├── Grid-List.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcuserdata │ │ └── LeeJay.xcuserdatad │ │ └── UserInterfaceState.xcuserstate └── xcuserdata │ └── LeeJay.xcuserdatad │ ├── xcdebugger │ └── Breakpoints_v2.xcbkptlist │ └── xcschemes │ ├── Grid-List.xcscheme │ └── xcschememanagement.plist ├── Grid-List ├── AppDelegate.h ├── AppDelegate.m ├── Assets.xcassets │ ├── AppIcon.appiconset │ │ └── Contents.json │ ├── Contents.json │ ├── product_list_grid_btn.imageset │ │ ├── Contents.json │ │ └── product_list_grid_btn@2x.png │ └── product_list_list_btn.imageset │ │ ├── Contents.json │ │ └── product_list_list_btn@2x.png ├── Base.lproj │ └── Main.storyboard ├── GridListCollectionViewCell.h ├── GridListCollectionViewCell.m ├── GridListModel.h ├── GridListModel.m ├── Info.plist ├── LaunchScreen.storyboard ├── NSObject+Property.h ├── NSObject+Property.m ├── SDWebImage │ ├── NSData+ImageContentType.h │ ├── NSData+ImageContentType.m │ ├── SDImageCache.h │ ├── SDImageCache.m │ ├── SDWebImageCompat.h │ ├── SDWebImageCompat.m │ ├── SDWebImageDecoder.h │ ├── SDWebImageDecoder.m │ ├── SDWebImageDownloader.h │ ├── SDWebImageDownloader.m │ ├── SDWebImageDownloaderOperation.h │ ├── SDWebImageDownloaderOperation.m │ ├── SDWebImageManager.h │ ├── SDWebImageManager.m │ ├── SDWebImageOperation.h │ ├── SDWebImagePrefetcher.h │ ├── SDWebImagePrefetcher.m │ ├── UIButton+WebCache.h │ ├── UIButton+WebCache.m │ ├── UIImage+GIF.h │ ├── UIImage+GIF.m │ ├── UIImage+MultiFormat.h │ ├── UIImage+MultiFormat.m │ ├── UIImageView+HighlightedWebCache.h │ ├── UIImageView+HighlightedWebCache.m │ ├── UIImageView+WebCache.h │ ├── UIImageView+WebCache.m │ ├── UIView+WebCacheOperation.h │ └── UIView+WebCacheOperation.m ├── ViewController.h ├── ViewController.m ├── main.m └── product.json ├── README.md └── Untitled.gif /Grid-List.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Grid-List.xcodeproj/project.xcworkspace/xcuserdata/LeeJay.xcuserdatad/UserInterfaceState.xcuserstate: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leejayID/List2Grid/bb5eb39f2154c8fde81454589cc3061a2dab75ab/Grid-List.xcodeproj/project.xcworkspace/xcuserdata/LeeJay.xcuserdatad/UserInterfaceState.xcuserstate -------------------------------------------------------------------------------- /Grid-List.xcodeproj/xcuserdata/LeeJay.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | -------------------------------------------------------------------------------- /Grid-List.xcodeproj/xcuserdata/LeeJay.xcuserdatad/xcschemes/Grid-List.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 32 | 33 | 39 | 40 | 41 | 42 | 43 | 44 | 54 | 56 | 62 | 63 | 64 | 65 | 66 | 67 | 73 | 75 | 81 | 82 | 83 | 84 | 86 | 87 | 90 | 91 | 92 | -------------------------------------------------------------------------------- /Grid-List.xcodeproj/xcuserdata/LeeJay.xcuserdatad/xcschemes/xcschememanagement.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | SchemeUserState 6 | 7 | Grid-List.xcscheme 8 | 9 | orderHint 10 | 0 11 | 12 | 13 | SuppressBuildableAutocreation 14 | 15 | 2F9F5AC21DB4A638000303F4 16 | 17 | primary 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /Grid-List/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | @end 16 | 17 | -------------------------------------------------------------------------------- /Grid-List/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 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 | 24 | - (void)applicationWillResignActive:(UIApplication *)application { 25 | // 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. 26 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 27 | } 28 | 29 | 30 | - (void)applicationDidEnterBackground:(UIApplication *)application { 31 | // 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. 32 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 33 | } 34 | 35 | 36 | - (void)applicationWillEnterForeground:(UIApplication *)application { 37 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 38 | } 39 | 40 | 41 | - (void)applicationDidBecomeActive:(UIApplication *)application { 42 | // 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. 43 | } 44 | 45 | 46 | - (void)applicationWillTerminate:(UIApplication *)application { 47 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 48 | } 49 | 50 | 51 | @end 52 | -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "20x20", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "20x20", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "29x29", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "29x29", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "40x40", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "40x40", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "size" : "60x60", 36 | "scale" : "2x" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "size" : "60x60", 41 | "scale" : "3x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "20x20", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "20x20", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "29x29", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "29x29", 61 | "scale" : "2x" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "size" : "40x40", 66 | "scale" : "1x" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "size" : "40x40", 71 | "scale" : "2x" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "size" : "76x76", 76 | "scale" : "1x" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "size" : "76x76", 81 | "scale" : "2x" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "size" : "83.5x83.5", 86 | "scale" : "2x" 87 | } 88 | ], 89 | "info" : { 90 | "version" : 1, 91 | "author" : "xcode" 92 | } 93 | } -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/product_list_grid_btn.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "filename" : "product_list_grid_btn@2x.png", 10 | "scale" : "2x" 11 | }, 12 | { 13 | "idiom" : "universal", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/product_list_grid_btn.imageset/product_list_grid_btn@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leejayID/List2Grid/bb5eb39f2154c8fde81454589cc3061a2dab75ab/Grid-List/Assets.xcassets/product_list_grid_btn.imageset/product_list_grid_btn@2x.png -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/product_list_list_btn.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "filename" : "product_list_list_btn@2x.png", 10 | "scale" : "2x" 11 | }, 12 | { 13 | "idiom" : "universal", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /Grid-List/Assets.xcassets/product_list_list_btn.imageset/product_list_list_btn@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leejayID/List2Grid/bb5eb39f2154c8fde81454589cc3061a2dab75ab/Grid-List/Assets.xcassets/product_list_list_btn.imageset/product_list_list_btn@2x.png -------------------------------------------------------------------------------- /Grid-List/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 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | -------------------------------------------------------------------------------- /Grid-List/GridListCollectionViewCell.h: -------------------------------------------------------------------------------- 1 | // 2 | // GridListCollectionViewCell.h 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import 10 | 11 | #define kCellIdentifier_CollectionViewCell @"GridListCollectionViewCell" 12 | 13 | @class GridListModel; 14 | 15 | @interface GridListCollectionViewCell : UICollectionViewCell 16 | 17 | /** 18 | 0：列表视图，1：格子视图 19 | */ 20 | @property (nonatomic, assign) BOOL isGrid; 21 | 22 | @property (nonatomic, strong) GridListModel *model; 23 | 24 | @end 25 | -------------------------------------------------------------------------------- /Grid-List/GridListCollectionViewCell.m: -------------------------------------------------------------------------------- 1 | // 2 | // GridListCollectionViewCell.m 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import "GridListCollectionViewCell.h" 10 | #import "GridListModel.h" 11 | #import "UIImageView+WebCache.h" 12 | 13 | #define ScreenWidth ([UIScreen mainScreen].bounds.size.width) 14 | 15 | @interface GridListCollectionViewCell () 16 | 17 | @property (nonatomic, strong) UIImageView *imageV; 18 | @property (nonatomic, strong) UILabel *titleLabel; 19 | @property (nonatomic, strong) UILabel *priceLabel; 20 | 21 | @end 22 | 23 | @implementation GridListCollectionViewCell 24 | 25 | - (instancetype)initWithFrame:(CGRect)frame 26 | { 27 | self = [super initWithFrame:frame]; 28 | if (self) { 29 | [self configureUI]; 30 | } 31 | return self; 32 | } 33 | 34 | - (void)configureUI 35 | { 36 | _imageV = [[UIImageView alloc] initWithFrame:CGRectZero]; 37 | [self.contentView addSubview:_imageV]; 38 | 39 | _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero]; 40 | _titleLabel.numberOfLines = 0; 41 | _titleLabel.font = [UIFont boldSystemFontOfSize:14]; 42 | [self.contentView addSubview:_titleLabel]; 43 | 44 | _priceLabel = [[UILabel alloc] initWithFrame:CGRectZero]; 45 | _priceLabel.textColor = [UIColor redColor]; 46 | _priceLabel.font = [UIFont systemFontOfSize:16]; 47 | [self.contentView addSubview:_priceLabel]; 48 | } 49 | 50 | - (void)setIsGrid:(BOOL)isGrid 51 | { 52 | _isGrid = isGrid; 53 | 54 | if (isGrid) { 55 | _imageV.frame = CGRectMake(5, 5, self.bounds.size.width - 60, self.bounds.size.width - 60); 56 | _titleLabel.frame = CGRectMake(5, self.bounds.size.width - 45, ScreenWidth/2, 20); 57 | _priceLabel.frame = CGRectMake(5, self.bounds.size.width - 20, ScreenWidth/2, 20); 58 | } else { 59 | _imageV.frame = CGRectMake(5, 5, self.bounds.size.height - 10, self.bounds.size.height - 10); 60 | _titleLabel.frame = CGRectMake(self.bounds.size.height + 10, 0, ScreenWidth/2, self.bounds.size.height - 20);; 61 | _priceLabel.frame = CGRectMake(self.bounds.size.height + 10, self.bounds.size.height - 30, ScreenWidth/2, 20);; 62 | } 63 | } 64 | 65 | - (void)setModel:(GridListModel *)model 66 | { 67 | _model = model; 68 | 69 | [_imageV sd_setImageWithURL:[NSURL URLWithString:model.imageurl]]; 70 | _titleLabel.text = model.wname; 71 | _priceLabel.text = [NSString stringWithFormat:@"￥%.2f",model.jdPrice]; 72 | } 73 | 74 | @end 75 | -------------------------------------------------------------------------------- /Grid-List/GridListModel.h: -------------------------------------------------------------------------------- 1 | // 2 | // GridListModel.h 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import 10 | 11 | @interface GridListModel : NSObject 12 | 13 | @property (nonatomic, strong) NSString *imageurl; 14 | @property (nonatomic, strong) NSString *wname; 15 | @property (nonatomic, assign) float jdPrice; 16 | @property (nonatomic, assign) int totalCount; 17 | 18 | @end 19 | -------------------------------------------------------------------------------- /Grid-List/GridListModel.m: -------------------------------------------------------------------------------- 1 | // 2 | // GridListModel.m 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import "GridListModel.h" 10 | 11 | @implementation GridListModel 12 | 13 | @end 14 | -------------------------------------------------------------------------------- /Grid-List/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | NSAppTransportSecurity 45 | 46 | NSAllowsArbitraryLoads 47 | 48 | 49 | 50 | 51 | -------------------------------------------------------------------------------- /Grid-List/LaunchScreen.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 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | -------------------------------------------------------------------------------- /Grid-List/NSObject+Property.h: -------------------------------------------------------------------------------- 1 | // 2 | // NSObject+Property.h 3 | // RuntimeDemo 4 | // 5 | // Created by LeeJay on 16/8/9. 6 | // Copyright © 2016年 LeeJay. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import 10 | 11 | @protocol KeyValue 12 | 13 | @optional 14 | /** 15 | * 数组中需要转换的模型类 16 | * 17 | * @return 字典中的key是数组属性名，value是数组中存放模型的Class（Class类型或者NSString类型） 18 | */ 19 | + (NSDictionary *)objectClassInArray; 20 | 21 | /** 22 | * 将属性名换为其他key去字典中取值 23 | * 24 | * @return 字典中的key是属性名，value是从字典中取值用的key 25 | */ 26 | + (NSDictionary *)replacedKeyFromPropertyName; 27 | 28 | @end 29 | 30 | @interface NSObject (Property) 31 | 32 | + (instancetype)objectWithDictionary:(NSDictionary *)dictionary; 33 | 34 | @end 35 | -------------------------------------------------------------------------------- /Grid-List/NSObject+Property.m: -------------------------------------------------------------------------------- 1 | // 2 | // NSObject+Property.m 3 | // RuntimeDemo 4 | // 5 | // Created by LeeJay on 16/8/9. 6 | // Copyright © 2016年 LeeJay. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import "NSObject+Property.h" 10 | #import 11 | 12 | @implementation NSObject (Property) 13 | 14 | + (instancetype)objectWithDictionary:(NSDictionary *)dictionary 15 | { 16 | id obj = [[self alloc] init]; 17 | 18 | // 获取所有的成员变量 19 | unsigned int count; 20 | Ivar *ivars = class_copyIvarList(self, &count); 21 | 22 | for (unsigned int i = 0; i < count; i++) 23 | { 24 | Ivar ivar = ivars[i]; 25 | 26 | // 取出的成员变量，去掉下划线 27 | NSString *ivarName = [NSString stringWithUTF8String:ivar_getName(ivar)]; 28 | NSString *key = [ivarName substringFromIndex:1]; 29 | 30 | id value = dictionary[key]; 31 | 32 | // 当这个值为空时，判断一下是否执行了replacedKeyFromPropertyName协议，如果执行了替换原来的key查值 33 | if (!value) 34 | { 35 | if ([self respondsToSelector:@selector(replacedKeyFromPropertyName)]) 36 | { 37 | NSString *replaceKey = [self replacedKeyFromPropertyName][key]; 38 | value = dictionary[replaceKey]; 39 | } 40 | } 41 | 42 | // 字典嵌套字典 43 | if ([value isKindOfClass:[NSDictionary class]]) 44 | { 45 | NSString *type = [NSString stringWithUTF8String:ivar_getTypeEncoding(ivar)]; 46 | NSRange range = [type rangeOfString:@"\""]; 47 | type = [type substringFromIndex:range.location + range.length]; 48 | range = [type rangeOfString:@"\""]; 49 | type = [type substringToIndex:range.location]; 50 | Class modelClass = NSClassFromString(type); 51 | 52 | if (modelClass) 53 | { 54 | value = [modelClass objectWithDictionary:value]; 55 | } 56 | } 57 | 58 | // 字典嵌套数组 59 | if ([value isKindOfClass:[NSArray class]]) 60 | { 61 | if ([self respondsToSelector:@selector(objectClassInArray)]) 62 | { 63 | NSMutableArray *models = [NSMutableArray array]; 64 | 65 | NSString *type = [self objectClassInArray][key]; 66 | Class classModel = NSClassFromString(type); 67 | for (NSDictionary *dict in value) 68 | { 69 | id model = [classModel objectWithDictionary:dict]; 70 | [models addObject:model]; 71 | } 72 | value = models; 73 | } 74 | } 75 | 76 | if (value) 77 | { 78 | [obj setValue:value forKey:key]; 79 | } 80 | } 81 | 82 | // 释放ivars 83 | free(ivars); 84 | 85 | return obj; 86 | } 87 | 88 | @end 89 | -------------------------------------------------------------------------------- /Grid-List/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 | 21 | 22 | @interface NSData (ImageContentTypeDeprecated) 23 | 24 | + (NSString *)contentTypeForImageData:(NSData *)data __deprecated_msg("Use `sd_contentTypeForImageData:`"); 25 | 26 | @end 27 | -------------------------------------------------------------------------------- /Grid-List/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 | 42 | 43 | @implementation NSData (ImageContentTypeDeprecated) 44 | 45 | + (NSString *)contentTypeForImageData:(NSData *)data { 46 | return [self sd_contentTypeForImageData:data]; 47 | } 48 | 49 | @end 50 | -------------------------------------------------------------------------------- /Grid-List/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 | * Decompressing images that are downloaded and cached can improve performance but can consume lot of memory. 41 | * Defaults to YES. Set this to NO if you are experiencing a crash due to excessive memory consumption. 42 | */ 43 | @property (assign, nonatomic) BOOL shouldDecompressImages; 44 | 45 | /** 46 | * disable iCloud backup [defaults to YES] 47 | */ 48 | @property (assign, nonatomic) BOOL shouldDisableiCloud; 49 | 50 | /** 51 | * use memory cache [defaults to YES] 52 | */ 53 | @property (assign, nonatomic) BOOL shouldCacheImagesInMemory; 54 | 55 | /** 56 | * The maximum "total cost" of the in-memory image cache. The cost function is the number of pixels held in memory. 