自定义按钮在AVPlayer iOS 11中不起作用,但在iOS 11下却能完美工作?

我知道这可能是重复的问题,但已经存在的问题没有解决方案,所以,我再次要求可能开始悬赏问题。

AVPlayer *player = [AVPlayer playerWithURL:videoURL];

// create a player view controller
avcontroller = [[AVPlayerViewController alloc]init];
avcontroller.player = player;
[player play];


NSNotificationCenter *noteCenter = [NSNotificationCenter defaultCenter];
[noteCenter addObserverForName:AVPlayerItemDidPlayToEndTimeNotification
                        object:nil
                         queue:nil
                    usingBlock:^(NSNotification *note) {

                        NSLog(@"Video end");
                        self.avcontroller.player = nil;
                        [self.avcontroller.view removeFromSuperview];
                        [self.view addSubview:delegate.tabViewControllerObj.tabBarController.view];
                    }];

_skip =[UIButton buttonWithType:UIButtonTypeCustom];
[_skip addTarget:self action:@selector(btnSkipTapped)
 forControlEvents:UIControlEventTouchUpInside];
[_skip setTitle:@"Skip" forState:UIControlStateNormal];
_skip.layer.borderWidth = 2.0f;
_skip.layer.cornerRadius = 12; 
_skip.clipsToBounds = YES;
_skip.layer.borderColor = [UIColor whiteColor].CGColor;

// show the view controller
[self addChildViewController:avcontroller];
[avcontroller.view addSubview:_skip];
[avcontroller.view bringSubviewToFront:_skip];
[self.view addSubview:avcontroller.view];
avcontroller.view.frame = self.view.frame;

}

-(void)viewDidLayoutSubviews{
  [super viewDidLayoutSubviews];

 _skip.frame = CGRectMake((self.view.frame.size.width-140),(self.view.frame.size.height-150),100.0,35.0);
}

这是按钮点击功能:

- (IBAction)btnSkipTapped{

NSLog(@"Skip button clicked");
self.avcontroller.player = nil;
[self.avcontroller.view removeFromSuperview];
[self.view addSubview:delegate.tabViewControllerObj.tabBarController.view];
}

此代码将完美地显示按钮,但点击按钮时,它并没有调用btnSkipTapped函数。 任何帮助都将不胜感激!