Question

我想直接从画廊播放视频，我已经编写了这段代码，我可以从中获取图像和视频网址，但我无法自动播放视频，任何代码或任何帮助表示赞赏。

    ALAssetsLibrary* library = [[ALAssetsLibrary alloc] init];

    [library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
        if (group) {
            [group setAssetsFilter:[ALAssetsFilter allVideos]];
            [group enumerateAssetsUsingBlock:^(ALAsset *asset, NSUInteger index, BOOL *stop){
                if (asset){

                    NSDictionary *meta = [[asset defaultRepresentation] metadata];

                    if ([[asset valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypeVideo]) {
                        // asset is a video
                        NSLog(@"See Asset: %@", asset);




                    }

//                    NSLog(@"%@",asset);
//                    NSLog(@"%@",meta);

                }
            }];
        }
    } failureBlock:^(NSError *error) {
        NSLog(@"error enumerating AssetLibrary groups %@\n", error);
    }];

Answer 1

在项目中包含MediaPlayer框架，然后在要查看视频的视图控制器中包含：

#import <MediaPlayer/MediaPlayer.h>

@interface MyViewController ()
@property (strong, nonatomic) MPMoviePlayerController *mp;
@end

然后，像这样的东西来初始化它并将它添加到你的层次结构中：

- (void)playUrl:(NSURL *)contentURL {

    MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:contentURL];
    player.view.frame = // some CGRect here that fits your view

    [player prepareToPlay];
    [self.view addSubview:player.view];
    self.mp = player;
}

视频播放直接来自画廊

1 个答案: