ios MPMoviePlayerController在播放视频时检测未找到网址

我有一个视频播放器，可以从某个给定网址加载视频并播放。每当给定url处的资源无效并且服务器返回带有错误响应的错误代码时，我都无法获得相同的回调。我订阅了以下通知。ios MPMoviePlayerController在播放视频时检测未找到网址

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlaybackStateDidChange:) name:MPMoviePlayerPlaybackStateDidChangeNotification object:nil]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.playerController]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieDurationAvailable:) name:MPMovieDurationAvailableNotification object:nil]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieLoadStateDidChange:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willChangePlayingMovie:) name:MPMoviePlayerNowPlayingMovieDidChangeNotification object:nil];

我正在用hls视频播放视频。我的媒体有hls和mp4网址。每当视频失败时，我都想回到mp4。

编辑：只是为了澄清，没有得到回调意味着通知不会触发。对于混淆抱歉。在viewDidLoad中

self.playerController = [[MPMoviePlayerController alloc] init]; 
self.playerController.shouldAutoplay = YES; 
self.playerController.controlStyle = MPMovieControlStyleNone; 

[self.playerController.view setFrame:self.playerView.bounds]; 
self.playerController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
[self.playerController.view translatesAutoresizingMaskIntoConstraints]; 



[self.playerView addSubview:self.playerController.view]; 
self.playerController.view.userInteractionEnabled = NO; 
self.playerController.view.backgroundColor = [UIColor colorWithRed:0.2 green:0.2 blue:0.2 alpha:1.0]; 
self.playerController.backgroundView.backgroundColor = [UIColor colorWithRed:0.2 green:0.2 blue:0.2 alpha:1.0]; 
//To hide top and bottom Bar 

self.playerController.view.backgroundColor = [UIColor blackColor]; 
self.playerController.backgroundView.backgroundColor = [UIColor blackColor];

代码段，同时设置URL（从viewdidappear，通知也在这里加入，该代码是在开始）与MPMoviePlayerViewController错误响应

NSURL *fileUrl; 
NSString *fileExtension; 
fileUrl = self.content.media.hlsUrl; 
if ([Reachability reachabilityForInternetConnection].isReachable) { 
      [self.playerController setContentURL:fileUrl]; 

      BOOL isFirstTimeUpdate = [[NSUserDefaults standardUserDefaults] boolForKey:@"IS_FIRST_TIME_UPDATE"]; 
      if(isFirstTimeUpdate == NO){ 
       [self.playerController pause]; 
      } 
      else{ 
       [self.playerController play]; 
      } 
      [self.activityIndicator startAnimating]; 
     }else{ 
      self.errorLabel.text = kZErNoInternet; 
      self.errorView.hidden = NO; 
     }

来源

2015-05-29 hridayesh

你能告诉我一些你的代码？尤其是关于何时加载网址。 –

我编辑了这个问题。谢谢eugene – hridayesh

只是一个快速的：你什么时候添加设置通知？在创建/重新创建self.playerController实例之前还是之后？ –

处理错误代码： -

由于您已添加此notif ication

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.playerController];

(void)movieFinished:(NSNotification *)notification 
{ 
    NSDictionary *notificationUserInfo = [notification userInfo]; 
    NSNumber *resultValue = [notificationUserInfo objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey]; 
    MPMovieFinishReason reason = [resultValue intValue]; 
    if (reason == MPMovieFinishReasonPlaybackError) 
    { 
     NSError *mediaPlayerError = [notificationUserInfo objectForKey:@"error"]; 
     if (mediaPlayerError) 
     { 
      NSLog(@"playback failed with error description: %@", [mediaPlayerError localizedDescription]); 
     } 
     else 
     { 
      NSLog(@"playback failed without any given reason"); 
     } 
    } 
}

刚刚从拿到这个参考link： -

来源

2015-05-29 07:29:15 Vizllx

问题是这个回调没有被调用。 – hridayesh

然后你必须以这种方式描述问题，你说这个“ - 每当给定url的资源无效并且服务器返回带有错误响应的错误代码时，我无法获得相同的任何回调”， – Vizllx

U还没有提到你的通知没有解雇。 – Vizllx

ios MPMoviePlayerController在播放视频时检测未找到网址

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