MPMoviePlayerController仅在通用应用程序中引发错误

Z时代
2024-01-10
分类：问答

我的应用程序在应用程序启动时以全屏模式播放视频。一切都从3.0到4.1完美无缺地工作。MPMoviePlayerController仅在通用应用程序中引发错误

但是，如果我为通用应用编译相同的代码，它将在iPad上工作，但不再适用于iPhone（模拟器）。

有没有人解决过这个问题？

下面的代码：

if ([self respondsToSelector:@selector(presentMoviePlayerViewControllerAnimated:)]) { 
    videoPath = [[NSBundle mainBundle] pathForResource:@"portrait" ofType:@"mov"]; 
    videoURL = [NSURL fileURLWithPath:videoPath]; 
    MPMoviePlayerController *aMoviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:videoURL]; 
    self.moviePlayerController = aMoviePlayerController; 
    [aMoviePlayerController release]; 
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startVideo:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil]; 
    [moviePlayerController.view setFrame:self.view.bounds]; 
    [self.view addSubview:moviePlayerController.view]; 
    moviePlayerController.controlStyle = MPMovieControlStyleNone; 
} else { 
    //OS < 3.2 
    videoPath = [[NSBundle mainBundle] pathForResource:@"landscape" ofType:@"mov"]; 
    videoURL = [NSURL fileURLWithPath:videoPath]; 
    MPMoviePlayerController *aMoviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:videoURL]; 
    self.moviePlayerController = aMoviePlayerController; 
    [aMoviePlayerController release]; 
    moviePlayerController.movieControlMode = MPMovieControlModeHidden; 
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startVideo:) name:MPMoviePlayerContentPreloadDidFinishNotification object:nil]; 
}

而这里的错误：

-[MPMoviePlayerControllerOld view]: unrecognized selector sent to instance
0x7924470

即使我试图阻止这个是这样的...

if ([moviePlayerController respondsToSelector:@selector(view)]) { 
    [moviePlayerController.view setFrame:self.view.bounds]; 
    }

...的错误仍然被抛出。

回答：

我得到了同样的错误几天前。它只需要将基础sdk从3.2更改为4.1 希望它有帮助

回答：

我没有解释错误，但。但是，这似乎工作（需要测试的旧设备）：

if ([self respondsToSelector:@selector(presentMoviePlayerViewControllerAnimated:)]) { 
     videoPath = [[NSBundle mainBundle] pathForResource:@"portrait" ofType:@"mov"]; 
     videoURL = [NSURL fileURLWithPath:videoPath]; 
     /* NEW */ 
     MPMoviePlayerViewController *aMoviePlayerViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:videoURL]; 
     aMoviePlayerViewController.moviePlayer.view.frame = self.view.bounds; 
     aMoviePlayerViewController.moviePlayer.controlStyle = MPMovieControlStyleNone; 
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startVideo:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil]; 
     [aMoviePlayerViewController.moviePlayer play]; 
     [self.view addSubview:aMoviePlayerViewController.view]; 
     self.moviePlayerController = aMoviePlayerViewController; 
    } else { 
     //OS < 3.2 
     videoPath = [[NSBundle mainBundle] pathForResource:@"landscape" ofType:@"mov"]; 
     videoURL = [NSURL fileURLWithPath:videoPath]; 
     MPMoviePlayerController *aMoviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:videoURL]; 
     self.moviePlayerController = aMoviePlayerController; 
     aMoviePlayerController.movieControlMode = MPMovieControlModeHidden; 
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startVideo:) name:MPMoviePlayerContentPreloadDidFinishNotification object:nil]; 
     [aMoviePlayerController release]; 
    }