ios - MPMoviePlayerController 仅显示黑屏

Question

我试图在启动屏幕显示后直接播放视频，但我所看到的只是黑屏，状态栏显示在顶部。目前，这就是应用程序执行的所有操作，因此据我所知，没有其他任何事情会停止视频播放。

视频在 iPad 上播放没有任何问题，格式似乎正确等等。我的目标是 iOS 7，我尝试使用不同的视频，也尝试使用 MPMoviePlayerViewController。所有最终都会得到相同的结果。

这是我正在使用的代码。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    NSURL *movieURL = [[NSBundle mainBundle] URLForResource:@"IntroMovie" withExtension:@"mov"];

    MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];

    [moviePlayer prepareToPlay];

    [self.window addSubview:moviePlayer.view];

    [moviePlayer play];

    return YES;
}

Answer 1

您需要创建 MPMoviePlayerViewController 对象而不是前一个。应在 makeKeyAndVisible 之后调用 playMovie 方法。如果仍然不起作用，请尝试添加断点并检查给定视频的 URL 是否正确以及是否已更改添加到复制捆绑资源。希望这有帮助

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.
    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];
        [self playMovie];
    return YES;
}


-(void)playMovie
{
    NSURL *movieURL;
    NSBundle *bundle = [NSBundle mainBundle];
    if(bundle != nil)
    {
        NSString *moviePath = [bundle pathForResource:@"intro" ofType:@"m4v"];
        if (moviePath)
        {
            movieURL = [NSURL fileURLWithPath:moviePath];

        }
    }


    moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:movieURL];
    moviePlayer.moviePlayer.controlStyle = MPMovieControlStyleNone;
    moviePlayer.moviePlayer.scalingMode = MPMovieScalingModeFill;
    [self.viewController presentViewController:moviePlayer animated:NO completion:^{

    }];
    [moviePlayer.moviePlayer play];




}