當播放器contentURL發生變化時MPMoviePlayerViewController消失

Question

我知道，有幾十個類似的問題。我全部閱讀，仍然無法找到答案。 我用presentModalViewController方法顯示視頻與視頻。當用戶進行滑動時，我希望下一個視頻在同一個播放器中開始。但是，當我嘗試更改視頻播放器的contentURL時，視圖會消失 - 就像dismissModalViewControllerAnimated方法被調用一樣（但事實並非如此）。

@implementation ViewController 

-(void)viewDidAppear:(BOOL)animated 
{ 
    [super viewDidAppear:animated]; 

    if(!moviePlayerViewController) 
    { 
     NSURL *url = [NSURL URLWithString:@"http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8"]; 

     moviePlayerViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:url];  

     UISwipeGestureRecognizer *leftSwipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(leftSwipe:)]; 
     leftSwipeRecognizer.direction = UISwipeGestureRecognizerDirectionLeft; 
     [moviePlayerViewController.view addGestureRecognizer:leftSwipeRecognizer]; 

     [self presentModalViewController:moviePlayerViewController animated:YES]; 
    } 
} 

-(void)leftSwipe:(id)sender 
{ 
    moviePlayerViewController.moviePlayer.contentURL = 
     moviePlayerViewController.moviePlayer.contentURL; // no matter what exactly URL here. 
    [moviePlayerViewController.moviePlayer play]; // view disappears even before this line is reached 
} 

@end 

Answer 1

奇怪的事情：我昨天花了整整一天的時間試圖找到一個答案是徒勞的，我在發佈問題後的一分鐘後發現它。

http://josebolanos.wordpress.com/2011/09/28/dismissing-mpmovieplayerviewcontroller-the-right-way/