ios - 带有视频 PHAsset 的 requestImageDataForAsset 返回带有指向照片的 imageData

Question

iOS9.3beta3,

PHImageManager requestImageDataForAsset 返回指向照片的 imageData，尽管 PHAssert 是在设备上捕获的视频 Assets 。

文档 says :

"requestImageDataForAsset(_:options:resultHandler:)

... If the version option is set to PHImageRequestOptionsVersionCurrent,Photos provides rendered image data, including the results of any edits that have been made to the asset content. Otherwise, Photos provides theoriginally captured image data for the asset."

这是 iOS9.3 中的错误吗？

阿米尔。

Answer 1

对我来说简单的解决方案

+ (void)getAssetData:(NSString *)ident completeBlock:(void (^)(NSData *assetData))completeBlock {
    PHFetchResult *fetchResult = [PHAsset fetchAssetsWithLocalIdentifiers:@[ident] options:nil];
    if (fetchResult && [fetchResult count] == 0) {
        if (completeBlock) {
            completeBlock(nil);
        }
        return;
    }

    PHAsset *asset = fetchResult.firstObject;
    if (asset.mediaType == PHAssetMediaTypeVideo) {
        [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:nil resultHandler:^(AVAsset *asset, AVAudioMix *audioMix, NSDictionary *info) {
            if ([asset isKindOfClass:[AVURLAsset class]]) {
                AVURLAsset* urlAsset = (AVURLAsset*)asset;
                NSNumber *size;
                [urlAsset.URL getResourceValue:&size forKey:NSURLFileSizeKey error:nil];
                NSData *data = [NSData dataWithContentsOfURL:urlAsset.URL];
                completeBlock(data);
            } else {
                completeBlock(nil);
            }
        }];
    } else {
        [[PHImageManager defaultManager] requestImageDataForAsset:fetchResult.firstObject options:nil resultHandler:^(NSData * _Nullable imageData, NSString * _Nullable dataUTI, UIImageOrientation orientation, NSDictionary * _Nullable info) {
            completeBlock(imageData);
        }];
    }
}