57 | */ 58 | @property (assign, nonatomic) NSUInteger maxMemoryCost; 59 | 60 | /** 61 | * The maximum number of objects the cache should hold. 62 | */ 63 | @property (assign, nonatomic) NSUInteger maxMemoryCountLimit; 64 | 65 | /** 66 | * The maximum length of time to keep an image in the cache, in seconds 67 | */ 68 | @property (assign, nonatomic) NSInteger maxCacheAge; 69 | 70 | /** 71 | * The maximum size of the cache, in bytes. 72 | */ 73 | @property (assign, nonatomic) NSUInteger maxCacheSize; 74 | 75 | /** 76 | * Returns global shared cache instance 77 | * 78 | * @return SDImageCache global instance 79 | */ 80 | + (SDImageCache *)sharedImageCache; 81 | 82 | /** 83 | * Init a new cache store with a specific namespace 84 | * 85 | * @param ns The namespace to use for this cache store 86 | */ 87 | - (id)initWithNamespace:(NSString *)ns; 88 | 89 | /** 90 | * Init a new cache store with a specific namespace and directory 91 | * 92 | * @param ns The namespace to use for this cache store 93 | * @param directory Directory to cache disk images in 94 | */ 95 | - (id)initWithNamespace:(NSString *)ns diskCacheDirectory:(NSString *)directory; 96 | 97 | -(NSString *)makeDiskCachePath:(NSString*)fullNamespace; 98 | 99 | /** 100 | * Add a read-only cache path to search for images pre-cached by SDImageCache 101 | * Useful if you want to bundle pre-loaded images with your app 102 | * 103 | * @param path The path to use for this read-only cache path 104 | */ 105 | - (void)addReadOnlyCachePath:(NSString *)path; 106 | 107 | /** 108 | * Store an image into memory and disk cache at the given key. 109 | * 110 | * @param image The image to store 111 | * @param key The unique image cache key, usually it's image absolute URL 112 | */ 113 | - (void)storeImage:(UIImage *)image forKey:(NSString *)key; 114 | 115 | /** 116 | * Store an image into memory and optionally disk cache at the given key. 117 | * 118 | * @param image The image to store 119 | * @param key The unique image cache key, usually it's image absolute URL 120 | * @param toDisk Store the image to disk cache if YES 121 | */ 122 | - (void)storeImage:(UIImage *)image forKey:(NSString *)key toDisk:(BOOL)toDisk; 123 | 124 | /** 125 | * Store an image into memory and optionally disk cache at the given key. 126 | * 127 | * @param image The image to store 128 | * @param recalculate BOOL indicates if imageData can be used or a new data should be constructed from the UIImage 129 | * @param imageData The image data as returned by the server, this representation will be used for disk storage 130 | * instead of converting the given image object into a storable/compressed image format in order 131 | * to save quality and CPU 132 | * @param key The unique image cache key, usually it's image absolute URL 133 | * @param toDisk Store the image to disk cache if YES 134 | */ 135 | - (void)storeImage:(UIImage *)image recalculateFromImage:(BOOL)recalculate imageData:(NSData *)imageData forKey:(NSString *)key toDisk:(BOOL)toDisk; 136 | 137 | /** 138 | * Query the disk cache asynchronously. 139 | * 140 | * @param key The unique key used to store the wanted image 141 | */ 142 | - (NSOperation *)queryDiskCacheForKey:(NSString *)key done:(SDWebImageQueryCompletedBlock)doneBlock; 143 | 144 | /** 145 | * Query the memory cache synchronously. 146 | * 147 | * @param key The unique key used to store the wanted image 148 | */ 149 | - (UIImage *)imageFromMemoryCacheForKey:(NSString *)key; 150 | 151 | /** 152 | * Query the disk cache synchronously after checking the memory cache. 153 | * 154 | * @param key The unique key used to store the wanted image 155 | */ 156 | - (UIImage *)imageFromDiskCacheForKey:(NSString *)key; 157 | 158 | /** 159 | * Remove the image from memory and disk cache synchronously 160 | * 161 | * @param key The unique image cache key 162 | */ 163 | - (void)removeImageForKey:(NSString *)key; 164 | 165 | 166 | /** 167 | * Remove the image from memory and disk cache asynchronously 168 | * 169 | * @param key The unique image cache key 170 | * @param completion An block that should be executed after the image has been removed (optional) 171 | */ 172 | - (void)removeImageForKey:(NSString *)key withCompletion:(SDWebImageNoParamsBlock)completion; 173 | 174 | /** 175 | * Remove the image from memory and optionally disk cache asynchronously 176 | * 177 | * @param key The unique image cache key 178 | * @param fromDisk Also remove cache entry from disk if YES 179 | */ 180 | - (void)removeImageForKey:(NSString *)key fromDisk:(BOOL)fromDisk; 181 | 182 | /** 183 | * Remove the image from memory and optionally disk cache asynchronously 184 | * 185 | * @param key The unique image cache key 186 | * @param fromDisk Also remove cache entry from disk if YES 187 | * @param completion An block that should be executed after the image has been removed (optional) 188 | */ 189 | - (void)removeImageForKey:(NSString *)key fromDisk:(BOOL)fromDisk withCompletion:(SDWebImageNoParamsBlock)completion; 190 | 191 | /** 192 | * Clear all memory cached images 193 | */ 194 | - (void)clearMemory; 195 | 196 | /** 197 | * Clear all disk cached images. Non-blocking method - returns immediately. 198 | * @param completion An block that should be executed after cache expiration completes (optional) 199 | */ 200 | - (void)clearDiskOnCompletion:(SDWebImageNoParamsBlock)completion; 201 | 202 | /** 203 | * Clear all disk cached images 204 | * @see clearDiskOnCompletion: 205 | */ 206 | - (void)clearDisk; 207 | 208 | /** 209 | * Remove all expired cached image from disk. Non-blocking method - returns immediately. 210 | * @param completionBlock An block that should be executed after cache expiration completes (optional) 211 | */ 212 | - (void)cleanDiskWithCompletionBlock:(SDWebImageNoParamsBlock)completionBlock; 213 | 214 | /** 215 | * Remove all expired cached image from disk 216 | * @see cleanDiskWithCompletionBlock: 217 | */ 218 | - (void)cleanDisk; 219 | 220 | /** 221 | * Get the size used by the disk cache 222 | */ 223 | - (NSUInteger)getSize; 224 | 225 | /** 226 | * Get the number of images in the disk cache 227 | */ 228 | - (NSUInteger)getDiskCount; 229 | 230 | /** 231 | * Asynchronously calculate the disk cache's size. 232 | */ 233 | - (void)calculateSizeWithCompletionBlock:(SDWebImageCalculateSizeBlock)completionBlock; 234 | 235 | /** 236 | * Async check if image exists in disk cache already (does not load the image) 237 | * 238 | * @param key the key describing the url 239 | * @param completionBlock the block to be executed when the check is done. 240 | * @note the completion block will be always executed on the main queue 241 | */ 242 | - (void)diskImageExistsWithKey:(NSString *)key completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 243 | 244 | /** 245 | * Check if image exists in disk cache already (does not load the image) 246 | * 247 | * @param key the key describing the url 248 | * 249 | * @return YES if an image exists for the given key 250 | */ 251 | - (BOOL)diskImageExistsWithKey:(NSString *)key; 252 | 253 | /** 254 | * Get the cache path for a certain key (needs the cache path root folder) 255 | * 256 | * @param key the key (can be obtained from url using cacheKeyForURL) 257 | * @param path the cache path root folder 258 | * 259 | * @return the cache path 260 | */ 261 | - (NSString *)cachePathForKey:(NSString *)key inPath:(NSString *)path; 262 | 263 | /** 264 | * Get the default cache path for a certain key 265 | * 266 | * @param key the key (can be obtained from url using cacheKeyForURL) 267 | * 268 | * @return the default cache path 269 | */ 270 | - (NSString *)defaultCachePathForKey:(NSString *)key; 271 | 272 | @end 273 | -------------------------------------------------------------------------------- /Grid-List/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 != 20000 && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_5_0 17 | #error SDWebImage doesn't support Deployment 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 | extern NSString *const SDWebImageErrorDomain; 59 | 60 | #define dispatch_main_sync_safe(block)\ 61 | if ([NSThread isMainThread]) {\ 62 | block();\ 63 | } else {\ 64 | dispatch_sync(dispatch_get_main_queue(), block);\ 65 | } 66 | 67 | #define dispatch_main_async_safe(block)\ 68 | if ([NSThread isMainThread]) {\ 69 | block();\ 70 | } else {\ 71 | dispatch_async(dispatch_get_main_queue(), block);\ 72 | } 73 | -------------------------------------------------------------------------------- /Grid-List/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 = [UIScreen mainScreen].scale; 32 | if (key.length >= 8) { 33 | NSRange range = [key rangeOfString:@"@2x."]; 34 | if (range.location != NSNotFound) { 35 | scale = 2.0; 36 | } 37 | 38 | range = [key rangeOfString:@"@3x."]; 39 | if (range.location != NSNotFound) { 40 | scale = 3.0; 41 | } 42 | } 43 | 44 | UIImage *scaledImage = [[UIImage alloc] initWithCGImage:image.CGImage scale:scale orientation:image.imageOrientation]; 45 | image = scaledImage; 46 | } 47 | return image; 48 | } 49 | } 50 | 51 | NSString *const SDWebImageErrorDomain = @"SDWebImageErrorDomain"; 52 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/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 | // while downloading huge amount of images 17 | // autorelease the bitmap context 18 | // and all vars to help system to free memory 19 | // when there are memory warning. 20 | // on iOS7, do not forget to call 21 | // [[SDImageCache sharedImageCache] clearMemory]; 22 | @autoreleasepool{ 23 | // do not decode animated images 24 | if (image.images) { return image; } 25 | 26 | CGImageRef imageRef = image.CGImage; 27 | 28 | CGImageAlphaInfo alpha = CGImageGetAlphaInfo(imageRef); 29 | BOOL anyAlpha = (alpha == kCGImageAlphaFirst || 30 | alpha == kCGImageAlphaLast || 31 | alpha == kCGImageAlphaPremultipliedFirst || 32 | alpha == kCGImageAlphaPremultipliedLast); 33 | 34 | if (anyAlpha) { return image; } 35 | 36 | size_t width = CGImageGetWidth(imageRef); 37 | size_t height = CGImageGetHeight(imageRef); 38 | 39 | // current 40 | CGColorSpaceModel imageColorSpaceModel = CGColorSpaceGetModel(CGImageGetColorSpace(imageRef)); 41 | CGColorSpaceRef colorspaceRef = CGImageGetColorSpace(imageRef); 42 | 43 | bool unsupportedColorSpace = (imageColorSpaceModel == 0 || imageColorSpaceModel == -1 || imageColorSpaceModel == kCGColorSpaceModelCMYK || imageColorSpaceModel == kCGColorSpaceModelIndexed); 44 | if (unsupportedColorSpace) 45 | colorspaceRef = CGColorSpaceCreateDeviceRGB(); 46 | 47 | CGContextRef context = CGBitmapContextCreate(NULL, width, 48 | height, 49 | CGImageGetBitsPerComponent(imageRef), 50 | 0, 51 | colorspaceRef, 52 | kCGBitmapByteOrderDefault | kCGImageAlphaPremultipliedFirst); 53 | 54 | // Draw the image into the context and retrieve the new image, which will now have an alpha layer 55 | CGContextDrawImage(context, CGRectMake(0, 0, width, height), imageRef); 56 | CGImageRef imageRefWithAlpha = CGBitmapContextCreateImage(context); 57 | UIImage *imageWithAlpha = [UIImage imageWithCGImage:imageRefWithAlpha scale:image.scale orientation:image.imageOrientation]; 58 | 59 | if (unsupportedColorSpace) 60 | CGColorSpaceRelease(colorspaceRef); 61 | 62 | CGContextRelease(context); 63 | CGImageRelease(imageRefWithAlpha); 64 | 65 | return imageWithAlpha; 66 | } 67 | } 68 | 69 | @end 70 | -------------------------------------------------------------------------------- /Grid-List/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 certificates. 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 | typedef NS_ENUM(NSInteger, SDWebImageDownloaderExecutionOrder) { 55 | /** 56 | * Default value. All download operations will execute in queue style (first-in-first-out). 57 | */ 58 | SDWebImageDownloaderFIFOExecutionOrder, 59 | 60 | /** 61 | * All download operations will execute in stack style (last-in-first-out). 62 | */ 63 | SDWebImageDownloaderLIFOExecutionOrder 64 | }; 65 | 66 | extern NSString *const SDWebImageDownloadStartNotification; 67 | extern NSString *const SDWebImageDownloadStopNotification; 68 | 69 | typedef void(^SDWebImageDownloaderProgressBlock)(NSInteger receivedSize, NSInteger expectedSize); 70 | 71 | typedef void(^SDWebImageDownloaderCompletedBlock)(UIImage *image, NSData *data, NSError *error, BOOL finished); 72 | 73 | typedef NSDictionary *(^SDWebImageDownloaderHeadersFilterBlock)(NSURL *url, NSDictionary *headers); 74 | 75 | /** 76 | * Asynchronous downloader dedicated and optimized for image loading. 77 | */ 78 | @interface SDWebImageDownloader : NSObject 79 | 80 | /** 81 | * Decompressing images that are downloaded and cached can improve performance but can consume lot of memory. 82 | * Defaults to YES. Set this to NO if you are experiencing a crash due to excessive memory consumption. 83 | */ 84 | @property (assign, nonatomic) BOOL shouldDecompressImages; 85 | 86 | @property (assign, nonatomic) NSInteger maxConcurrentDownloads; 87 | 88 | /** 89 | * Shows the current amount of downloads that still need to be downloaded 90 | */ 91 | @property (readonly, nonatomic) NSUInteger currentDownloadCount; 92 | 93 | 94 | /** 95 | * The timeout value (in seconds) for the download operation. Default: 15.0. 96 | */ 97 | @property (assign, nonatomic) NSTimeInterval downloadTimeout; 98 | 99 | 100 | /** 101 | * Changes download operations execution order. Default value is `SDWebImageDownloaderFIFOExecutionOrder`. 102 | */ 103 | @property (assign, nonatomic) SDWebImageDownloaderExecutionOrder executionOrder; 104 | 105 | /** 106 | * Singleton method, returns the shared instance 107 | * 108 | * @return global shared instance of downloader class 109 | */ 110 | + (SDWebImageDownloader *)sharedDownloader; 111 | 112 | /** 113 | * Set the default URL credential to be set for request operations. 114 | */ 115 | @property (strong, nonatomic) NSURLCredential *urlCredential; 116 | 117 | /** 118 | * Set username 119 | */ 120 | @property (strong, nonatomic) NSString *username; 121 | 122 | /** 123 | * Set password 124 | */ 125 | @property (strong, nonatomic) NSString *password; 126 | 127 | /** 128 | * Set filter to pick headers for downloading image HTTP request. 129 | * 130 | * This block will be invoked for each downloading image request, returned 131 | * NSDictionary will be used as headers in corresponding HTTP request. 132 | */ 133 | @property (nonatomic, copy) SDWebImageDownloaderHeadersFilterBlock headersFilter; 134 | 135 | /** 136 | * Set a value for a HTTP header to be appended to each download HTTP request. 137 | * 138 | * @param value The value for the header field. Use `nil` value to remove the header. 139 | * @param field The name of the header field to set. 140 | */ 141 | - (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field; 142 | 143 | /** 144 | * Returns the value of the specified HTTP header field. 145 | * 146 | * @return The value associated with the header field field, or `nil` if there is no corresponding header field. 147 | */ 148 | - (NSString *)valueForHTTPHeaderField:(NSString *)field; 149 | 150 | /** 151 | * Sets a subclass of `SDWebImageDownloaderOperation` as the default 152 | * `NSOperation` to be used each time SDWebImage constructs a request 153 | * operation to download an image. 154 | * 155 | * @param operationClass The subclass of `SDWebImageDownloaderOperation` to set 156 | * as default. Passing `nil` will revert to `SDWebImageDownloaderOperation`. 157 | */ 158 | - (void)setOperationClass:(Class)operationClass; 159 | 160 | /** 161 | * Creates a SDWebImageDownloader async downloader instance with a given URL 162 | * 163 | * The delegate will be informed when the image is finish downloaded or an error has happen. 164 | * 165 | * @see SDWebImageDownloaderDelegate 166 | * 167 | * @param url The URL to the image to download 168 | * @param options The options to be used for this download 169 | * @param progressBlock A block called repeatedly while the image is downloading 170 | * @param completedBlock A block called once the download is completed. 