MPMoviePlayer-Notification不会被调用

Question

HI,

我想使用MPMoviePlayerViewController播放电影并收听MPMoviePlayerPlaybackDidFinishNotification,但它不会被调用.有什么想法吗？得到任何提示将有所帮助..谢谢你这是我的代码:

NSString *url   =   [[NSBundle mainBundle] pathForResource:[sender contentName] ofType:@"m4v"];
    MPMoviePlayerViewController* moviePlayerController = [[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL fileURLWithPath:url] ];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackComplete:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController];

    moviePlayerController.moviePlayer.controlStyle = MPMovieControlStyleFullscreen;
    [self presentMoviePlayerViewControllerAnimated:moviePlayerController];
    [moviePlayerController.moviePlayer play]; 
}


- (void) moviePlayBackComplete:(NSNotification*) notification {
    NSLog(@"moviePlayBackComplete complete");

    MPMoviePlayerController* moviePlayerController = [notification object];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController];  

    [self dismissMoviePlayerViewControllerAnimated];
    [moviePlayerController release];
}

Answer 1

你试图从a获得通知,MPMovePlayerViewController但我很确定只MPMoviePlayerController提供它们.尝试并更改您的通知设置

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackComplete:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController.moviePlayer];