图片转换取出需要转换方向！！

 

- (int)imageOrientation {     return [[self valueForProperty:ALAssetPropertyOrientation] intValue];}  //高清图- (UIImage *)fastGetFullResolutionImage {    CGImageRef ref = [[self  defaultRepresentation] fullResolutionImage];    return [UIImage imageWithCGImage:ref scale:1 orientation:[self imageOrientation]];}

 

 

简单类快捷入口：链接: http://pan.baidu.com/s/1bnxvsiN 密码: 73ud

 

//出处：http://www.cnblogs.com/madordie/////  声明：写此类时候只为了获取图库中的图片。由于真机不在手边，只在模拟器上测试（iOS7.1）//       如需要获得其他视频之类的可以自行更改fillAssetGroups函数//////  本地照片管理//  (单例模式)//  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]];//注：//fastGetThumbnailImage为自定义类别，见#import "ALAsset+JGFastGetPhoto.h"//

关键代码：

//如果需要获取别的更改下面的addObject位置#pragma mark - 填充 _assetGroups- (void)fillAssetGroups {    ALAssetsLibrary *assetsLibrary = [JGPhotoAlbumManager sharedAssetsLibrary];//生成整个photolibrary句柄的实例    [assetsLibrary enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
    //获取所有group        if (group) {            [group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {
    //从group里面                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.");    }];}

@interface ALAsset (JGFastGetPhoto)//图片URL- (NSString *)fastGetURLString;- (NSURL *)fastGetURL;//缩略图- (UIImage *)fastGetThumbnailImage;//全屏图- (UIImage *)fastGetFullScreenImage;//高清图- (UIImage *)fastGetFullResolutionImage;//获取时间- (NSString *)fastGetDataString;//缩略图- (UIImage *)fastGetThumbnailImage {    CGImageRef  ref = [self thumbnail];    return [UIImage imageWithCGImage:ref];}