171 | * If the download succeeded, the image parameter is set, in case of error, 172 | * error parameter is set with the error. The last parameter is always YES 173 | * if SDWebImageDownloaderProgressiveDownload isn't use. With the 174 | * SDWebImageDownloaderProgressiveDownload option, this block is called 175 | * repeatedly with the partial image object and the finished argument set to NO 176 | * before to be called a last time with the full image and finished argument 177 | * set to YES. In case of error, the finished argument is always YES. 178 | * 179 | * @return A cancellable SDWebImageOperation 180 | */ 181 | - (id )downloadImageWithURL:(NSURL *)url 182 | options:(SDWebImageDownloaderOptions)options 183 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 184 | completed:(SDWebImageDownloaderCompletedBlock)completedBlock; 185 | 186 | /** 187 | * Sets the download queue suspension state 188 | */ 189 | - (void)setSuspended:(BOOL)suspended; 190 | 191 | @end 192 | -------------------------------------------------------------------------------- /Grid-List/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 | static NSString *const kProgressCallbackKey = @"progress"; 14 | static NSString *const kCompletedCallbackKey = @"completed"; 15 | 16 | @interface SDWebImageDownloader () 17 | 18 | @property (strong, nonatomic) NSOperationQueue *downloadQueue; 19 | @property (weak, nonatomic) NSOperation *lastAddedOperation; 20 | @property (assign, nonatomic) Class operationClass; 21 | @property (strong, nonatomic) NSMutableDictionary *URLCallbacks; 22 | @property (strong, nonatomic) NSMutableDictionary *HTTPHeaders; 23 | // This queue is used to serialize the handling of the network responses of all the download operation in a single queue 24 | @property (SDDispatchQueueSetterSementics, nonatomic) dispatch_queue_t barrierQueue; 25 | 26 | @end 27 | 28 | @implementation SDWebImageDownloader 29 | 30 | + (void)initialize { 31 | // Bind SDNetworkActivityIndicator if available (download it here: http://github.com/rs/SDNetworkActivityIndicator ) 32 | // To use it, just add #import "SDNetworkActivityIndicator.h" in addition to the SDWebImage import 33 | if (NSClassFromString(@"SDNetworkActivityIndicator")) { 34 | 35 | #pragma clang diagnostic push 36 | #pragma clang diagnostic ignored "-Warc-performSelector-leaks" 37 | id activityIndicator = [NSClassFromString(@"SDNetworkActivityIndicator") performSelector:NSSelectorFromString(@"sharedActivityIndicator")]; 38 | #pragma clang diagnostic pop 39 | 40 | // Remove observer in case it was previously added. 41 | [[NSNotificationCenter defaultCenter] removeObserver:activityIndicator name:SDWebImageDownloadStartNotification object:nil]; 42 | [[NSNotificationCenter defaultCenter] removeObserver:activityIndicator name:SDWebImageDownloadStopNotification object:nil]; 43 | 44 | [[NSNotificationCenter defaultCenter] addObserver:activityIndicator 45 | selector:NSSelectorFromString(@"startActivity") 46 | name:SDWebImageDownloadStartNotification object:nil]; 47 | [[NSNotificationCenter defaultCenter] addObserver:activityIndicator 48 | selector:NSSelectorFromString(@"stopActivity") 49 | name:SDWebImageDownloadStopNotification object:nil]; 50 | } 51 | } 52 | 53 | + (SDWebImageDownloader *)sharedDownloader { 54 | static dispatch_once_t once; 55 | static id instance; 56 | dispatch_once(&once, ^{ 57 | instance = [self new]; 58 | }); 59 | return instance; 60 | } 61 | 62 | - (id)init { 63 | if ((self = [super init])) { 64 | _operationClass = [SDWebImageDownloaderOperation class]; 65 | _shouldDecompressImages = YES; 66 | _executionOrder = SDWebImageDownloaderFIFOExecutionOrder; 67 | _downloadQueue = [NSOperationQueue new]; 68 | _downloadQueue.maxConcurrentOperationCount = 6; 69 | _URLCallbacks = [NSMutableDictionary new]; 70 | #ifdef SD_WEBP 71 | _HTTPHeaders = [@{@"Accept": @"image/webp,image/*;q=0.8"} mutableCopy]; 72 | #else 73 | _HTTPHeaders = [@{@"Accept": @"image/*;q=0.8"} mutableCopy]; 74 | #endif 75 | _barrierQueue = dispatch_queue_create("com.hackemist.SDWebImageDownloaderBarrierQueue", DISPATCH_QUEUE_CONCURRENT); 76 | _downloadTimeout = 15.0; 77 | } 78 | return self; 79 | } 80 | 81 | - (void)dealloc { 82 | [self.downloadQueue cancelAllOperations]; 83 | SDDispatchQueueRelease(_barrierQueue); 84 | } 85 | 86 | - (void)setValue:(NSString *)value forHTTPHeaderField:(NSString *)field { 87 | if (value) { 88 | self.HTTPHeaders[field] = value; 89 | } 90 | else { 91 | [self.HTTPHeaders removeObjectForKey:field]; 92 | } 93 | } 94 | 95 | - (NSString *)valueForHTTPHeaderField:(NSString *)field { 96 | return self.HTTPHeaders[field]; 97 | } 98 | 99 | - (void)setMaxConcurrentDownloads:(NSInteger)maxConcurrentDownloads { 100 | _downloadQueue.maxConcurrentOperationCount = maxConcurrentDownloads; 101 | } 102 | 103 | - (NSUInteger)currentDownloadCount { 104 | return _downloadQueue.operationCount; 105 | } 106 | 107 | - (NSInteger)maxConcurrentDownloads { 108 | return _downloadQueue.maxConcurrentOperationCount; 109 | } 110 | 111 | - (void)setOperationClass:(Class)operationClass { 112 | _operationClass = operationClass ?: [SDWebImageDownloaderOperation class]; 113 | } 114 | 115 | - (id )downloadImageWithURL:(NSURL *)url options:(SDWebImageDownloaderOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageDownloaderCompletedBlock)completedBlock { 116 | __block SDWebImageDownloaderOperation *operation; 117 | __weak __typeof(self)wself = self; 118 | 119 | [self addProgressCallback:progressBlock completedBlock:completedBlock forURL:url createCallback:^{ 120 | NSTimeInterval timeoutInterval = wself.downloadTimeout; 121 | if (timeoutInterval == 0.0) { 122 | timeoutInterval = 15.0; 123 | } 124 | 125 | // In order to prevent from potential duplicate caching (NSURLCache + SDImageCache) we disable the cache for image requests if told otherwise 126 | NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url cachePolicy:(options & SDWebImageDownloaderUseNSURLCache ? NSURLRequestUseProtocolCachePolicy : NSURLRequestReloadIgnoringLocalCacheData) timeoutInterval:timeoutInterval]; 127 | request.HTTPShouldHandleCookies = (options & SDWebImageDownloaderHandleCookies); 128 | request.HTTPShouldUsePipelining = YES; 129 | if (wself.headersFilter) { 130 | request.allHTTPHeaderFields = wself.headersFilter(url, [wself.HTTPHeaders copy]); 131 | } 132 | else { 133 | request.allHTTPHeaderFields = wself.HTTPHeaders; 134 | } 135 | operation = [[wself.operationClass alloc] initWithRequest:request 136 | options:options 137 | progress:^(NSInteger receivedSize, NSInteger expectedSize) { 138 | SDWebImageDownloader *sself = wself; 139 | if (!sself) return; 140 | __block NSArray *callbacksForURL; 141 | dispatch_sync(sself.barrierQueue, ^{ 142 | callbacksForURL = [sself.URLCallbacks[url] copy]; 143 | }); 144 | for (NSDictionary *callbacks in callbacksForURL) { 145 | dispatch_async(dispatch_get_main_queue(), ^{ 146 | SDWebImageDownloaderProgressBlock callback = callbacks[kProgressCallbackKey]; 147 | if (callback) callback(receivedSize, expectedSize); 148 | }); 149 | } 150 | } 151 | completed:^(UIImage *image, NSData *data, NSError *error, BOOL finished) { 152 | SDWebImageDownloader *sself = wself; 153 | if (!sself) return; 154 | __block NSArray *callbacksForURL; 155 | dispatch_barrier_sync(sself.barrierQueue, ^{ 156 | callbacksForURL = [sself.URLCallbacks[url] copy]; 157 | if (finished) { 158 | [sself.URLCallbacks removeObjectForKey:url]; 159 | } 160 | }); 161 | for (NSDictionary *callbacks in callbacksForURL) { 162 | SDWebImageDownloaderCompletedBlock callback = callbacks[kCompletedCallbackKey]; 163 | if (callback) callback(image, data, error, finished); 164 | } 165 | } 166 | cancelled:^{ 167 | SDWebImageDownloader *sself = wself; 168 | if (!sself) return; 169 | dispatch_barrier_async(sself.barrierQueue, ^{ 170 | [sself.URLCallbacks removeObjectForKey:url]; 171 | }); 172 | }]; 173 | operation.shouldDecompressImages = wself.shouldDecompressImages; 174 | 175 | if (wself.urlCredential) { 176 | operation.credential = wself.urlCredential; 177 | } else if (wself.username && wself.password) { 178 | operation.credential = [NSURLCredential credentialWithUser:wself.username password:wself.password persistence:NSURLCredentialPersistenceForSession]; 179 | } 180 | 181 | if (options & SDWebImageDownloaderHighPriority) { 182 | operation.queuePriority = NSOperationQueuePriorityHigh; 183 | } else if (options & SDWebImageDownloaderLowPriority) { 184 | operation.queuePriority = NSOperationQueuePriorityLow; 185 | } 186 | 187 | [wself.downloadQueue addOperation:operation]; 188 | if (wself.executionOrder == SDWebImageDownloaderLIFOExecutionOrder) { 189 | // Emulate LIFO execution order by systematically adding new operations as last operation's dependency 190 | [wself.lastAddedOperation addDependency:operation]; 191 | wself.lastAddedOperation = operation; 192 | } 193 | }]; 194 | 195 | return operation; 196 | } 197 | 198 | - (void)addProgressCallback:(SDWebImageDownloaderProgressBlock)progressBlock completedBlock:(SDWebImageDownloaderCompletedBlock)completedBlock forURL:(NSURL *)url createCallback:(SDWebImageNoParamsBlock)createCallback { 199 | // 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. 200 | if (url == nil) { 201 | if (completedBlock != nil) { 202 | completedBlock(nil, nil, nil, NO); 203 | } 204 | return; 205 | } 206 | 207 | dispatch_barrier_sync(self.barrierQueue, ^{ 208 | BOOL first = NO; 209 | if (!self.URLCallbacks[url]) { 210 | self.URLCallbacks[url] = [NSMutableArray new]; 211 | first = YES; 212 | } 213 | 214 | // Handle single download of simultaneous download request for the same URL 215 | NSMutableArray *callbacksForURL = self.URLCallbacks[url]; 216 | NSMutableDictionary *callbacks = [NSMutableDictionary new]; 217 | if (progressBlock) callbacks[kProgressCallbackKey] = [progressBlock copy]; 218 | if (completedBlock) callbacks[kCompletedCallbackKey] = [completedBlock copy]; 219 | [callbacksForURL addObject:callbacks]; 220 | self.URLCallbacks[url] = callbacksForURL; 221 | 222 | if (first) { 223 | createCallback(); 224 | } 225 | }); 226 | } 227 | 228 | - (void)setSuspended:(BOOL)suspended { 229 | [self.downloadQueue setSuspended:suspended]; 230 | } 231 | 232 | @end 233 | -------------------------------------------------------------------------------- /Grid-List/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 | extern NSString *const SDWebImageDownloadStartNotification; 14 | extern NSString *const SDWebImageDownloadReceiveResponseNotification; 15 | extern NSString *const SDWebImageDownloadStopNotification; 16 | extern NSString *const SDWebImageDownloadFinishNotification; 17 | 18 | @interface SDWebImageDownloaderOperation : NSOperation 19 | 20 | /** 21 | * The request used by the operation's connection. 22 | */ 23 | @property (strong, nonatomic, readonly) NSURLRequest *request; 24 | 25 | 26 | @property (assign, nonatomic) BOOL shouldDecompressImages; 27 | 28 | /** 29 | * Whether the URL connection should consult the credential storage for authenticating the connection. `YES` by default. 30 | * 31 | * This is the value that is returned in the `NSURLConnectionDelegate` method `-connectionShouldUseCredentialStorage:`. 32 | */ 33 | @property (nonatomic, assign) BOOL shouldUseCredentialStorage; 34 | 35 | /** 36 | * The credential used for authentication challenges in `-connection:didReceiveAuthenticationChallenge:`. 37 | * 38 | * This will be overridden by any shared credentials that exist for the username or password of the request URL, if present. 39 | */ 40 | @property (nonatomic, strong) NSURLCredential *credential; 41 | 42 | /** 43 | * The SDWebImageDownloaderOptions for the receiver. 44 | */ 45 | @property (assign, nonatomic, readonly) SDWebImageDownloaderOptions options; 46 | 47 | /** 48 | * The expected size of data. 49 | */ 50 | @property (assign, nonatomic) NSInteger expectedSize; 51 | 52 | /** 53 | * The response returned by the operation's connection. 54 | */ 55 | @property (strong, nonatomic) NSURLResponse *response; 56 | 57 | /** 58 | * Initializes a `SDWebImageDownloaderOperation` object 59 | * 60 | * @see SDWebImageDownloaderOperation 61 | * 62 | * @param request the URL request 63 | * @param options downloader options 64 | * @param progressBlock the block executed when a new chunk of data arrives. 65 | * @note the progress block is executed on a background queue 66 | * @param completedBlock the block executed when the download is done. 67 | * @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 68 | * @param cancelBlock the block executed if the download (operation) is cancelled 69 | * 70 | * @return the initialized instance 71 | */ 72 | - (id)initWithRequest:(NSURLRequest *)request 73 | options:(SDWebImageDownloaderOptions)options 74 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 75 | completed:(SDWebImageDownloaderCompletedBlock)completedBlock 76 | cancelled:(SDWebImageNoParamsBlock)cancelBlock; 77 | 78 | @end 79 | -------------------------------------------------------------------------------- /Grid-List/SDWebImage/SDWebImageDownloaderOperation.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 "SDWebImageDownloaderOperation.h" 10 | #import "SDWebImageDecoder.h" 11 | #import "UIImage+MultiFormat.h" 12 | #import 13 | #import "SDWebImageManager.h" 14 | 15 | NSString *const SDWebImageDownloadStartNotification = @"SDWebImageDownloadStartNotification"; 16 | NSString *const SDWebImageDownloadReceiveResponseNotification = @"SDWebImageDownloadReceiveResponseNotification"; 17 | NSString *const SDWebImageDownloadStopNotification = @"SDWebImageDownloadStopNotification"; 18 | NSString *const SDWebImageDownloadFinishNotification = @"SDWebImageDownloadFinishNotification"; 19 | 20 | @interface SDWebImageDownloaderOperation () 21 | 22 | @property (copy, nonatomic) SDWebImageDownloaderProgressBlock progressBlock; 23 | @property (copy, nonatomic) SDWebImageDownloaderCompletedBlock completedBlock; 24 | @property (copy, nonatomic) SDWebImageNoParamsBlock cancelBlock; 25 | 26 | @property (assign, nonatomic, getter = isExecuting) BOOL executing; 27 | @property (assign, nonatomic, getter = isFinished) BOOL finished; 28 | @property (strong, nonatomic) NSMutableData *imageData; 29 | @property (strong, nonatomic) NSURLConnection *connection; 30 | @property (strong, atomic) NSThread *thread; 31 | 32 | #if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0 33 | @property (assign, nonatomic) UIBackgroundTaskIdentifier backgroundTaskId; 34 | #endif 35 | 36 | @end 37 | 38 | @implementation SDWebImageDownloaderOperation { 39 | size_t width, height; 40 | UIImageOrientation orientation; 41 | BOOL responseFromCached; 42 | } 43 | 44 | @synthesize executing = _executing; 45 | @synthesize finished = _finished; 46 | 47 | - (id)initWithRequest:(NSURLRequest *)request 48 | options:(SDWebImageDownloaderOptions)options 49 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 50 | completed:(SDWebImageDownloaderCompletedBlock)completedBlock 51 | cancelled:(SDWebImageNoParamsBlock)cancelBlock { 52 | if ((self = [super init])) { 53 | _request = request; 54 | _shouldDecompressImages = YES; 55 | _shouldUseCredentialStorage = YES; 56 | _options = options; 57 | _progressBlock = [progressBlock copy]; 58 | _completedBlock = [completedBlock copy]; 59 | _cancelBlock = [cancelBlock copy]; 60 | _executing = NO; 61 | _finished = NO; 62 | _expectedSize = 0; 63 | responseFromCached = YES; // Initially wrong until `connection:willCacheResponse:` is called or not called 64 | } 65 | return self; 66 | } 67 | 68 | - (void)start { 69 | @synchronized (self) { 70 | if (self.isCancelled) { 71 | self.finished = YES; 72 | [self reset]; 73 | return; 74 | } 75 | 76 | #if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0 77 | Class UIApplicationClass = NSClassFromString(@"UIApplication"); 78 | BOOL hasApplication = UIApplicationClass && [UIApplicationClass respondsToSelector:@selector(sharedApplication)]; 79 | if (hasApplication && [self shouldContinueWhenAppEntersBackground]) { 80 | __weak __typeof__ (self) wself = self; 81 | UIApplication * app = [UIApplicationClass performSelector:@selector(sharedApplication)]; 82 | self.backgroundTaskId = [app beginBackgroundTaskWithExpirationHandler:^{ 83 | __strong __typeof (wself) sself = wself; 84 | 85 | if (sself) { 86 | [sself cancel]; 87 | 88 | [app endBackgroundTask:sself.backgroundTaskId]; 89 | sself.backgroundTaskId = UIBackgroundTaskInvalid; 90 | } 91 | }]; 92 | } 93 | #endif 94 | 95 | self.executing = YES; 96 | self.connection = [[NSURLConnection alloc] initWithRequest:self.request delegate:self startImmediately:NO]; 97 | self.thread = [NSThread currentThread]; 98 | } 99 | 100 | [self.connection start]; 101 | 102 | if (self.connection) { 103 | if (self.progressBlock) { 104 | self.progressBlock(0, NSURLResponseUnknownLength); 105 | } 106 | dispatch_async(dispatch_get_main_queue(), ^{ 107 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadStartNotification object:self]; 108 | }); 109 | 110 | if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_5_1) { 111 | // Make sure to run the runloop in our background thread so it can process downloaded data 112 | // Note: we use a timeout to work around an issue with NSURLConnection cancel under iOS 5 113 | // not waking up the runloop, leading to dead threads (see https://github.com/rs/SDWebImage/issues/466) 114 | CFRunLoopRunInMode(kCFRunLoopDefaultMode, 10, false); 115 | } 116 | else { 117 | CFRunLoopRun(); 118 | } 119 | 120 | if (!self.isFinished) { 121 | [self.connection cancel]; 122 | [self connection:self.connection didFailWithError:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorTimedOut userInfo:@{NSURLErrorFailingURLErrorKey : self.request.URL}]]; 123 | } 124 | } 125 | else { 126 | if (self.completedBlock) { 127 | self.completedBlock(nil, nil, [NSError errorWithDomain:NSURLErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey : @"Connection can't be initialized"}], YES); 128 | } 129 | } 130 | 131 | #if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0 132 | Class UIApplicationClass = NSClassFromString(@"UIApplication"); 133 | if(!UIApplicationClass || ![UIApplicationClass respondsToSelector:@selector(sharedApplication)]) { 134 | return; 135 | } 136 | if (self.backgroundTaskId != UIBackgroundTaskInvalid) { 137 | UIApplication * app = [UIApplication performSelector:@selector(sharedApplication)]; 138 | [app endBackgroundTask:self.backgroundTaskId]; 139 | self.backgroundTaskId = UIBackgroundTaskInvalid; 140 | } 141 | #endif 142 | } 143 | 144 | - (void)cancel { 145 | @synchronized (self) { 146 | if (self.thread) { 147 | [self performSelector:@selector(cancelInternalAndStop) onThread:self.thread withObject:nil waitUntilDone:NO]; 148 | } 149 | else { 150 | [self cancelInternal]; 151 | } 152 | } 153 | } 154 | 155 | - (void)cancelInternalAndStop { 156 | if (self.isFinished) return; 157 | [self cancelInternal]; 158 | CFRunLoopStop(CFRunLoopGetCurrent()); 159 | } 160 | 161 | - (void)cancelInternal { 162 | if (self.isFinished) return; 163 | [super cancel]; 164 | if (self.cancelBlock) self.cancelBlock(); 165 | 166 | if (self.connection) { 167 | [self.connection cancel]; 168 | dispatch_async(dispatch_get_main_queue(), ^{ 169 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadStopNotification object:self]; 170 | }); 171 | 172 | // As we cancelled the connection, its callback won't be called and thus won't 173 | // maintain the isFinished and isExecuting flags. 174 | if (self.isExecuting) self.executing = NO; 175 | if (!self.isFinished) self.finished = YES; 176 | } 177 | 178 | [self reset]; 179 | } 180 | 181 | - (void)done { 182 | self.finished = YES; 183 | self.executing = NO; 184 | [self reset]; 185 | } 186 | 187 | - (void)reset { 188 | self.cancelBlock = nil; 189 | self.completedBlock = nil; 190 | self.progressBlock = nil; 191 | self.connection = nil; 192 | self.imageData = nil; 193 | self.thread = nil; 194 | } 195 | 196 | - (void)setFinished:(BOOL)finished { 197 | [self willChangeValueForKey:@"isFinished"]; 198 | _finished = finished; 199 | [self didChangeValueForKey:@"isFinished"]; 200 | } 201 | 202 | - (void)setExecuting:(BOOL)executing { 203 | [self willChangeValueForKey:@"isExecuting"]; 204 | _executing = executing; 205 | [self didChangeValueForKey:@"isExecuting"]; 206 | } 207 | 208 | - (BOOL)isConcurrent { 209 | return YES; 210 | } 211 | 212 | #pragma mark NSURLConnection (delegate) 213 | 214 | - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { 215 | 216 | //'304 Not Modified' is an exceptional one 217 | if (![response respondsToSelector:@selector(statusCode)] || ([((NSHTTPURLResponse *)response) statusCode] < 400 && [((NSHTTPURLResponse *)response) statusCode] != 304)) { 218 | NSInteger expected = response.expectedContentLength > 0 ? (NSInteger)response.expectedContentLength : 0; 219 | self.expectedSize = expected; 220 | if (self.progressBlock) { 221 | self.progressBlock(0, expected); 222 | } 223 | 224 | self.imageData = [[NSMutableData alloc] initWithCapacity:expected]; 225 | self.response = response; 226 | dispatch_async(dispatch_get_main_queue(), ^{ 227 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadReceiveResponseNotification object:self]; 228 | }); 229 | } 230 | else { 231 | NSUInteger code = [((NSHTTPURLResponse *)response) statusCode]; 232 | 233 | //This is the case when server returns '304 Not Modified'. It means that remote image is not changed. 234 | //In case of 304 we need just cancel the operation and return cached image from the cache. 235 | if (code == 304) { 236 | [self cancelInternal]; 237 | } else { 238 | [self.connection cancel]; 239 | } 240 | dispatch_async(dispatch_get_main_queue(), ^{ 241 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadStopNotification object:self]; 242 | }); 243 | 244 | if (self.completedBlock) { 245 | self.completedBlock(nil, nil, [NSError errorWithDomain:NSURLErrorDomain code:[((NSHTTPURLResponse *)response) statusCode] userInfo:nil], YES); 246 | } 247 | CFRunLoopStop(CFRunLoopGetCurrent()); 248 | [self done]; 249 | } 250 | } 251 | 252 | - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { 253 | [self.imageData appendData:data]; 254 | 255 | if ((self.options & SDWebImageDownloaderProgressiveDownload) && self.expectedSize > 0 && self.completedBlock) { 256 | // The following code is from http://www.cocoaintheshell.com/2011/05/progressive-images-download-imageio/ 257 | // Thanks to the author @Nyx0uf 258 | 259 | // Get the total bytes downloaded 260 | const NSInteger totalSize = self.imageData.length; 261 | 262 | // Update the data source, we must pass ALL the data, not just the new bytes 263 | CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef)self.imageData, NULL); 264 | 265 | if (width + height == 0) { 266 | CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, NULL); 267 | if (properties) { 268 | NSInteger orientationValue = -1; 269 | CFTypeRef val = CFDictionaryGetValue(properties, kCGImagePropertyPixelHeight); 270 | if (val) CFNumberGetValue(val, kCFNumberLongType, &height); 271 | val = CFDictionaryGetValue(properties, kCGImagePropertyPixelWidth); 272 | if (val) CFNumberGetValue(val, kCFNumberLongType, &width); 273 | val = CFDictionaryGetValue(properties, kCGImagePropertyOrientation); 274 | if (val) CFNumberGetValue(val, kCFNumberNSIntegerType, &orientationValue); 275 | CFRelease(properties); 276 | 277 | // When we draw to Core Graphics, we lose orientation information, 278 | // which means the image below born of initWithCGIImage will be 279 | // oriented incorrectly sometimes. (Unlike the image born of initWithData 280 | // in connectionDidFinishLoading.) So save it here and pass it on later. 281 | orientation = [[self class] orientationFromPropertyValue:(orientationValue == -1 ? 1 : orientationValue)]; 282 | } 283 | 284 | } 285 | 286 | if (width + height > 0 && totalSize < self.expectedSize) { 287 | // Create the image 288 | CGImageRef partialImageRef = CGImageSourceCreateImageAtIndex(imageSource, 0, NULL); 289 | 290 | #ifdef TARGET_OS_IPHONE 291 | // Workaround for iOS anamorphic image 292 | if (partialImageRef) { 293 | const size_t partialHeight = CGImageGetHeight(partialImageRef); 294 | CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); 295 | CGContextRef bmContext = CGBitmapContextCreate(NULL, width, height, 8, width * 4, colorSpace, kCGBitmapByteOrderDefault | kCGImageAlphaPremultipliedFirst); 296 | CGColorSpaceRelease(colorSpace); 297 | if (bmContext) { 298 | CGContextDrawImage(bmContext, (CGRect){.origin.x = 0.0f, .origin.y = 0.0f, .size.width = width, .size.height = partialHeight}, partialImageRef); 299 | CGImageRelease(partialImageRef); 300 | partialImageRef = CGBitmapContextCreateImage(bmContext); 301 | CGContextRelease(bmContext); 302 | } 303 | else { 304 | CGImageRelease(partialImageRef); 305 | partialImageRef = nil; 306 | } 307 | } 308 | #endif 309 | 310 | if (partialImageRef) { 311 | UIImage *image = [UIImage imageWithCGImage:partialImageRef scale:1 orientation:orientation]; 312 | NSString *key = [[SDWebImageManager sharedManager] cacheKeyForURL:self.request.URL]; 313 | UIImage *scaledImage = [self scaledImageForKey:key image:image]; 314 | if (self.shouldDecompressImages) { 315 | image = [UIImage decodedImageWithImage:scaledImage]; 316 | } 317 | else { 318 | image = scaledImage; 319 | } 320 | CGImageRelease(partialImageRef); 321 | dispatch_main_sync_safe(^{ 322 | if (self.completedBlock) { 323 | self.completedBlock(image, nil, nil, NO); 324 | } 325 | }); 326 | } 327 | } 328 | 329 | CFRelease(imageSource); 330 | } 331 | 332 | if (self.progressBlock) { 333 | self.progressBlock(self.imageData.length, self.expectedSize); 334 | } 335 | } 336 | 337 | + (UIImageOrientation)orientationFromPropertyValue:(NSInteger)value { 338 | switch (value) { 339 | case 1: 340 | return UIImageOrientationUp; 341 | case 3: 342 | return UIImageOrientationDown; 343 | case 8: 344 | return UIImageOrientationLeft; 345 | case 6: 346 | return UIImageOrientationRight; 347 | case 2: 348 | return UIImageOrientationUpMirrored; 349 | case 4: 350 | return UIImageOrientationDownMirrored; 351 | case 5: 352 | return UIImageOrientationLeftMirrored; 353 | case 7: 354 | return UIImageOrientationRightMirrored; 355 | default: 356 | return UIImageOrientationUp; 357 | } 358 | } 359 | 360 | - (UIImage *)scaledImageForKey:(NSString *)key image:(UIImage *)image { 361 | return SDScaledImageForKey(key, image); 362 | } 363 | 364 | - (void)connectionDidFinishLoading:(NSURLConnection *)aConnection { 365 | SDWebImageDownloaderCompletedBlock completionBlock = self.completedBlock; 366 | @synchronized(self) { 367 | CFRunLoopStop(CFRunLoopGetCurrent()); 368 | self.thread = nil; 369 | self.connection = nil; 370 | dispatch_async(dispatch_get_main_queue(), ^{ 371 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadStopNotification object:self]; 372 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadFinishNotification object:self]; 373 | }); 374 | } 375 | 376 | if (![[NSURLCache sharedURLCache] cachedResponseForRequest:_request]) { 377 | responseFromCached = NO; 378 | } 379 | 380 | if (completionBlock) { 381 | if (self.options & SDWebImageDownloaderIgnoreCachedResponse && responseFromCached) { 382 | completionBlock(nil, nil, nil, YES); 383 | } else if (self.imageData) { 384 | UIImage *image = [UIImage sd_imageWithData:self.imageData]; 385 | NSString *key = [[SDWebImageManager sharedManager] cacheKeyForURL:self.request.URL]; 386 | image = [self scaledImageForKey:key image:image]; 387 | 388 | // Do not force decoding animated GIFs 389 | if (!image.images) { 390 | if (self.shouldDecompressImages) { 391 | image = [UIImage decodedImageWithImage:image]; 392 | } 393 | } 394 | if (CGSizeEqualToSize(image.size, CGSizeZero)) { 395 | completionBlock(nil, nil, [NSError errorWithDomain:SDWebImageErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey : @"Downloaded image has 0 pixels"}], YES); 396 | } 397 | else { 398 | completionBlock(image, self.imageData, nil, YES); 399 | } 400 | } else { 401 | completionBlock(nil, nil, [NSError errorWithDomain:SDWebImageErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey : @"Image data is nil"}], YES); 402 | } 403 | } 404 | self.completionBlock = nil; 405 | [self done]; 406 | } 407 | 408 | - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { 409 | @synchronized(self) { 410 | CFRunLoopStop(CFRunLoopGetCurrent()); 411 | self.thread = nil; 412 | self.connection = nil; 413 | dispatch_async(dispatch_get_main_queue(), ^{ 414 | [[NSNotificationCenter defaultCenter] postNotificationName:SDWebImageDownloadStopNotification object:self]; 415 | }); 416 | } 417 | 418 | if (self.completedBlock) { 419 | self.completedBlock(nil, nil, error, YES); 420 | } 421 | self.completionBlock = nil; 422 | [self done]; 423 | } 424 | 425 | - (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse { 426 | responseFromCached = NO; // If this method is called, it means the response wasn't read from cache 427 | if (self.request.cachePolicy == NSURLRequestReloadIgnoringLocalCacheData) { 428 | // Prevents caching of responses 429 | return nil; 430 | } 431 | else { 432 | return cachedResponse; 433 | } 434 | } 435 | 436 | - (BOOL)shouldContinueWhenAppEntersBackground { 437 | return self.options & SDWebImageDownloaderContinueInBackground; 438 | } 439 | 440 | - (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection __unused *)connection { 441 | return self.shouldUseCredentialStorage; 442 | } 443 | 444 | - (void)connection:(NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge{ 445 | if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) { 446 | if (!(self.options & SDWebImageDownloaderAllowInvalidSSLCertificates) && 447 | [challenge.sender respondsToSelector:@selector(performDefaultHandlingForAuthenticationChallenge:)]) { 448 | [challenge.sender performDefaultHandlingForAuthenticationChallenge:challenge]; 449 | } else { 450 | NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]; 451 | [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; 452 | } 453 | } else { 454 | if ([challenge previousFailureCount] == 0) { 455 | if (self.credential) { 456 | [[challenge sender] useCredential:self.credential forAuthenticationChallenge:challenge]; 457 | } else { 458 | [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge]; 459 | } 460 | } else { 461 | [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge]; 462 | } 463 | } 464 | } 465 | 466 | @end 467 | -------------------------------------------------------------------------------- /Grid-List/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 embedded 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 certificates. 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 | * By default, image is added to the imageView after download. But in some cases, we want to 88 | * have the hand before setting the image (apply a filter or add it with cross-fade animation for instance) 89 | * Use this flag if you want to manually set the image in the completion when success 90 | */ 91 | SDWebImageAvoidAutoSetImage = 1 << 11 92 | }; 93 | 94 | typedef void(^SDWebImageCompletionBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL); 95 | 96 | typedef void(^SDWebImageCompletionWithFinishedBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL); 97 | 98 | typedef NSString *(^SDWebImageCacheKeyFilterBlock)(NSURL *url); 99 | 100 | 101 | @class SDWebImageManager; 102 | 103 | @protocol SDWebImageManagerDelegate 104 | 105 | @optional 106 | 107 | /** 108 | * Controls which image should be downloaded when the image is not found in the cache. 109 | * 110 | * @param imageManager The current `SDWebImageManager` 111 | * @param imageURL The url of the image to be downloaded 112 | * 113 | * @return Return NO to prevent the downloading of the image on cache misses. If not implemented, YES is implied. 114 | */ 115 | - (BOOL)imageManager:(SDWebImageManager *)imageManager shouldDownloadImageForURL:(NSURL *)imageURL; 116 | 117 | /** 118 | * Allows to transform the image immediately after it has been downloaded and just before to cache it on disk and memory. 119 | * NOTE: This method is called from a global queue in order to not to block the main thread. 120 | * 121 | * @param imageManager The current `SDWebImageManager` 122 | * @param image The image to transform 123 | * @param imageURL The url of the image to transform 124 | * 125 | * @return The transformed image object. 126 | */ 127 | - (UIImage *)imageManager:(SDWebImageManager *)imageManager transformDownloadedImage:(UIImage *)image withURL:(NSURL *)imageURL; 128 | 129 | @end 130 | 131 | /** 132 | * The SDWebImageManager is the class behind the UIImageView+WebCache category and likes. 133 | * It ties the asynchronous downloader (SDWebImageDownloader) with the image cache store (SDImageCache). 