Ios AVPlayerViewController播放Mp3等音乐的代理方法是什么

我想在显示以下图片的所有按钮上添加操作。我通过..添加此视图。。以下代码--

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因此，请帮助我添加此按钮上的操作

是。。。。。我解决这些问题。。。正确的代码是--

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在

avplayervcontroller

的

avplayervlayer*player

属性上使用KVO。

AVPlayerViewController *playerViewController = [[AVPlayerViewController alloc] init];

playerViewController.view.frame = CGRectMake(10,10, _bgView.frame.size.width-20, _bgView.frame.size.height-20);

playerViewController.player = [AVPlayer playerWithURL:url1];

[_bgView addSubview:playerViewController.view];

_bgView.autoresizesSubviews = TRUE;

_playerViewController = [[AVPlayerViewController alloc] init];
_playerViewController.view.frame=CGRectMake(10,10, _bgView.frame.size.width-20, _bgView.frame.size.height-20);
_playerViewController.player = [AVPlayer playerWithURL:url1];