no return value 109 | * and takes the requested UIImage as first parameter. In case of error the image parameter 110 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 111 | * indicating if the image was retrived from the local cache or from the network. 112 | * The fourth parameter is the original image url. 113 | */ 114 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 115 | 116 | /** 117 | * Set the imageView `image` with an `url`, placeholder and custom options. 118 | * 119 | * The download is asynchronous and cached. 120 | * 121 | * @param url The url for the image. 122 | * @param placeholder The image to be set initially, until the image request finishes. 123 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 124 | * @param completedBlock A block called when operation has been completed. This block has no return value 125 | * and takes the requested UIImage as first parameter. In case of error the image parameter 126 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 127 | * indicating if the image was retrived from the local cache or from the network. 128 | * The fourth parameter is the original image url. 129 | */ 130 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 131 | 132 | /** 133 | * Set the imageView `image` with an `url`, placeholder and custom options. 134 | * 135 | * The download is asynchronous and cached. 136 | * 137 | * @param url The url for the image. 138 | * @param placeholder The image to be set initially, until the image request finishes. 139 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 140 | * @param progressBlock A block called while image is downloading 141 | * @param completedBlock A block called when operation has been completed. This block has no return value 142 | * and takes the requested UIImage as first parameter. In case of error the image parameter 143 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 144 | * indicating if the image was retrived from the local cache or from the network. 145 | * The fourth parameter is the original image url. 146 | */ 147 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 148 | 149 | /** 150 | * Set the imageView `image` with an `url` and a optionaly placeholder image. 151 | * 152 | * The download is asynchronous and cached. 153 | * 154 | * @param url The url for the image. 155 | * @param placeholder The image to be set initially, until the image request finishes. 156 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 157 | * @param progressBlock A block called while image is downloading 158 | * @param completedBlock A block called when operation has been completed. This block has no return value 159 | * and takes the requested UIImage as first parameter. In case of error the image parameter 160 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 161 | * indicating if the image was retrived from the local cache or from the network. 162 | * The fourth parameter is the original image url. 163 | */ 164 | - (void)sd_setImageWithPreviousCachedImageWithURL:(NSURL *)url andPlaceholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 165 | 166 | /** 167 | * Download an array of images and starts them in an animation loop 168 | * 169 | * @param arrayOfURLs An array of NSURL 170 | */ 171 | - (void)sd_setAnimationImagesWithURLs:(NSArray *)arrayOfURLs; 172 | 173 | /** 174 | * Cancel the current download 175 | */ 176 | - (void)sd_cancelCurrentImageLoad; 177 | 178 | - (void)sd_cancelCurrentAnimationImagesLoad; 179 | 180 | @end 181 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/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 | 28 | 34 | 40 | 51 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | -------------------------------------------------------------------------------- /77 - 多个文件同时下载/65 - 网络视频(xml解析)/SDWebImage/SDWebImageManager.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 "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 | if (![self.failedURLs containsObject:url]) { 198 | [self.failedURLs addObject:url]; 199 | } 200 | } 201 | } 202 | } 203 | else { 204 | BOOL cacheOnDisk = !