134 | * You can use this class directly to benefit from web image downloading with caching in another context than 135 | * a UIView. 136 | * 137 | * Here is a simple example of how to use SDWebImageManager: 138 | * 139 | * @code 140 | 141 | SDWebImageManager *manager = [SDWebImageManager sharedManager]; 142 | [manager downloadImageWithURL:imageURL 143 | options:0 144 | progress:nil 145 | completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 146 | if (image) { 147 | // do something with image 148 | } 149 | }]; 150 | 151 | * @endcode 152 | */ 153 | @interface SDWebImageManager : NSObject 154 | 155 | @property (weak, nonatomic) id delegate; 156 | 157 | @property (strong, nonatomic, readonly) SDImageCache *imageCache; 158 | @property (strong, nonatomic, readonly) SDWebImageDownloader *imageDownloader; 159 | 160 | /** 161 | * The cache filter is a block used each time SDWebImageManager need to convert an URL into a cache key. This can 162 | * be used to remove dynamic part of an image URL. 163 | * 164 | * The following example sets a filter in the application delegate that will remove any query-string from the 165 | * URL before to use it as a cache key: 166 | * 167 | * @code 168 | 169 | [[SDWebImageManager sharedManager] setCacheKeyFilter:^(NSURL *url) { 170 | url = [[NSURL alloc] initWithScheme:url.scheme host:url.host path:url.path]; 171 | return [url absoluteString]; 172 | }]; 173 | 174 | * @endcode 175 | */ 176 | @property (nonatomic, copy) SDWebImageCacheKeyFilterBlock cacheKeyFilter; 177 | 178 | /** 179 | * Returns global SDWebImageManager instance. 180 | * 181 | * @return SDWebImageManager shared instance 182 | */ 183 | + (SDWebImageManager *)sharedManager; 184 | 185 | /** 186 | * Downloads the image at the given URL if not present in cache or return the cached version otherwise. 187 | * 188 | * @param url The URL to the image 189 | * @param options A mask to specify options to use for this request 190 | * @param progressBlock A block called while image is downloading 191 | * @param completedBlock A block called when operation has been completed. 192 | * 193 | * This parameter is required. 194 | * 195 | * This block has no return value and takes the requested UIImage as first parameter. 196 | * In case of error the image parameter is nil and the second parameter may contain an NSError. 197 | * 198 | * The third parameter is an `SDImageCacheType` enum indicating if the image was retrieved from the local cache 199 | * or from the memory cache or from the network. 200 | * 201 | * The last parameter is set to NO when the SDWebImageProgressiveDownload option is used and the image is 202 | * downloading. This block is thus called repeatedly with a partial image. When image is fully downloaded, the 203 | * block is called a last time with the full image and the last parameter set to YES. 204 | * 205 | * @return Returns an NSObject conforming to SDWebImageOperation. Should be an instance of SDWebImageDownloaderOperation 206 | */ 207 | - (id )downloadImageWithURL:(NSURL *)url 208 | options:(SDWebImageOptions)options 209 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 210 | completed:(SDWebImageCompletionWithFinishedBlock)completedBlock; 211 | 212 | /** 213 | * Saves image to cache for given URL 214 | * 215 | * @param image The image to cache 216 | * @param url The URL to the image 217 | * 218 | */ 219 | 220 | - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url; 221 | 222 | /** 223 | * Cancel all current operations 224 | */ 225 | - (void)cancelAll; 226 | 227 | /** 228 | * Check one or more operations running 229 | */ 230 | - (BOOL)isRunning; 231 | 232 | /** 233 | * Check if image has already been cached 234 | * 235 | * @param url image url 236 | * 237 | * @return if the image was already cached 238 | */ 239 | - (BOOL)cachedImageExistsForURL:(NSURL *)url; 240 | 241 | /** 242 | * Check if image has already been cached on disk only 243 | * 244 | * @param url image url 245 | * 246 | * @return if the image was already cached (disk only) 247 | */ 248 | - (BOOL)diskImageExistsForURL:(NSURL *)url; 249 | 250 | /** 251 | * Async check if image has already been cached 252 | * 253 | * @param url image url 254 | * @param completionBlock the block to be executed when the check is finished 255 | * 256 | * @note the completion block is always executed on the main queue 257 | */ 258 | - (void)cachedImageExistsForURL:(NSURL *)url 259 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 260 | 261 | /** 262 | * Async check if image has already been cached on disk only 263 | * 264 | * @param url image url 265 | * @param completionBlock the block to be executed when the check is finished 266 | * 267 | * @note the completion block is always executed on the main queue 268 | */ 269 | - (void)diskImageExistsForURL:(NSURL *)url 270 | completion:(SDWebImageCheckCacheCompletionBlock)completionBlock; 271 | 272 | 273 | /** 274 | *Return the cache key for a given URL 275 | */ 276 | - (NSString *)cacheKeyForURL:(NSURL *)url; 277 | 278 | @end 279 | 280 | 281 | #pragma mark - Deprecated 282 | 283 | typedef void(^SDWebImageCompletedBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType) __deprecated_msg("Block type deprecated. Use `SDWebImageCompletionBlock`"); 284 | typedef void(^SDWebImageCompletedWithFinishedBlock)(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) __deprecated_msg("Block type deprecated. Use `SDWebImageCompletionWithFinishedBlock`"); 285 | 286 | 287 | @interface SDWebImageManager (Deprecated) 288 | 289 | /** 290 | * Downloads the image at the given URL if not present in cache or return the cached version otherwise. 291 | * 292 | * @deprecated This method has been deprecated. Use `downloadImageWithURL:options:progress:completed:` 293 | */ 294 | - (id )downloadWithURL:(NSURL *)url 295 | options:(SDWebImageOptions)options 296 | progress:(SDWebImageDownloaderProgressBlock)progressBlock 297 | completed:(SDWebImageCompletedWithFinishedBlock)completedBlock __deprecated_msg("Method deprecated. Use `downloadImageWithURL:options:progress:completed:`"); 298 | 299 | @end 300 | -------------------------------------------------------------------------------- /Grid-List/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) NSMutableSet *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 = [NSMutableSet 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.absoluteString.length == 0 || (!(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 but 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 | __strong __typeof(weakOperation) strongOperation = weakOperation; 184 | if (!strongOperation || strongOperation.isCancelled) { 185 | // Do nothing if the operation was cancelled 186 | // See #699 for more details 187 | // 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 188 | } 189 | else if (error) { 190 | dispatch_main_sync_safe(^{ 191 | if (strongOperation && !strongOperation.isCancelled) { 192 | completedBlock(nil, error, SDImageCacheTypeNone, finished, url); 193 | } 194 | }); 195 | 196 | if ( error.code != NSURLErrorNotConnectedToInternet 197 | && error.code != NSURLErrorCancelled 198 | && error.code != NSURLErrorTimedOut 199 | && error.code != NSURLErrorInternationalRoamingOff 200 | && error.code != NSURLErrorDataNotAllowed 201 | && error.code != NSURLErrorCannotFindHost 202 | && error.code != NSURLErrorCannotConnectToHost) { 203 | @synchronized (self.failedURLs) { 204 | [self.failedURLs addObject:url]; 205 | } 206 | } 207 | } 208 | else { 209 | if ((options & SDWebImageRetryFailed)) { 210 | @synchronized (self.failedURLs) { 211 | [self.failedURLs removeObject:url]; 212 | } 213 | } 214 | 215 | BOOL cacheOnDisk = !(options & SDWebImageCacheMemoryOnly); 216 | 217 | if (options & SDWebImageRefreshCached && image && !downloadedImage) { 218 | // Image refresh hit the NSURLCache cache, do not call the completion block 219 | } 220 | else if (downloadedImage && (!downloadedImage.images || (options & SDWebImageTransformAnimatedImage)) && [self.delegate respondsToSelector:@selector(imageManager:transformDownloadedImage:withURL:)]) { 221 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{ 222 | UIImage *transformedImage = [self.delegate imageManager:self transformDownloadedImage:downloadedImage withURL:url]; 223 | 224 | if (transformedImage && finished) { 225 | BOOL imageWasTransformed = ![transformedImage isEqual:downloadedImage]; 226 | [self.imageCache storeImage:transformedImage recalculateFromImage:imageWasTransformed imageData:(imageWasTransformed ? nil : data) forKey:key toDisk:cacheOnDisk]; 227 | } 228 | 229 | dispatch_main_sync_safe(^{ 230 | if (strongOperation && !strongOperation.isCancelled) { 231 | completedBlock(transformedImage, nil, SDImageCacheTypeNone, finished, url); 232 | } 233 | }); 234 | }); 235 | } 236 | else { 237 | if (downloadedImage && finished) { 238 | [self.imageCache storeImage:downloadedImage recalculateFromImage:NO imageData:data forKey:key toDisk:cacheOnDisk]; 239 | } 240 | 241 | dispatch_main_sync_safe(^{ 242 | if (strongOperation && !strongOperation.isCancelled) { 243 | completedBlock(downloadedImage, nil, SDImageCacheTypeNone, finished, url); 244 | } 245 | }); 246 | } 247 | } 248 | 249 | if (finished) { 250 | @synchronized (self.runningOperations) { 251 | if (strongOperation) { 252 | [self.runningOperations removeObject:strongOperation]; 253 | } 254 | } 255 | } 256 | }]; 257 | operation.cancelBlock = ^{ 258 | [subOperation cancel]; 259 | 260 | @synchronized (self.runningOperations) { 261 | __strong __typeof(weakOperation) strongOperation = weakOperation; 262 | if (strongOperation) { 263 | [self.runningOperations removeObject:strongOperation]; 264 | } 265 | } 266 | }; 267 | } 268 | else if (image) { 269 | dispatch_main_sync_safe(^{ 270 | __strong __typeof(weakOperation) strongOperation = weakOperation; 271 | if (strongOperation && !strongOperation.isCancelled) { 272 | completedBlock(image, nil, cacheType, YES, url); 273 | } 274 | }); 275 | @synchronized (self.runningOperations) { 276 | [self.runningOperations removeObject:operation]; 277 | } 278 | } 279 | else { 280 | // Image not in cache and download disallowed by delegate 281 | dispatch_main_sync_safe(^{ 282 | __strong __typeof(weakOperation) strongOperation = weakOperation; 283 | if (strongOperation && !weakOperation.isCancelled) { 284 | completedBlock(nil, nil, SDImageCacheTypeNone, YES, url); 285 | } 286 | }); 287 | @synchronized (self.runningOperations) { 288 | [self.runningOperations removeObject:operation]; 289 | } 290 | } 291 | }]; 292 | 293 | return operation; 294 | } 295 | 296 | - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url { 297 | if (image && url) { 298 | NSString *key = [self cacheKeyForURL:url]; 299 | [self.imageCache storeImage:image forKey:key toDisk:YES]; 300 | } 301 | } 302 | 303 | - (void)cancelAll { 304 | @synchronized (self.runningOperations) { 305 | NSArray *copiedOperations = [self.runningOperations copy]; 306 | [copiedOperations makeObjectsPerformSelector:@selector(cancel)]; 307 | [self.runningOperations removeObjectsInArray:copiedOperations]; 308 | } 309 | } 310 | 311 | - (BOOL)isRunning { 312 | BOOL isRunning = NO; 313 | @synchronized(self.runningOperations) { 314 | isRunning = (self.runningOperations.count > 0); 315 | } 316 | return isRunning; 317 | } 318 | 319 | @end 320 | 321 | 322 | @implementation SDWebImageCombinedOperation 323 | 324 | - (void)setCancelBlock:(SDWebImageNoParamsBlock)cancelBlock { 325 | // check if the operation is already cancelled, then we just call the cancelBlock 326 | if (self.isCancelled) { 327 | if (cancelBlock) { 328 | cancelBlock(); 329 | } 330 | _cancelBlock = nil; // don't forget to nil the cancelBlock, otherwise we will get crashes 331 | } else { 332 | _cancelBlock = [cancelBlock copy]; 333 | } 334 | } 335 | 336 | - (void)cancel { 337 | self.cancelled = YES; 338 | if (self.cacheOperation) { 339 | [self.cacheOperation cancel]; 340 | self.cacheOperation = nil; 341 | } 342 | if (self.cancelBlock) { 343 | self.cancelBlock(); 344 | 345 | // TODO: this is a temporary fix to #809. 346 | // Until we can figure the exact cause of the crash, going with the ivar instead of the setter 347 | // self.cancelBlock = nil; 348 | _cancelBlock = nil; 349 | } 350 | } 351 | 352 | @end 353 | 354 | 355 | @implementation SDWebImageManager (Deprecated) 356 | 357 | // deprecated method, uses the non deprecated method 358 | // adapter for the completion block 359 | - (id )downloadWithURL:(NSURL *)url options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedWithFinishedBlock)completedBlock { 360 | return [self downloadImageWithURL:url 361 | options:options 362 | progress:progressBlock 363 | completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 364 | if (completedBlock) { 365 | completedBlock(image, error, cacheType, finished); 366 | } 367 | }]; 368 | } 369 | 370 | @end 371 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/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 | /** 62 | * Queue options for Prefetcher. Defaults to Main Queue. 63 | */ 64 | @property (nonatomic, assign) dispatch_queue_t prefetcherQueue; 65 | 66 | @property (weak, nonatomic) id delegate; 67 | 68 | /** 69 | * Return the global image prefetcher instance. 70 | */ 71 | + (SDWebImagePrefetcher *)sharedImagePrefetcher; 72 | 73 | /** 74 | * Allows you to instantiate a prefetcher with any arbitrary image manager. 75 | */ 76 | - (id)initWithImageManager:(SDWebImageManager *)manager; 77 | 78 | /** 79 | * Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching, 80 | * currently one image is downloaded at a time, 81 | * and skips images for failed downloads and proceed to the next image in the list 82 | * 83 | * @param urls list of URLs to prefetch 84 | */ 85 | - (void)prefetchURLs:(NSArray *)urls; 86 | 87 | /** 88 | * Assign list of URLs to let SDWebImagePrefetcher to queue the prefetching, 89 | * currently one image is downloaded at a time, 90 | * and skips images for failed downloads and proceed to the next image in the list 91 | * 92 | * @param urls list of URLs to prefetch 93 | * @param progressBlock block to be called when progress updates; 94 | * first parameter is the number of completed (successful or not) requests, 95 | * second parameter is the total number of images originally requested to be prefetched 96 | * @param completionBlock block to be called when prefetching is completed 97 | * first param is the number of completed (successful or not) requests, 98 | * second parameter is the number of skipped requests 99 | */ 100 | - (void)prefetchURLs:(NSArray *)urls progress:(SDWebImagePrefetcherProgressBlock)progressBlock completed:(SDWebImagePrefetcherCompletionBlock)completionBlock; 101 | 102 | /** 103 | * Remove and cancel queued list 104 | */ 105 | - (void)cancelPrefetching; 106 | 107 | 108 | @end 109 | -------------------------------------------------------------------------------- /Grid-List/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 | @interface SDWebImagePrefetcher () 12 | 13 | @property (strong, nonatomic) SDWebImageManager *manager; 14 | @property (strong, nonatomic) NSArray *prefetchURLs; 15 | @property (assign, nonatomic) NSUInteger requestedCount; 16 | @property (assign, nonatomic) NSUInteger skippedCount; 17 | @property (assign, nonatomic) NSUInteger finishedCount; 18 | @property (assign, nonatomic) NSTimeInterval startedTime; 19 | @property (copy, nonatomic) SDWebImagePrefetcherCompletionBlock completionBlock; 20 | @property (copy, nonatomic) SDWebImagePrefetcherProgressBlock progressBlock; 21 | 22 | @end 23 | 24 | @implementation SDWebImagePrefetcher 25 | 26 | + (SDWebImagePrefetcher *)sharedImagePrefetcher { 27 | static dispatch_once_t once; 28 | static id instance; 29 | dispatch_once(&once, ^{ 30 | instance = [self new]; 31 | }); 32 | return instance; 33 | } 34 | 35 | - (id)init { 36 | return [self initWithImageManager:[SDWebImageManager new]]; 37 | } 38 | 39 | - (id)initWithImageManager:(SDWebImageManager *)manager { 40 | if ((self = [super init])) { 41 | _manager = manager; 42 | _options = SDWebImageLowPriority; 43 | _prefetcherQueue = dispatch_get_main_queue(); 44 | self.maxConcurrentDownloads = 3; 45 | } 46 | return self; 47 | } 48 | 49 | - (void)setMaxConcurrentDownloads:(NSUInteger)maxConcurrentDownloads { 50 | self.manager.imageDownloader.maxConcurrentDownloads = maxConcurrentDownloads; 