使用＆＃39; hidden = YES＆＃39;获取PHAsset谓词崩溃

Question

如documentation中所列，PHAsset支持hidden (or isHidden)提取密钥。但是，当我尝试获取隐藏的资源时，我的应用程序会崩溃并显示以下日志：

  

***由于未捕获的异常终止应用＆＃39; NSInvalidArgumentException＆＃39;，原因：＆＃39;获取选项中不支持的谓词：hidden == 1＆＃39;

以下是示例代码：

PHFetchOptions *options = [[PHFetchOptions alloc] init];
options.wantsIncrementalChangeDetails = YES;
options.includeAllBurstAssets = YES;
options.includeHiddenAssets = YES;
options.predicate = [NSPredicate predicateWithFormat:@"hidden = YES"];

PHFetchResult *fetchResult = [PHAsset fetchAssetsWithOptions:options];

return fetchResult;

Answer 1

我在第一个答案中没有仔细阅读这个问题，也许这会有所帮助

如果您只想隐藏相册，为什么不使用？ 亚型：PHAssetCollectionSubtypeSmartAlbumAllHidden

PHFetchOptions *options = [[PHFetchOptions alloc] init];
options.wantsIncrementalChangeDetails = YES;
options.includeAllBurstAssets = YES;
options.includeHiddenAssets = YES;
options.predicate = [NSPredicate predicateWithFormat:@"mediaType == %d",PHAssetMediaTypeImage];

PHFetchResult *albums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum subtype:PHAssetCollectionSubtypeSmartAlbumAllHidden options:nil];