[原]iOS7.1擷取圖庫所有照片的方法封裝

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今天一直在弄這個東西，各種度，網上有不少這樣的例子和講解，但是就是沒有正常擷取出來。。很鬱悶！

後來終於各種嘗試，為了讓小夥伴們少折騰會，特寫出此簡單的類。

技術能力有限，多有不足，還請多多指教！

 

簡單類快捷入口：

連結: http://pan.baidu.com/s/1hqvJLru 密碼: 1jd0

 

//出處：http://www.cnblogs.com/madordie/////  聲明：寫此類時候只為了擷取圖庫中的圖片。由於真機不在手邊，只在模擬器上測試（iOS7.1）//       如需要獲得其他視頻之類的可以自行更改fillAssetGroups函數//////  本地照片管理//  (單例模式)//  用法：//JGPhotoAlbumManager *manager = [JGPhotoAlbumManager shared];//[manager setSaveAllPhotos:^(NSArray *images) {//    if (!_tableData) {//        _tableData = [[NSMutableArray alloc] init];//    }//    [_tableData removeAllObjects];//    [_tableData addObjectsFromArray:images];//    [_tableView reloadData];//}];////  cell 填充：//ALAsset *asset = _tableData[indexPath.row];//[cell.imageView setImage:[asset fastGetThumbnailImage]];//註：//fastGetThumbnailImage為自訂類別，見#import "ALAsset+JGFastGetPhoto.h"//

關鍵代碼：

    //如果需要擷取別的更改下面的addObject位置#pragma mark - 填充 _assetGroups- (void)fillAssetGroups {    ALAssetsLibrary *assetsLibrary = [JGPhotoAlbumManager sharedAssetsLibrary];//產生整個photolibrary控制代碼的執行個體    [assetsLibrary enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {//擷取所有group        if (group) {            [group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {//從group裡面                NSString* assetType = [result valueForProperty:ALAssetPropertyType];                if ([assetType isEqualToString:ALAssetTypePhoto]) {                    NSLog(@"Photo");                    [_assetGroups addObject:result];                }else if([assetType isEqualToString:ALAssetTypeVideo]){                    NSLog(@"Video");                }else if([assetType isEqualToString:ALAssetTypeUnknown]){                    NSLog(@"Unknow AssetType");                }                                NSDictionary *assetUrls = [result valueForProperty:ALAssetPropertyURLs];                NSUInteger assetCounter = 0;                for (NSString *assetURLKey in assetUrls) {                    NSLog(@"Asset URL %lu = %@",(unsigned long)assetCounter,[assetUrls objectForKey:assetURLKey]);                }                                NSLog(@"Representation Size = %lld",[[result defaultRepresentation]size]);            }];        } else {                        //stop            dispatch_async(dispatch_get_main_queue(), ^(void) {                _saveAllPhotos(_assetGroups);            });        }            } failureBlock:^(NSError *error) {        NSLog(@"Enumerate the asset groups failed.");    }];}

擷取所有

@interface ALAsset (JGFastGetPhoto)//圖片URL- (NSString *)fastGetURLString;- (NSURL *)fastGetURL;//縮圖- (UIImage *)fastGetThumbnailImage;//全屏圖- (UIImage *)fastGetFullScreenImage;//高清圖- (UIImage *)fastGetFullResolutionImage;//擷取時間- (NSString *)fastGetDataString;//縮圖- (UIImage *)fastGetThumbnailImage {    CGImageRef  ref = [self thumbnail];    return [UIImage imageWithCGImage:ref];}

轉換

 

[原]iOS7.1擷取圖庫所有照片的方法封裝