iphone – 进入后台时MPMoviePlayerViewController变黑

概述我有MPMoviePlayerViewController的问题,当应用程序进入后台然后我再次启动它或去另一个viewControllers电影变黑！我的电影在我的菜单背景中播放,这是我的代码： EIDTED代码： -(void)viewDidLoad { [self moviePlayer2]; } - (void) moviePlayer2 { 我有MPMovIEPlayerVIEwController的问题,当应用程序进入后台然后我再次启动它或去另一个vIEwControllers电影变黑！我的电影在我的菜单背景中播放,这是我的代码：

EIDTED代码：

-(voID)vIEwDIDLoad {        [self movIEPlayer2];    }    - (voID) movIEPlayer2 {    Nsstring *path = [[NSBundle mainBundle] pathForResource:@"cloud" ofType:@"mp4"];    player = [[MPMovIEPlayerVIEwController alloc] initWithContentURL:[NSURL fileURLWithPath:path]];    player.vIEw.userInteractionEnabled = YES;        player.movIEPlayer.repeatMode = YES;    player.movIEPlayer.scalingMode = MPMovIEScalingModeFill;    player.movIEPlayer.controlStyle = MPMovIEControlStyleNone;    [[NSNotificationCenter defaultCenter] addobserver:self                                              selector:@selector(movIEPlayBackStateChange:)                                                  name:MPMovIEPlayerPlaybackStateDIDChangeNotification                                               object:[player movIEPlayer]];     [[player movIEPlayer] play];    [self.vIEw addSubvIEw:player.vIEw]; }-(voID) movIEPlayBackStateChange: (NSNotification *) note {    [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMovIEPlayerPlaybackStateDIDChangeNotification object:[player movIEPlayer]];    [[player movIEPlayer] play];    //[player release];    NSLog(@"FINISHED");}

谢谢 .

解决方法 我想你可能需要在下面添加代码：

[[NSNotificationCenter defaultCenter] addobserver:self                                              selector:@selector(movIEPlayBackStateChange:)                                                  name:MPMovIEPlayerPlaybackStateDIDChangeNotification                                               object:[player movIEPlayer]];

并在movIEPlayBackStateChange方法中处理电影状态.
当电影正在播放并且应用程序在后台进入时,电影将暂停,因此当应用程序从后台返回时,您需要使电影恢复如下所示.如果没有,电影将保持暂停状态.这就是你的应用变黑的原因.

[[player movIEPlayer] play];

然后电影将继续播放.
添加两个方法,当应用程序进入后台并从后台返回时,您应该调用这两个方法：

-(voID) pauseMovIEInBackGround{   [player movIEPlayer] pause];   [player.vIEw removeFromSupervIEw];}-(voID) resumeMovIEInFrontGround{   [self.vIEw addSubvIEw:player.vIEw];   [[player movIEPlayer] play];}

希望这可以帮助你.

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