51 | } 52 | 53 | - (NSUInteger)maxConcurrentDownloads { 54 | return self.manager.imageDownloader.maxConcurrentDownloads; 55 | } 56 | 57 | - (void)startPrefetchingAtIndex:(NSUInteger)index { 58 | if (index >= self.prefetchURLs.count) return; 59 | self.requestedCount++; 60 | [self.manager downloadImageWithURL:self.prefetchURLs[index] options:self.options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 61 | if (!finished) return; 62 | self.finishedCount++; 63 | 64 | if (image) { 65 | if (self.progressBlock) { 66 | self.progressBlock(self.finishedCount,[self.prefetchURLs count]); 67 | } 68 | } 69 | else { 70 | if (self.progressBlock) { 71 | self.progressBlock(self.finishedCount,[self.prefetchURLs count]); 72 | } 73 | // Add last failed 74 | self.skippedCount++; 75 | } 76 | if ([self.delegate respondsToSelector:@selector(imagePrefetcher:didPrefetchURL:finishedCount:totalCount:)]) { 77 | [self.delegate imagePrefetcher:self 78 | didPrefetchURL:self.prefetchURLs[index] 79 | finishedCount:self.finishedCount 80 | totalCount:self.prefetchURLs.count 81 | ]; 82 | } 83 | if (self.prefetchURLs.count > self.requestedCount) { 84 | dispatch_async(self.prefetcherQueue, ^{ 85 | [self startPrefetchingAtIndex:self.requestedCount]; 86 | }); 87 | } else if (self.finishedCount == self.requestedCount) { 88 | [self reportStatus]; 89 | if (self.completionBlock) { 90 | self.completionBlock(self.finishedCount, self.skippedCount); 91 | self.completionBlock = nil; 92 | } 93 | self.progressBlock = nil; 94 | } 95 | }]; 96 | } 97 | 98 | - (void)reportStatus { 99 | NSUInteger total = [self.prefetchURLs count]; 100 | if ([self.delegate respondsToSelector:@selector(imagePrefetcher:didFinishWithTotalCount:skippedCount:)]) { 101 | [self.delegate imagePrefetcher:self 102 | didFinishWithTotalCount:(total - self.skippedCount) 103 | skippedCount:self.skippedCount 104 | ]; 105 | } 106 | } 107 | 108 | - (void)prefetchURLs:(NSArray *)urls { 109 | [self prefetchURLs:urls progress:nil completed:nil]; 110 | } 111 | 112 | - (void)prefetchURLs:(NSArray *)urls progress:(SDWebImagePrefetcherProgressBlock)progressBlock completed:(SDWebImagePrefetcherCompletionBlock)completionBlock { 113 | [self cancelPrefetching]; // Prevent duplicate prefetch request 114 | self.startedTime = CFAbsoluteTimeGetCurrent(); 115 | self.prefetchURLs = urls; 116 | self.completionBlock = completionBlock; 117 | self.progressBlock = progressBlock; 118 | 119 | if (urls.count == 0) { 120 | if (completionBlock) { 121 | completionBlock(0,0); 122 | } 123 | } else { 124 | // Starts prefetching from the very first image on the list with the max allowed concurrency 125 | NSUInteger listCount = self.prefetchURLs.count; 126 | for (NSUInteger i = 0; i < self.maxConcurrentDownloads && self.requestedCount < listCount; i++) { 127 | [self startPrefetchingAtIndex:i]; 128 | } 129 | } 130 | } 131 | 132 | - (void)cancelPrefetching { 133 | self.prefetchURLs = nil; 134 | self.skippedCount = 0; 135 | self.requestedCount = 0; 136 | self.finishedCount = 0; 137 | [self.manager cancelAll]; 138 | } 139 | 140 | @end 141 | -------------------------------------------------------------------------------- /Grid-List/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 retrieved 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 retrieved 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 retrieved 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 retrieved 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 retrieved 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 retrieved 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 | 204 | 205 | @interface UIButton (WebCacheDeprecated) 206 | 207 | - (NSURL *)currentImageURL __deprecated_msg("Use `sd_currentImageURL`"); 208 | - (NSURL *)imageURLForState:(UIControlState)state __deprecated_msg("Use `sd_imageURLForState:`"); 209 | 210 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:`"); 211 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:placeholderImage:`"); 212 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:placeholderImage:options:`"); 213 | 214 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:completed:`"); 215 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:placeholderImage:completed:`"); 216 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:forState:placeholderImage:options:completed:`"); 217 | 218 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:`"); 219 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:placeholderImage:`"); 220 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:placeholderImage:options:`"); 221 | 222 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:completed:`"); 223 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:placeholderImage:completed:`"); 224 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setBackgroundImageWithURL:forState:placeholderImage:options:completed:`"); 225 | 226 | - (void)cancelCurrentImageLoad __deprecated_msg("Use `sd_cancelImageLoadForState:`"); 227 | - (void)cancelBackgroundImageLoadForState:(UIControlState)state __deprecated_msg("Use `sd_cancelBackgroundImageLoadForState:`"); 228 | 229 | @end 230 | -------------------------------------------------------------------------------- /Grid-List/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 | if (completedBlock) { 61 | NSError *error = [NSError errorWithDomain:SDWebImageErrorDomain code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 62 | completedBlock(nil, error, SDImageCacheTypeNone, url); 63 | } 64 | }); 65 | 66 | return; 67 | } 68 | 69 | self.imageURLStorage[@(state)] = url; 70 | 71 | __weak __typeof(self)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 && (options & SDWebImageAvoidAutoSetImage) && completedBlock) 78 | { 79 | completedBlock(image, error, cacheType, url); 80 | return; 81 | } 82 | else if (image) { 83 | [sself setImage:image forState:state]; 84 | } 85 | if (completedBlock && finished) { 86 | completedBlock(image, error, cacheType, url); 87 | } 88 | }); 89 | }]; 90 | [self sd_setImageLoadOperation:operation forState:state]; 91 | } 92 | 93 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state { 94 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil]; 95 | } 96 | 97 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder { 98 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil]; 99 | } 100 | 101 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 102 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil]; 103 | } 104 | 105 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletionBlock)completedBlock { 106 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:completedBlock]; 107 | } 108 | 109 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 110 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:completedBlock]; 111 | } 112 | 113 | - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 114 | [self sd_cancelBackgroundImageLoadForState:state]; 115 | 116 | [self setBackgroundImage:placeholder forState:state]; 117 | 118 | if (url) { 119 | __weak __typeof(self)wself = self; 120 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 121 | if (!wself) return; 122 | dispatch_main_sync_safe(^{ 123 | __strong UIButton *sself = wself; 124 | if (!sself) return; 125 | if (image && (options & SDWebImageAvoidAutoSetImage) && completedBlock) 126 | { 127 | completedBlock(image, error, cacheType, url); 128 | return; 129 | } 130 | else if (image) { 131 | [sself setBackgroundImage:image forState:state]; 132 | } 133 | if (completedBlock && finished) { 134 | completedBlock(image, error, cacheType, url); 135 | } 136 | }); 137 | }]; 138 | [self sd_setBackgroundImageLoadOperation:operation forState:state]; 139 | } else { 140 | dispatch_main_async_safe(^{ 141 | NSError *error = [NSError errorWithDomain:SDWebImageErrorDomain code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 142 | if (completedBlock) { 143 | completedBlock(nil, error, SDImageCacheTypeNone, url); 144 | } 145 | }); 146 | } 147 | } 148 | 149 | - (void)sd_setImageLoadOperation:(id)operation forState:(UIControlState)state { 150 | [self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]]; 151 | } 152 | 153 | - (void)sd_cancelImageLoadForState:(UIControlState)state { 154 | [self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonImageOperation%@", @(state)]]; 155 | } 156 | 157 | - (void)sd_setBackgroundImageLoadOperation:(id)operation forState:(UIControlState)state { 158 | [self sd_setImageLoadOperation:operation forKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]]; 159 | } 160 | 161 | - (void)sd_cancelBackgroundImageLoadForState:(UIControlState)state { 162 | [self sd_cancelImageLoadOperationWithKey:[NSString stringWithFormat:@"UIButtonBackgroundImageOperation%@", @(state)]]; 163 | } 164 | 165 | - (NSMutableDictionary *)imageURLStorage { 166 | NSMutableDictionary *storage = objc_getAssociatedObject(self, &imageURLStorageKey); 167 | if (!storage) 168 | { 169 | storage = [NSMutableDictionary dictionary]; 170 | objc_setAssociatedObject(self, &imageURLStorageKey, storage, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 171 | } 172 | 173 | return storage; 174 | } 175 | 176 | @end 177 | 178 | 179 | @implementation UIButton (WebCacheDeprecated) 180 | 181 | - (NSURL *)currentImageURL { 182 | return [self sd_currentImageURL]; 183 | } 184 | 185 | - (NSURL *)imageURLForState:(UIControlState)state { 186 | return [self sd_imageURLForState:state]; 187 | } 188 | 189 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state { 190 | [self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil]; 191 | } 192 | 193 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder { 194 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil]; 195 | } 196 | 197 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 198 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil]; 199 | } 200 | 201 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock { 202 | [self sd_setImageWithURL:url forState:state placeholderImage:nil options:0 completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 203 | if (completedBlock) { 204 | completedBlock(image, error, cacheType); 205 | } 206 | }]; 207 | } 208 | 209 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock { 210 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 211 | if (completedBlock) { 212 | completedBlock(image, error, cacheType); 213 | } 214 | }]; 215 | } 216 | 217 | - (void)setImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock { 218 | [self sd_setImageWithURL:url forState:state placeholderImage:placeholder options:options completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 219 | if (completedBlock) { 220 | completedBlock(image, error, cacheType); 221 | } 222 | }]; 223 | } 224 | 225 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state { 226 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:nil]; 227 | } 228 | 229 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder { 230 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:nil]; 231 | } 232 | 233 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 234 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:nil]; 235 | } 236 | 237 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state completed:(SDWebImageCompletedBlock)completedBlock { 238 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:nil options:0 completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 239 | if (completedBlock) { 240 | completedBlock(image, error, cacheType); 241 | } 242 | }]; 243 | } 244 | 245 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock { 246 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:0 completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 247 | if (completedBlock) { 248 | completedBlock(image, error, cacheType); 249 | } 250 | }]; 251 | } 252 | 253 | - (void)setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock { 254 | [self sd_setBackgroundImageWithURL:url forState:state placeholderImage:placeholder options:options completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 255 | if (completedBlock) { 256 | completedBlock(image, error, cacheType); 257 | } 258 | }]; 259 | } 260 | 261 | - (void)cancelCurrentImageLoad { 262 | // in a backwards compatible manner, cancel for current state 263 | [self sd_cancelImageLoadForState:self.state]; 264 | } 265 | 266 | - (void)cancelBackgroundImageLoadForState:(UIControlState)state { 267 | [self sd_cancelBackgroundImageLoadForState:state]; 268 | } 269 | 270 | @end 271 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/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 | for (UIImage *image in self.images) { 145 | UIGraphicsBeginImageContextWithOptions(size, NO, 0.0); 146 | 147 | [image drawInRect:CGRectMake(thumbnailPoint.x, thumbnailPoint.y, scaledSize.width, scaledSize.height)]; 148 | UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); 149 | 150 | [scaledImages addObject:newImage]; 151 | 152 | UIGraphicsEndImageContext(); 153 | } 154 | 155 | return [UIImage animatedImageWithImages:scaledImages duration:self.duration]; 156 | } 157 | 158 | @end 159 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/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 | if (!data) { 22 | return nil; 23 | } 24 | 25 | UIImage *image; 26 | NSString *imageContentType = [NSData sd_contentTypeForImageData:data]; 27 | if ([imageContentType isEqualToString:@"image/gif"]) { 28 | image = [UIImage sd_animatedGIFWithData:data]; 29 | } 30 | #ifdef SD_WEBP 31 | else if ([imageContentType isEqualToString:@"image/webp"]) 32 | { 33 | image = [UIImage sd_imageWithWebPData:data]; 34 | } 35 | #endif 36 | else { 37 | image = [[UIImage alloc] initWithData:data]; 38 | UIImageOrientation orientation = [self sd_imageOrientationFromImageData:data]; 39 | if (orientation != UIImageOrientationUp) { 40 | image = [UIImage imageWithCGImage:image.CGImage 41 | scale:image.scale 42 | orientation:orientation]; 43 | } 44 | } 45 | 46 | 47 | return image; 48 | } 49 | 50 | 51 | +(UIImageOrientation)sd_imageOrientationFromImageData:(NSData *)imageData { 52 | UIImageOrientation result = UIImageOrientationUp; 53 | CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef)imageData, NULL); 54 | if (imageSource) { 55 | CFDictionaryRef properties = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, NULL); 56 | if (properties) { 57 | CFTypeRef val; 58 | int exifOrientation; 59 | val = CFDictionaryGetValue(properties, kCGImagePropertyOrientation); 60 | if (val) { 61 | CFNumberGetValue(val, kCFNumberIntType, &exifOrientation); 62 | result = [self sd_exifOrientationToiOSOrientation:exifOrientation]; 63 | } // else - if it's not set it remains at up 64 | CFRelease((CFTypeRef) properties); 65 | } else { 66 | //NSLog(@"NO PROPERTIES, FAIL"); 67 | } 68 | CFRelease(imageSource); 69 | } 70 | return result; 71 | } 72 | 73 | #pragma mark EXIF orientation tag converter 74 | // Convert an EXIF image orientation to an iOS one. 75 | // reference see here: http://sylvana.net/jpegcrop/exif_orientation.html 76 | + (UIImageOrientation) sd_exifOrientationToiOSOrientation:(int)exifOrientation { 77 | UIImageOrientation orientation = UIImageOrientationUp; 78 | switch (exifOrientation) { 79 | case 1: 80 | orientation = UIImageOrientationUp; 81 | break; 82 | 83 | case 3: 84 | orientation = UIImageOrientationDown; 85 | break; 86 | 87 | case 8: 88 | orientation = UIImageOrientationLeft; 89 | break; 90 | 91 | case 6: 92 | orientation = UIImageOrientationRight; 93 | break; 94 | 95 | case 2: 96 | orientation = UIImageOrientationUpMirrored; 97 | break; 98 | 99 | case 4: 100 | orientation = UIImageOrientationDownMirrored; 101 | break; 102 | 103 | case 5: 104 | orientation = UIImageOrientationLeftMirrored; 105 | break; 106 | 107 | case 7: 108 | orientation = UIImageOrientationRightMirrored; 109 | break; 110 | default: 111 | break; 112 | } 113 | return orientation; 114 | } 115 | 116 | 117 | 118 | @end 119 | -------------------------------------------------------------------------------- /Grid-List/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 retrieved 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 retrieved 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 retrieved 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 | 89 | 90 | @interface UIImageView (HighlightedWebCacheDeprecated) 91 | 92 | - (void)setHighlightedImageWithURL:(NSURL *)url __deprecated_msg("Method deprecated. Use `sd_setHighlightedImageWithURL:`"); 93 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options __deprecated_msg("Method deprecated. Use `sd_setHighlightedImageWithURL:options:`"); 94 | - (void)setHighlightedImageWithURL:(NSURL *)url completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setHighlightedImageWithURL:completed:`"); 95 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setHighlightedImageWithURL:options:completed:`"); 96 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setHighlightedImageWithURL:options:progress:completed:`"); 97 | 98 | - (void)cancelCurrentHighlightedImageLoad __deprecated_msg("Use `sd_cancelCurrentHighlightedImageLoad`"); 99 | 100 | @end 101 | -------------------------------------------------------------------------------- /Grid-List/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 __typeof(self)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 && (options & SDWebImageAvoidAutoSetImage) && completedBlock) 43 | { 44 | completedBlock(image, error, cacheType, url); 45 | return; 46 | } 47 | else if (image) { 48 | wself.highlightedImage = image; 49 | [wself setNeedsLayout]; 50 | } 51 | if (completedBlock && finished) { 52 | completedBlock(image, error, cacheType, url); 53 | } 54 | }); 55 | }]; 56 | [self sd_setImageLoadOperation:operation forKey:UIImageViewHighlightedWebCacheOperationKey]; 57 | } else { 58 | dispatch_main_async_safe(^{ 59 | NSError *error = [NSError errorWithDomain:SDWebImageErrorDomain code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 60 | if (completedBlock) { 61 | completedBlock(nil, error, SDImageCacheTypeNone, url); 62 | } 63 | }); 64 | } 65 | } 66 | 67 | - (void)sd_cancelCurrentHighlightedImageLoad { 68 | [self sd_cancelImageLoadOperationWithKey:UIImageViewHighlightedWebCacheOperationKey]; 69 | } 70 | 71 | @end 72 | 73 | 74 | @implementation UIImageView (HighlightedWebCacheDeprecated) 75 | 76 | - (void)setHighlightedImageWithURL:(NSURL *)url { 77 | [self sd_setHighlightedImageWithURL:url options:0 progress:nil completed:nil]; 78 | } 79 | 80 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options { 81 | [self sd_setHighlightedImageWithURL:url options:options progress:nil completed:nil]; 82 | } 83 | 84 | - (void)setHighlightedImageWithURL:(NSURL *)url completed:(SDWebImageCompletedBlock)completedBlock { 85 | [self sd_setHighlightedImageWithURL:url options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 86 | if (completedBlock) { 87 | completedBlock(image, error, cacheType); 88 | } 89 | }]; 90 | } 91 | 92 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock { 93 | [self sd_setHighlightedImageWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 94 | if (completedBlock) { 95 | completedBlock(image, error, cacheType); 96 | } 97 | }]; 98 | } 99 | 100 | - (void)setHighlightedImageWithURL:(NSURL *)url options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedBlock)completedBlock { 101 | [self sd_setHighlightedImageWithURL:url options:0 progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 102 | if (completedBlock) { 103 | completedBlock(image, error, cacheType); 104 | } 105 | }]; 106 | } 107 | 108 | - (void)cancelCurrentHighlightedImageLoad { 109 | [self sd_cancelCurrentHighlightedImageLoad]; 110 | } 111 | 112 | @end 113 | -------------------------------------------------------------------------------- /Grid-List/SDWebImage/UIImageView+WebCache.h: -------------------------------------------------------------------------------- 1 | /* 2 | * This file is part of the SDWebImage package. 3 | * (c) Olivier Poitrey 4 | * 5 | * For the full copyright and license information, please view the LICENSE 6 | * file that was distributed with this source code. 7 | */ 8 | 9 | #import "SDWebImageCompat.h" 10 | #import "SDWebImageManager.h" 11 | 12 | /** 13 | * Integrates SDWebImage async downloading and caching of remote images with UIImageView. 14 | * 15 | * Usage with a UITableViewCell sub-class: 16 | * 17 | * @code 18 | 19 | #import 20 | 21 | ... 22 | 23 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 24 | { 25 | static NSString *MyIdentifier = @"MyIdentifier"; 26 | 27 | UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; 28 | 29 | if (cell == nil) { 30 | cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier] 31 | autorelease]; 32 | } 33 | 34 | // Here we use the provided sd_setImageWithURL: method to load the web image 35 | // Ensure you use a placeholder image otherwise cells will be initialized with no image 36 | [cell.imageView sd_setImageWithURL:[NSURL URLWithString:@"http://example.com/image.jpg"] 37 | placeholderImage:[UIImage imageNamed:@"placeholder"]]; 38 | 39 | cell.textLabel.text = @"My Text"; 40 | return cell; 41 | } 42 | 43 | * @endcode 44 | */ 45 | @interface UIImageView (WebCache) 46 | 47 | /** 48 | * Get the current image URL. 49 | * 50 | * Note that because of the limitations of categories this property can get out of sync 51 | * if you use sd_setImage: directly. 52 | */ 53 | - (NSURL *)sd_imageURL; 54 | 55 | /** 56 | * Set the imageView `image` with an `url`. 57 | * 58 | * The download is asynchronous and cached. 59 | * 60 | * @param url The url for the image. 61 | */ 62 | - (void)sd_setImageWithURL:(NSURL *)url; 63 | 64 | /** 65 | * Set the imageView `image` with an `url` and a placeholder. 66 | * 67 | * The download is asynchronous and cached. 68 | * 69 | * @param url The url for the image. 70 | * @param placeholder The image to be set initially, until the image request finishes. 71 | * @see sd_setImageWithURL:placeholderImage:options: 72 | */ 73 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder; 74 | 75 | /** 76 | * Set the imageView `image` with an `url`, placeholder and custom options. 77 | * 78 | * The download is asynchronous and cached. 79 | * 80 | * @param url The url for the image. 81 | * @param placeholder The image to be set initially, until the image request finishes. 82 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 83 | */ 84 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options; 85 | 86 | /** 87 | * Set the imageView `image` with an `url`. 88 | * 89 | * The download is asynchronous and cached. 90 | * 91 | * @param url The url for the image. 92 | * @param completedBlock A block called when operation has been completed. This block has no return value 93 | * and takes the requested UIImage as first parameter. In case of error the image parameter 94 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 95 | * indicating if the image was retrieved from the local cache or from the network. 96 | * The fourth parameter is the original image url. 97 | */ 98 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock; 99 | 100 | /** 101 | * Set the imageView `image` with an `url`, placeholder. 102 | * 103 | * The download is asynchronous and cached. 104 | * 105 | * @param url The url for the image. 106 | * @param placeholder The image to be set initially, until the image request finishes. 107 | * @param completedBlock A block called when operation has been completed. This block has no return value 108 | * and takes the requested UIImage as first parameter. In case of error the image parameter 109 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 110 | * indicating if the image was retrieved from the local cache or from the network. 111 | * The fourth parameter is the original image url. 112 | */ 113 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock; 114 | 115 | /** 116 | * Set the imageView `image` with an `url`, placeholder and custom options. 117 | * 118 | * The download is asynchronous and cached. 119 | * 120 | * @param url The url for the image. 121 | * @param placeholder The image to be set initially, until the image request finishes. 122 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 123 | * @param completedBlock A block called when operation has been completed. This block has no return value 124 | * and takes the requested UIImage as first parameter. In case of error the image parameter 125 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 126 | * indicating if the image was retrieved from the local cache or from the network. 127 | * The fourth parameter is the original image url. 128 | */ 129 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock; 130 | 131 | /** 132 | * Set the imageView `image` with an `url`, placeholder and custom options. 133 | * 134 | * The download is asynchronous and cached. 135 | * 136 | * @param url The url for the image. 137 | * @param placeholder The image to be set initially, until the image request finishes. 138 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 139 | * @param progressBlock A block called while image is downloading 140 | * @param completedBlock A block called when operation has been completed. This block has no return value 141 | * and takes the requested UIImage as first parameter. In case of error the image parameter 142 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 143 | * indicating if the image was retrieved from the local cache or from the network. 144 | * The fourth parameter is the original image url. 145 | */ 146 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 147 | 148 | /** 149 | * Set the imageView `image` with an `url` and optionally a placeholder image. 150 | * 151 | * The download is asynchronous and cached. 152 | * 153 | * @param url The url for the image. 154 | * @param placeholder The image to be set initially, until the image request finishes. 155 | * @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values. 156 | * @param progressBlock A block called while image is downloading 157 | * @param completedBlock A block called when operation has been completed. This block has no return value 158 | * and takes the requested UIImage as first parameter. In case of error the image parameter 159 | * is nil and the second parameter may contain an NSError. The third parameter is a Boolean 160 | * indicating if the image was retrieved from the local cache or from the network. 161 | * The fourth parameter is the original image url. 162 | */ 163 | - (void)sd_setImageWithPreviousCachedImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock; 164 | 165 | /** 166 | * Download an array of images and starts them in an animation loop 167 | * 168 | * @param arrayOfURLs An array of NSURL 169 | */ 170 | - (void)sd_setAnimationImagesWithURLs:(NSArray *)arrayOfURLs; 171 | 172 | /** 173 | * Cancel the current download 174 | */ 175 | - (void)sd_cancelCurrentImageLoad; 176 | 177 | - (void)sd_cancelCurrentAnimationImagesLoad; 178 | 179 | /** 180 | * Show activity UIActivityIndicatorView 181 | */ 182 | - (void)setShowActivityIndicatorView:(BOOL)show; 183 | 184 | /** 185 | * set desired UIActivityIndicatorViewStyle 186 | * 187 | * @param style The style of the UIActivityIndicatorView 188 | */ 189 | - (void)setIndicatorStyle:(UIActivityIndicatorViewStyle)style; 190 | 191 | @end 192 | 193 | 194 | @interface UIImageView (WebCacheDeprecated) 195 | 196 | - (NSURL *)imageURL __deprecated_msg("Use `sd_imageURL`"); 197 | 198 | - (void)setImageWithURL:(NSURL *)url __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:`"); 199 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:placeholderImage:`"); 200 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:placeholderImage:options`"); 201 | 202 | - (void)setImageWithURL:(NSURL *)url completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:completed:`"); 203 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:placeholderImage:completed:`"); 204 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:placeholderImage:options:completed:`"); 205 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedBlock)completedBlock __deprecated_msg("Method deprecated. Use `sd_setImageWithURL:placeholderImage:options:progress:completed:`"); 206 | 207 | - (void)setAnimationImagesWithURLs:(NSArray *)arrayOfURLs __deprecated_msg("Use `sd_setAnimationImagesWithURLs:`"); 208 | 209 | - (void)cancelCurrentArrayLoad __deprecated_msg("Use `sd_cancelCurrentAnimationImagesLoad`"); 210 | 211 | - (void)cancelCurrentImageLoad __deprecated_msg("Use `sd_cancelCurrentImageLoad`"); 212 | 213 | @end 214 | -------------------------------------------------------------------------------- /Grid-List/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 | static char TAG_ACTIVITY_INDICATOR; 15 | static char TAG_ACTIVITY_STYLE; 16 | static char TAG_ACTIVITY_SHOW; 17 | 18 | @implementation UIImageView (WebCache) 19 | 20 | - (void)sd_setImageWithURL:(NSURL *)url { 21 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:nil]; 22 | } 23 | 24 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder { 25 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:nil]; 26 | } 27 | 28 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 29 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:nil]; 30 | } 31 | 32 | - (void)sd_setImageWithURL:(NSURL *)url completed:(SDWebImageCompletionBlock)completedBlock { 33 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:completedBlock]; 34 | } 35 | 36 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletionBlock)completedBlock { 37 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:completedBlock]; 38 | } 39 | 40 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletionBlock)completedBlock { 41 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:completedBlock]; 42 | } 43 | 44 | - (void)sd_setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock { 45 | [self sd_cancelCurrentImageLoad]; 46 | objc_setAssociatedObject(self, &imageURLKey, url, OBJC_ASSOCIATION_RETAIN_NONATOMIC); 47 | 48 | if (!(options & SDWebImageDelayPlaceholder)) { 49 | dispatch_main_async_safe(^{ 50 | self.image = placeholder; 51 | }); 52 | } 53 | 54 | if (url) { 55 | 56 | // check if activityView is enabled or not 57 | if ([self showActivityIndicatorView]) { 58 | [self addActivityIndicator]; 59 | } 60 | 61 | __weak __typeof(self)wself = self; 62 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:url options:options progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 63 | [wself removeActivityIndicator]; 64 | if (!wself) return; 65 | dispatch_main_sync_safe(^{ 66 | if (!wself) return; 67 | if (image && (options & SDWebImageAvoidAutoSetImage) && completedBlock) 68 | { 69 | completedBlock(image, error, cacheType, url); 70 | return; 71 | } 72 | else if (image) { 73 | wself.image = image; 74 | [wself setNeedsLayout]; 75 | } else { 76 | if ((options & SDWebImageDelayPlaceholder)) { 77 | wself.image = placeholder; 78 | [wself setNeedsLayout]; 79 | } 80 | } 81 | if (completedBlock && finished) { 82 | completedBlock(image, error, cacheType, url); 83 | } 84 | }); 85 | }]; 86 | [self sd_setImageLoadOperation:operation forKey:@"UIImageViewImageLoad"]; 87 | } else { 88 | dispatch_main_async_safe(^{ 89 | [self removeActivityIndicator]; 90 | if (completedBlock) { 91 | NSError *error = [NSError errorWithDomain:SDWebImageErrorDomain code:-1 userInfo:@{NSLocalizedDescriptionKey : @"Trying to load a nil url"}]; 92 | completedBlock(nil, error, SDImageCacheTypeNone, url); 93 | } 94 | }); 95 | } 96 | } 97 | 98 | - (void)sd_setImageWithPreviousCachedImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletionBlock)completedBlock { 99 | NSString *key = [[SDWebImageManager sharedManager] cacheKeyForURL:url]; 100 | UIImage *lastPreviousCachedImage = [[SDImageCache sharedImageCache] imageFromDiskCacheForKey:key]; 101 | 102 | [self sd_setImageWithURL:url placeholderImage:lastPreviousCachedImage ?: placeholder options:options progress:progressBlock completed:completedBlock]; 103 | } 104 | 105 | - (NSURL *)sd_imageURL { 106 | return objc_getAssociatedObject(self, &imageURLKey); 107 | } 108 | 109 | - (void)sd_setAnimationImagesWithURLs:(NSArray *)arrayOfURLs { 110 | [self sd_cancelCurrentAnimationImagesLoad]; 111 | __weak __typeof(self)wself = self; 112 | 113 | NSMutableArray *operationsArray = [[NSMutableArray alloc] init]; 114 | 115 | for (NSURL *logoImageURL in arrayOfURLs) { 116 | id operation = [SDWebImageManager.sharedManager downloadImageWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { 117 | if (!wself) return; 118 | dispatch_main_sync_safe(^{ 119 | __strong UIImageView *sself = wself; 120 | [sself stopAnimating]; 121 | if (sself && image) { 122 | NSMutableArray *currentImages = [[sself animationImages] mutableCopy]; 123 | if (!currentImages) { 124 | currentImages = [[NSMutableArray alloc] init]; 125 | } 126 | [currentImages addObject:image]; 127 | 128 | sself.animationImages = currentImages; 129 | [sself setNeedsLayout]; 130 | } 131 | [sself startAnimating]; 132 | }); 133 | }]; 134 | [operationsArray addObject:operation]; 135 | } 136 | 137 | [self sd_setImageLoadOperation:[NSArray arrayWithArray:operationsArray] forKey:@"UIImageViewAnimationImages"]; 138 | } 139 | 140 | - (void)sd_cancelCurrentImageLoad { 141 | [self sd_cancelImageLoadOperationWithKey:@"UIImageViewImageLoad"]; 142 | } 143 | 144 | - (void)sd_cancelCurrentAnimationImagesLoad { 145 | [self sd_cancelImageLoadOperationWithKey:@"UIImageViewAnimationImages"]; 146 | } 147 | 148 | 149 | #pragma mark - 150 | - (UIActivityIndicatorView *)activityIndicator { 151 | return (UIActivityIndicatorView *)objc_getAssociatedObject(self, &TAG_ACTIVITY_INDICATOR); 152 | } 153 | 154 | - (void)setActivityIndicator:(UIActivityIndicatorView *)activityIndicator { 155 | objc_setAssociatedObject(self, &TAG_ACTIVITY_INDICATOR, activityIndicator, OBJC_ASSOCIATION_RETAIN); 156 | } 157 | 158 | - (void)setShowActivityIndicatorView:(BOOL)show{ 159 | objc_setAssociatedObject(self, &TAG_ACTIVITY_SHOW, [NSNumber numberWithBool:show], OBJC_ASSOCIATION_RETAIN); 160 | } 161 | 162 | - (BOOL)showActivityIndicatorView{ 163 | return [objc_getAssociatedObject(self, &TAG_ACTIVITY_SHOW) boolValue]; 164 | } 165 | 166 | - (void)setIndicatorStyle:(UIActivityIndicatorViewStyle)style{ 167 | objc_setAssociatedObject(self, &TAG_ACTIVITY_STYLE, [NSNumber numberWithInt:style], OBJC_ASSOCIATION_RETAIN); 168 | } 169 | 170 | - (int)getIndicatorStyle{ 171 | return [objc_getAssociatedObject(self, &TAG_ACTIVITY_STYLE) intValue]; 172 | } 173 | 174 | - (void)addActivityIndicator { 175 | if (!self.activityIndicator) { 176 | self.activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:[self getIndicatorStyle]]; 177 | self.activityIndicator.translatesAutoresizingMaskIntoConstraints = NO; 178 | 179 | dispatch_main_async_safe(^{ 180 | [self addSubview:self.activityIndicator]; 181 | 182 | [self addConstraint:[NSLayoutConstraint constraintWithItem:self.activityIndicator 183 | attribute:NSLayoutAttributeCenterX 184 | relatedBy:NSLayoutRelationEqual 185 | toItem:self 186 | attribute:NSLayoutAttributeCenterX 187 | multiplier:1.0 188 | constant:0.0]]; 189 | [self addConstraint:[NSLayoutConstraint constraintWithItem:self.activityIndicator 190 | attribute:NSLayoutAttributeCenterY 191 | relatedBy:NSLayoutRelationEqual 192 | toItem:self 193 | attribute:NSLayoutAttributeCenterY 194 | multiplier:1.0 195 | constant:0.0]]; 196 | }); 197 | } 198 | 199 | dispatch_main_async_safe(^{ 200 | [self.activityIndicator startAnimating]; 201 | }); 202 | 203 | } 204 | 205 | - (void)removeActivityIndicator { 206 | if (self.activityIndicator) { 207 | [self.activityIndicator removeFromSuperview]; 208 | self.activityIndicator = nil; 209 | } 210 | } 211 | 212 | @end 213 | 214 | 215 | @implementation UIImageView (WebCacheDeprecated) 216 | 217 | - (NSURL *)imageURL { 218 | return [self sd_imageURL]; 219 | } 220 | 221 | - (void)setImageWithURL:(NSURL *)url { 222 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:nil]; 223 | } 224 | 225 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder { 226 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:nil]; 227 | } 228 | 229 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options { 230 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:nil]; 231 | } 232 | 233 | - (void)setImageWithURL:(NSURL *)url completed:(SDWebImageCompletedBlock)completedBlock { 234 | [self sd_setImageWithURL:url placeholderImage:nil options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 235 | if (completedBlock) { 236 | completedBlock(image, error, cacheType); 237 | } 238 | }]; 239 | } 240 | 241 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder completed:(SDWebImageCompletedBlock)completedBlock { 242 | [self sd_setImageWithURL:url placeholderImage:placeholder options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 243 | if (completedBlock) { 244 | completedBlock(image, error, cacheType); 245 | } 246 | }]; 247 | } 248 | 249 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options completed:(SDWebImageCompletedBlock)completedBlock { 250 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 251 | if (completedBlock) { 252 | completedBlock(image, error, cacheType); 253 | } 254 | }]; 255 | } 256 | 257 | - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedBlock)completedBlock { 258 | [self sd_setImageWithURL:url placeholderImage:placeholder options:options progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { 259 | if (completedBlock) { 260 | completedBlock(image, error, cacheType); 261 | } 262 | }]; 263 | } 264 | 265 | - (void)cancelCurrentArrayLoad { 266 | [self sd_cancelCurrentAnimationImagesLoad]; 267 | } 268 | 269 | - (void)cancelCurrentImageLoad { 270 | [self sd_cancelCurrentImageLoad]; 271 | } 272 | 273 | - (void)setAnimationImagesWithURLs:(NSArray *)arrayOfURLs { 274 | [self sd_setAnimationImagesWithURLs:arrayOfURLs]; 275 | } 276 | 277 | @end 278 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/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 | -------------------------------------------------------------------------------- /Grid-List/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /Grid-List/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 代码下载地址https://github.com/leejayID/List2Grid 8 | 9 | #import "ViewController.h" 10 | #import "GridListCollectionViewCell.h" 11 | #import "GridListModel.h" 12 | #import "NSObject+Property.m" 13 | 14 | #define ScreenWidth ([UIScreen mainScreen].bounds.size.width) 15 | 16 | @interface ViewController () 17 | 18 | @property (nonatomic, strong) UICollectionView *collectionView; 19 | @property (nonatomic, strong) NSMutableArray *dataSource; 20 | @property (weak, nonatomic) IBOutlet UIButton *swithBtn; 21 | 22 | @end 23 | 24 | @implementation ViewController 25 | { 26 | BOOL _isGrid; 27 | } 28 | 29 | #pragma mark - Getters 30 | 31 | - (NSMutableArray *)dataSource 32 | { 33 | if (!_dataSource) { 34 | _dataSource = [NSMutableArray array]; 35 | } 36 | return _dataSource; 37 | } 38 | 39 | - (UICollectionView *)collectionView 40 | { 41 | if (!_collectionView) 42 | { 43 | UICollectionViewFlowLayout *flowlayout = [[UICollectionViewFlowLayout alloc] init]; 44 | //设置滚动方向 45 | [flowlayout setScrollDirection:UICollectionViewScrollDirectionVertical]; 46 | //左右间距 47 | flowlayout.minimumInteritemSpacing = 2; 48 | //上下间距 49 | flowlayout.minimumLineSpacing = 2; 50 | _collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(2 , 2 , self.view.bounds.size.width - 4, self.view.bounds.size.height - 4) collectionViewLayout:flowlayout]; 51 | _collectionView.delegate = self; 52 | _collectionView.dataSource = self; 53 | _collectionView.showsVerticalScrollIndicator = NO; 54 | _collectionView.showsHorizontalScrollIndicator = NO; 55 | [_collectionView setBackgroundColor:[UIColor clearColor]]; 56 | //注册cell 57 | [_collectionView registerClass:[GridListCollectionViewCell class] forCellWithReuseIdentifier:kCellIdentifier_CollectionViewCell]; 58 | } 59 | return _collectionView; 60 | } 61 | 62 | - (void)viewDidLoad { 63 | [super viewDidLoad]; 64 | // Do any additional setup after loading the view, typically from a nib. 65 | 66 | // 默认列表视图 67 | _isGrid = NO; 68 | 69 | NSString *path = [[NSBundle mainBundle] pathForResource:@"product" ofType:@"json"]; 70 | NSData *data = [NSData dataWithContentsOfFile:path]; 71 | NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil]; 72 | 73 | [self.view addSubview:self.collectionView]; 74 | 75 | NSArray *products = dict[@"wareInfo"]; 76 | for (id obj in products) { 77 | [self.dataSource addObject:[GridListModel objectWithDictionary:obj]]; 78 | } 79 | } 80 | 81 | - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section 82 | { 83 | return self.dataSource.count; 84 | } 85 | 86 | - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath 87 | { 88 | GridListCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kCellIdentifier_CollectionViewCell forIndexPath:indexPath]; 89 | cell.isGrid = _isGrid; 90 | cell.model = self.dataSource[indexPath.row]; 91 | return cell; 92 | } 93 | 94 | - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath 95 | { 96 | if (_isGrid) { 97 | return CGSizeMake((ScreenWidth - 6) / 2, (ScreenWidth - 6) / 2 + 40); 98 | } else { 99 | return CGSizeMake(ScreenWidth - 4, (ScreenWidth - 6) / 4 + 20); 100 | } 101 | } 102 | 103 | #pragma mark - Action 104 | 105 | - (IBAction)onBtnClick:(id)sender 106 | { 107 | _isGrid = !_isGrid; 108 | [self.collectionView reloadData]; 109 | 110 | if (_isGrid) { 111 | [self.swithBtn setImage:[UIImage imageNamed:@"product_list_grid_btn"] forState:0]; 112 | } else { 113 | [self.swithBtn setImage:[UIImage imageNamed:@"product_list_list_btn"] forState:0]; 114 | } 115 | } 116 | 117 | - (void)didReceiveMemoryWarning { 118 | [super didReceiveMemoryWarning]; 119 | // Dispose of any resources that can be recreated. 120 | } 121 | 122 | @end 123 | -------------------------------------------------------------------------------- /Grid-List/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // Grid-List 4 | // 5 | // Created by LeeJay on 16/10/17. 6 | // Copyright © 2016年 Mob. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # 列表和网格视图的相互切换 2 | ## 前言 3 | 在很多电商 app 中，都有列表视图和网格视图的相互切换。例如京东和淘宝。 4 | 5 | 先来看下效果图，下图为京东商城的截图。 6 | 7 | ![列表视图](http://upload-images.jianshu.io/upload_images/1321491-b9288719a7cbb41f.jpg) 8 | 9 | ![网格视图](http://upload-images.jianshu.io/upload_images/1321491-44b84a69a0745a5e.jpg) 10 | 11 | 很多人看到这个，第一眼想到的是用``` TableView ```和``` CollectionView ```来做切换，笔者刚开始也是认为这么做，后来发现还有一个非常的简单方法，就可以实现这个功能。 12 | ## 正文 13 | 14 | * 首先创建一个``` CollectionView ```。 15 | 16 | ```objc 17 | - (UICollectionView *)collectionView 18 | { 19 | if (!_collectionView) 20 | { 21 | UICollectionViewFlowLayout *flowlayout = [[UICollectionViewFlowLayout alloc] init]; 22 | //设置滚动方向 23 | [flowlayout setScrollDirection:UICollectionViewScrollDirectionVertical]; 24 | //左右间距 25 | flowlayout.minimumInteritemSpacing = 2; 26 | //上下间距 27 | flowlayout.minimumLineSpacing = 2; 28 | _collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(2 , 2 , self.view.bounds.size.width - 4, self.view.bounds.size.height - 4) collectionViewLayout:flowlayout]; 29 | _collectionView.delegate = self; 30 | _collectionView.dataSource = self; 31 | _collectionView.showsVerticalScrollIndicator = NO; 32 | _collectionView.showsHorizontalScrollIndicator = NO; 33 | [_collectionView setBackgroundColor:[UIColor clearColor]]; 34 | //注册cell 35 | [_collectionView registerClass:[GridListCollectionViewCell class] forCellWithReuseIdentifier:kCellIdentifier_CollectionViewCell]; 36 | } 37 | return _collectionView; 38 | } 39 | ``` 40 | * 然后去京东商城抓取``` json ```数据，再去解析数据装入模型，``` objectWithDictionary: ```是将字典转化为模型，这个工具是我用 **Runtime** 写的，一行代码解析数据，具体使用方法可以参考我简书上另一篇文章[【Objective-C中的Runtime】](http://www.jianshu.com/p/3e050ec3b759)。 41 | 42 | ```objc 43 | - (void)viewDidLoad 44 | { 45 | [super viewDidLoad]; 46 | // Do any additional setup after loading the view, typically from a nib. 47 | 48 | // 默认列表视图 49 | _isGrid = NO; 50 | 51 | NSString *path = [[NSBundle mainBundle] pathForResource:@"product" ofType:@"json"]; 52 | NSData *data = [NSData dataWithContentsOfFile:path]; 53 | NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil]; 54 | 55 | [self.view addSubview:self.collectionView]; 56 | 57 | NSArray *products = dict[@"wareInfo"]; 58 | for (id obj in products) { 59 | [self.dataSource addObject:[GridListModel objectWithDictionary:obj]]; 60 | } 61 | } 62 | ``` 63 | * 再去自定义``` CollectionViewCell ```，给``` cell ```添加一个属性``` isGrid ```，用来判断是列表还是格子视图。 64 | 65 | .h文件： 66 | 67 | ```objc 68 | #import 69 | 70 | #define kCellIdentifier_CollectionViewCell @"GridListCollectionViewCell" 71 | 72 | @class GridListModel; 73 | 74 | @interface GridListCollectionViewCell : UICollectionViewCell 75 | 76 | /** 77 | 0：列表视图，1：格子视图 78 | */ 79 | @property (nonatomic, assign) BOOL isGrid; 80 | 81 | @property (nonatomic, strong) GridListModel *model; 82 | 83 | @end 84 | ``` 85 | .m文件 86 | 87 | ```objc 88 | #import "GridListCollectionViewCell.h" 89 | #import "GridListModel.h" 90 | #import "UIImageView+WebCache.h" 91 | 92 | #define ScreenWidth ([UIScreen mainScreen].bounds.size.width) 93 | 94 | @interface GridListCollectionViewCell () 95 | 96 | @property (nonatomic, strong) UIImageView *imageV; 97 | @property (nonatomic, strong) UILabel *titleLabel; 98 | @property (nonatomic, strong) UILabel *priceLabel; 99 | 100 | @end 101 | 102 | @implementation GridListCollectionViewCell 103 | 104 | - (instancetype)initWithFrame:(CGRect)frame 105 | { 106 | self = [super initWithFrame:frame]; 107 | if (self) { 108 | [self configureUI]; 109 | } 110 | return self; 111 | } 112 | 113 | - (void)configureUI 114 | { 115 | _imageV = [[UIImageView alloc] initWithFrame:CGRectZero]; 116 | [self.contentView addSubview:_imageV]; 117 | 118 | _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero]; 119 | _titleLabel.numberOfLines = 0; 120 | _titleLabel.font = [UIFont boldSystemFontOfSize:14]; 121 | [self.contentView addSubview:_titleLabel]; 122 | 123 | _priceLabel = [[UILabel alloc] initWithFrame:CGRectZero]; 124 | _priceLabel.textColor = [UIColor redColor]; 125 | _priceLabel.font = [UIFont systemFontOfSize:16]; 126 | [self.contentView addSubview:_priceLabel]; 127 | } 128 | 129 | - (void)setIsGrid:(BOOL)isGrid 130 | { 131 | _isGrid = isGrid; 132 | 133 | if (isGrid) { 134 | _imageV.frame = CGRectMake(5, 5, self.bounds.size.width - 60, self.bounds.size.width - 60); 135 | _titleLabel.frame = CGRectMake(5, self.bounds.size.width - 45, ScreenWidth/2, 20); 136 | _priceLabel.frame = CGRectMake(5, self.bounds.size.width - 20, ScreenWidth/2, 20); 137 | } else { 138 | _imageV.frame = CGRectMake(5, 5, self.bounds.size.height - 10, self.bounds.size.height - 10); 139 | _titleLabel.frame = CGRectMake(self.bounds.size.height + 10, 0, ScreenWidth/2, self.bounds.size.height - 20);; 140 | _priceLabel.frame = CGRectMake(self.bounds.size.height + 10, self.bounds.size.height - 30, ScreenWidth/2, 20);; 141 | } 142 | } 143 | 144 | - (void)setModel:(GridListModel *)model 145 | { 146 | _model = model; 147 | 148 | [_imageV sd_setImageWithURL:[NSURL URLWithString:model.imageurl]]; 149 | _titleLabel.text = model.wname; 150 | _priceLabel.text = [NSString stringWithFormat:@"￥%.2f",model.jdPrice]; 151 | } 152 | 153 | @end 154 | 155 | ``` 156 | 157 | * 再添加一个切换视图的按钮，按钮的点击事件如下： 158 | 159 | ```objc 160 | #pragma mark - Action 161 | 162 | - (IBAction)onBtnClick:(id)sender 163 | { 164 | _isGrid = !_isGrid; 165 | [self.collectionView reloadData]; 166 | 167 | if (_isGrid) { 168 | [self.swithBtn setImage:[UIImage imageNamed:@"product_list_grid_btn"] forState:0]; 169 | } else { 170 | [self.swithBtn setImage:[UIImage imageNamed:@"product_list_list_btn"] forState:0]; 171 | } 172 | } 173 | ``` 174 | 175 | * 最后还要设置一下切换时的``` CollectionView ```的``` ItemSize ```。 176 | 177 | ```objc 178 | - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath 179 | { 180 | if (_isGrid) { 181 | return CGSizeMake((ScreenWidth - 6) / 2, (ScreenWidth - 6) / 2 + 40); 182 | } else { 183 | return CGSizeMake(ScreenWidth - 4, (ScreenWidth - 6) / 4 + 20); 184 | } 185 | } 186 | ``` 187 | 这样子就大体实现了列表视图和网格视图的相互切换，是不是炒鸡简单。 188 | 189 | Demo 运行效果的Gif 190 | 191 | ![](./Untitled.gif) 192 | 193 | ## 最后 194 | 由于笔者水平有限，文中如果有错误的地方，还望大神指出。或者有更好的方法和建议，我们可以一起交流。 195 | 196 | 附上本文的 demo 下载链接[【GitHub】](https://github.com/leejayID/List2Grid)、[【Code4App】](http://www.code4app.com/forum.php?mod=viewthread&tid=11041&extra=page%3D1%26filter%3Dsortid%26sortid%3D1)，配合 demo 一起看文章，效果会更佳。 197 | 198 | 如果你看完后觉得对你有所帮助，还望在 GitHub 上点个 star。赠人玫瑰，手有余香。 199 | -------------------------------------------------------------------------------- /Untitled.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/leejayID/List2Grid/bb5eb39f2154c8fde81454589cc3061a2dab75ab/Untitled.gif --------------------------------------------------------------------------------