objective-c - 如何在 tvOS 上播放来自 Cloudkit 的视频？

Question

我有一个问题我一直试图解决一天，我厌倦了用头撞墙。有人知道怎么做吗？

1 号效果很好

1. 效果很好

   - (void) viewDidLoad {
       [super viewDidLoad];
       NSURL *url = [NSURL URLWithString:@"http://techslides.com/demos/sample-videos/small.mp4"];
       AVPlayer *avPlayer = [[AVPlayer alloc] initWithURL:url];
       self.player = avPlayer;
       [self.player play];
   }
   

2. 不工作

   - (void) viewDidLoad {
       [super viewDidLoad];
       CKAsset *asset = record[@"VideoFile"];
       AVPlayer *avPlayer = [[AVPlayer alloc] initWithURL:asset.fileURL];
       self.player = avPlayer;
       [self.player play];
   }
   

3. 不工作

   - (void) viewDidLoad {
       [super viewDidLoad];
       CKAsset *asset = record[@"VideoFile"];
       NSString *fileName = record[@"videoFileKey"];
       NSData *data = [NSData dataWithContentsOfURL:asset.fileURL];
       NSString *cachesDirectoryPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0];
       NSString *path = [cachesDirectoryPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.mp4", fileName]];
       [data writeToFile:path atomically:YES];
   
       if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
            NSURL *url = [NSURL URLWithString:path];
            AVPlayer *avPlayer = [[AVPlayer alloc] initWithURL:url];
            self.player = avPlayer;
            [self.player play];
       }
    }