(options & SDWebImageCacheMemoryOnly); 205 | 206 | if (options & SDWebImageRefreshCached && image && !downloadedImage) { 207 | // Image refresh hit the NSURLCache cache, do not call the completion block 208 | } 209 | else if (downloadedImage && (!downloadedImage.images || (options & SDWebImageTransformAnimatedImage)) && [self.delegate respondsToSelector:@selector(imageManager:transformDownloadedImage:withURL:)]) { 210 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{ 211 | UIImage *transformedImage = [self.delegate imageManager:self transformDownloadedImage:downloadedImage withURL:url]; 212 | 213 | if (transformedImage && finished) { 214 | BOOL imageWasTransformed = ![transformedImage isEqual:downloadedImage]; 215 | [self.imageCache storeImage:transformedImage recalculateFromImage:imageWasTransformed imageData:data forKey:key toDisk:cacheOnDisk]; 216 | } 217 | 218 | dispatch_main_sync_safe(^{ 219 | if (!weakOperation.isCancelled) { 220 | completedBlock(transformedImage, nil, SDImageCacheTypeNone, finished, url); 221 | } 222 | }); 223 | }); 224 | } 225 | else { 226 | if (downloadedImage && finished) { 227 | [self.imageCache storeImage:downloadedImage recalculateFromImage:NO imageData:data forKey:key toDisk:cacheOnDisk]; 228 | } 229 | 230 | dispatch_main_sync_safe(^{ 231 | if (!weakOperation.isCancelled) { 232 | completedBlock(downloadedImage, nil, SDImageCacheTypeNone, finished, url); 233 | } 234 | }); 235 | } 236 | } 237 | 238 | if (finished) { 239 | @synchronized (self.runningOperations) { 240 | [self.runningOperations removeObject:operation]; 241 | } 242 | } 243 | }]; 244 | operation.cancelBlock = ^{ 245 | [subOperation cancel]; 246 | 247 | @synchronized (self.runningOperations) { 248 | [self.runningOperations removeObject:weakOperation]; 249 | } 250 | }; 251 | } 252 | else if (image) { 253 | dispatch_main_sync_safe(^{ 254 | if (!weakOperation.isCancelled) { 255 | completedBlock(image, nil, cacheType, YES, url); 256 | } 257 | }); 258 | @synchronized (self.runningOperations) { 259 | [self.runningOperations removeObject:operation]; 260 | } 261 | } 262 | else { 263 | // Image not in cache and download disallowed by delegate 264 | dispatch_main_sync_safe(^{ 265 | if (!weakOperation.isCancelled) { 266 | completedBlock(nil, nil, SDImageCacheTypeNone, YES, url); 267 | } 268 | }); 269 | @synchronized (self.runningOperations) { 270 | [self.runningOperations removeObject:operation]; 271 | } 272 | } 273 | }]; 274 | 275 | return operation; 276 | } 277 | 278 | - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url { 279 | if (image && url) { 280 | NSString *key = [self cacheKeyForURL:url]; 281 | [self.imageCache storeImage:image forKey:key toDisk:YES]; 282 | } 283 | } 284 | 285 | - (void)cancelAll { 286 | @synchronized (self.runningOperations) { 287 | NSArray *copiedOperations = [self.runningOperations copy]; 288 | [copiedOperations makeObjectsPerformSelector:@selector(cancel)]; 289 | [self.runningOperations removeObjectsInArray:copiedOperations]; 290 | } 291 | } 292 | 293 | - (BOOL)isRunning { 294 | return self.runningOperations.count > 0; 295 | } 296 | 297 | @end 298 | 299 | 300 | @implementation SDWebImageCombinedOperation 301 | 302 | - (void)setCancelBlock:(SDWebImageNoParamsBlock)cancelBlock { 303 | // check if the operation is already cancelled, then we just call the cancelBlock 304 | if (self.isCancelled) { 305 | if (cancelBlock) { 306 | cancelBlock(); 307 | } 308 | _cancelBlock = nil; // don't forget to nil the cancelBlock, otherwise we will get crashes 309 | } else { 310 | _cancelBlock = [cancelBlock copy]; 311 | } 312 | } 313 | 314 | - (void)cancel { 315 | self.cancelled = YES; 316 | if (self.cacheOperation) { 317 | [self.cacheOperation cancel]; 318 | self.cacheOperation = nil; 319 | } 320 | if (self.cancelBlock) { 321 | self.cancelBlock(); 322 | 323 | // TODO: this is a temporary fix to #809. 324 | // Until we can figure the exact cause of the crash, going with the ivar instead of the setter 325 | // self.cancelBlock = nil; 326 | _cancelBlock = nil; 327 | } 328 | } 329 | 330 | @end 331 | --------------------------------------------------------------------------------