WeiXinPhoto

使用：

SGMAlbumViewController* viewVC = [[SGMAlbumViewController alloc] init];
    viewVC.assetsLibrary =assetLibrary;
    viewVC.limitNum = 3;//限制选择张数，不设置即不限制
    [viewVC doSelectedBlock:^(NSMutableArray *assetDicArray) { //包含 {@"asset":ALAsset,@"assetIndex":0,@"select":@YES}
        [selectedPhotoArray addObjectsFromArray:assetDicArray];
        [mainTable reloadData];
    }];
    
    UINavigationController* nav = [[UINavigationController alloc]initWithRootViewController:viewVC];
    [self presentViewController:nav animated:YES completion:nil];