以下代码可以在自定义的播放页添加AirPlay设备选择按钮
MPVolumeView *volumeView = [ [MPVolumeView alloc] init] ; |
[volumeView setShowsVolumeSlider:NO]; |
[volumeView sizeToFit]; |
[self.view addSubview:volumeView]; |
The picker is visible only when there is an AirPlay output device available.
原文：http://www.cnblogs.com/moyazi/p/4607133.html