无法使用MPMoviePlayerViewController播放video
我用下面的ViewController.m创build了一个新的项目。 当我运行应用程序，我可以看到一个预期的来源/大小（38,100,250,163）的盒子，但它是黑色的，没有video播放。 Xcode有一个奇怪的输出：
2012-08-23 15:36:45.559 VideoTest1[11398:c07] [MPAVController] Autoplay: Disabling autoplay for pause 2012-08-23 15:36:45.560 VideoTest1[11398:c07] [MPAVController] Autoplay: Disabling autoplay 2012-08-23 15:37:18.186 VideoTest1[11398:c07] [MPAVController] Autoplay: Skipping autoplay, disabled (for current item: 1, on player: 0) 请注意，video转换Videora iPhone转换器，并在Xcode中播放确定（所以这不是一个video问题）; video的path是好的，因为当我指定demo-iPhone1（这不存在），我得到一个零例外。 我尝试在模拟器和iPhone上：总是黑匣子。 有任何想法吗？
#import "ViewController.h" #import <MediaPlayer/MediaPlayer.h> @interface ViewController () @end @implementation ViewController - (void)moviePlaybackComplete:(NSNotification *)notification { MPMoviePlayerController *moviePlayerController = [notification object]; [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController]; [moviePlayerController.view removeFromSuperview]; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSString *filepath = [[NSBundle mainBundle] pathForResource:@"demo-iPhone" ofType:@"mp4"]; NSURL *fileURL = [NSURL fileURLWithPath:filepath]; MPMoviePlayerController *moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlaybackComplete:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController]; [moviePlayerController.view setFrame:CGRectMake(38, 100, 250, 163)]; [self.view addSubview:moviePlayerController.view]; [moviePlayerController play]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } @end
我刚刚解决了这行代码的类似问题。 玩家控制器现在显示出来，video播放完美：
@property (nonatomic, strong) MPMoviePlayerController *moviePlayer; // @synthesize moviePlayer = _moviePlayer; // [self.moviePlayer prepareToPlay];
修改以适应您的环境。
我通过添加playercontroller.moviePlayer.movieSourceType = MPMovieSourceTypeFile;解决类似的问题playercontroller.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
你用ARC吗？ 如果是这样，你必须保留MPMoviePlayerController！
将其添加到您的界面
@property (nonatomic, strong) MPMoviePlayerController *controller;
检查最后一行viewDidLoad
- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSString *filepath = [[NSBundle mainBundle] pathForResource:@"demo-iPhone" ofType:@"mp4"]; NSURL *fileURL = [NSURL fileURLWithPath:filepath]; MPMoviePlayerController *moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlaybackComplete:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController]; [moviePlayerController.view setFrame:CGRectMake(38, 100, 250, 163)]; [self.view addSubview:moviePlayerController.view]; [moviePlayerController play]; [self setController:moviePlayerController]; }
另外检查video格式。 我不断收到我的示例video.m4v （我从苹果网站下载）这个错误。 最终我用一个不同的video剪辑，它是.mp4 ，它工作正常。 许多错误仍然popup在我的控制台上。
2013-01-22 15:44:04.850 VideoTesting[4497:c07] [MPAVController] Autoplay: Likely to keep up or full buffer: 0 2013-01-22 15:44:04.851 VideoTesting[4497:c07] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up. 2013-01-22 15:44:04.853 VideoTesting[4497:c07] [MPAVController] Autoplay: Disabling autoplay for pause 2013-01-22 15:44:04.853 VideoTesting[4497:c07] [MPAVController] Autoplay: Disabling autoplay 2013-01-22 15:44:04.861 VideoTesting[4497:c07] [MPAVController] Autoplay: Enabling autoplay
该video仍然播放。