iOS删除照片代码

iOS删除照片代码

/// 删除照片，按照时间倒序
/// @param count 数量
- (void)clearPhotos:(NSInteger)count {
    
    PHFetchOptions *options = [[PHFetchOptions alloc] init];
    //yes为顺序，no为倒序
    options.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:NO]];
    options.includeHiddenAssets = YES;
    options.includeAllBurstAssets = YES;
    options.includeAssetSourceTypes = PHAssetSourceTypeUserLibrary|PHAssetSourceTypeCloudShared|PHAssetSourceTypeiTunesSynced;
    options.fetchLimit = count;
    
    PHFetchResult *fetchRequest = [PHAsset fetchAssetsWithOptions:options];
    
    [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
        
        NSMutableArray *assets = [NSMutableArray array];
        [fetchRequest enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            BOOL b = [obj canPerformEditOperation:PHAssetEditOperationDelete];
            if (b) {
                [assets addObject:obj];
            }
        }];
        
        if ([assets count]>0) {
            [PHAssetChangeRequest deleteAssets:assets];
        }
        
    } completionHandler:^(BOOL success, NSError * _Nullable error) {
        if (success) {
            NSLog(@"success");
        }else {
            NSLog(@"error");
        }
        
    }];
}