按下主页按钮或电源按钮时无法关闭MPMoviePlayerViewController

Question

基本上，我有一个 MainViewController ，它提供了一个 MPMoviePlayerViewControllerExtended ，当用户点击主页按钮或电源按钮时，我想解除 MPMoviePlayerViewControllerExtended 。

我在MPMoviePlayerControllerExtended.m中试过这个：

-(void)viewWillDisappear {
     [self dismissMoviePlayerViewControllerAnimated];
}
-(void)viewDidDisappear {
     [self dismissMoviePlayerViewControllerAnimated];
}

但它不起作用，显然当按下Home或Power按钮时不会调用它们。

感谢任何帮助。

Answer 1

尝试添加:(BOOL)animated

-(void)viewWillDisappear:(BOOL)animated {
     [self dismissMoviePlayerViewControllerAnimated];
}
-(void)viewDidDisappear:(BOOL)animated {
     [self dismissMoviePlayerViewControllerAnimated];
}

也可能想要包含

[super viewWillDisappear:animated]

和

[super viewDidDisappear:animated]

在某些地方

-(void)viewWillDisappear:(BOOL)animated {
     [self dismissMoviePlayerViewControllerAnimated];
     [super viewWillDisappear:animated]
}
-(void)viewDidDisappear:(BOOL)animated {
     [self dismissMoviePlayerViewControllerAnimated];
     [super viewDidDisappear:animated]
}

Answer 2

由于未调用这两种方法，我不得不使用通知。

在 MPMoviePlayerViewControllerExtended.m

中

- (void)viewDidLoad
{
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                          selector:@selector(dismissModalViewControllerAnimated:) 
                                          name:UIApplicationDidEnterBackgroundNotification                  
                                          object:nil];
}