Ios MPMoviePlayerViewController在按下home（主页）按钮时自动关闭

我调用doPlayMovie方法在iPad上播放一些文件，但当我按Home按钮尝试将我的应用程序切换到background时，播放器自动关闭

有没有办法让球员永远在那里不被解雇

-(MPMoviePlayerViewController*)moviePlayerController{
    if(!_moviePlayerController){
        _moviePlayerController = [[MPMoviePlayerViewController alloc]init];
    }
    return _moviePlayerController;
}

-(MPMoviePlayerController*)moviePlayer{
    return self.moviePlayerController.moviePlayer;
}

-(void)doPlayMovie:(NSString *)filepath{
    self.moviePlayerController = nil;

    NSURL *playUrl = [NSURL fileURLWithPath:filepath];
    self.moviePlayer.contentURL = playUrl;
    [self.moviePlayer play];

    [self presentMoviePlayerViewControllerAnimated:self.moviePlayerController];
}

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您需要在plist文件中为音频指定UIBackgroundModes（仅适用于iOS>4）。请参阅设置应用程序以在后台播放音频的步骤