Objective c 如何在tvOS上播放Cloudkit的视频？

我有一个一天来一直在努力解决的问题，我厌倦了把头撞到墙上。有人知道怎么做吗

1号很好用

- (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];
}

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];
}

不起作用

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

- (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];
    }
 }

不起作用

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

- (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];
    }
 }

---

在选项3中，您在哪里设置url？如果像选项1一样使用AVPlayer代码会怎么样？url来自asset.fileURL，文件名来自cloud kit中的记录。如果你检查了应用程序的容器，文件被正确保存，并且可以在quicktime中提取和播放，那么它就不会在缓存目录中的AVPlayer中播放