AVPlayerViewController无法播放视频并显示Quicktime徽标

Question

我正在尝试使用XCode 6中引入的新AVPlayerViewController播放视频。

要播放视频，我已经完成了此设置。

1. 使用本地mp4文件播放视频

2. 扩展的AVPlayerViewController

播放器设置代码：

-(void)setupPlayer
{
    NSString* filePath = [[NSBundle mainBundle] pathForResource:@"exodus_trailer" ofType:@"mp4"];
    NSLog(@"File Path : %@",filePath);
    AVAsset *avAsset = [AVAsset assetWithURL:[NSURL URLWithString:filePath]];
    AVPlayerItem *avPlayerItem =[[AVPlayerItem alloc]initWithAsset:avAsset];
    self.player = [[AVPlayer alloc]initWithPlayerItem:avPlayerItem];
    [self.player addObserver:self forKeyPath:@"status" options:0 context:nil];
    [self.player play];
}

KVO处理：

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if (object == self.player && [keyPath isEqualToString:@"status"])
    {
        if (self.player.status == AVPlayerStatusFailed)
        {
            NSLog(@"AVPlayer Failed");
        }
        else if (self.player.status == AVPlayerStatusReadyToPlay)
        {
            NSLog(@"AVPlayerStatusReadyToPlay");
           [self.player play];
        }
        else if (self.player.status == AVPlayerItemStatusUnknown)
        {
            NSLog(@"AVPlayer Unknown");
        }
    }
}

问题 ：

KVO日志正在打印AVPlayerStatusReadyToPlay，文件路径似乎正常。 以前的视图至少显示了具有所有默认控件的播放器，但是现在没有任何更改，它开始显示没有任何控件的Quick time logo。 显示此徽标是什么意思？ 我在这里做错了什么？

屏幕截图：

Answer 1

这与您想做的完全一样。 代码的问题是您没有使用文件路径，请使用它来加载文件路径NSURL * url = [NSURL fileURLWithPath：urlString]

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSString *urlString = [[NSBundle mainBundle] pathForResource:@"testfile" ofType:@"mp4"];
    NSURL *url = [NSURL fileURLWithPath:urlString];

    self.player = [[AVPlayer alloc] initWithURL:url];
    [self.player addObserver:self forKeyPath:@"status"
                                      options:NSKeyValueObservingOptionNew
                                      context:NULL];

}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if (object == self.player) {
        AVPlayerStatus status = [change[NSKeyValueChangeNewKey] integerValue];
        if (status == AVPlayerStatusReadyToPlay) {
            [self.player play];
            [self.player removeObserver:self forKeyPath:@"status"];
        }
    }
    else {
        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
    }
}

@end