问题：
在iOS 13.0系统上，启用应用外录制功能会崩溃，具体错误：
Thread 1: "Application tried to present UIModalTransitionStylePartialCurl to or from non-fullscreen view controller <UIApplicationRotationFollowingController: 0x12fb77ab0>."
image.png
解决：
- 通过
hookUIViewController的presentViewController:animated:completion:方法； - 设置
modalPresentationStyle=UIModalPresentationFullScreen；
若怕动影响全局，单独判断当前类是否为RPBroadcastPickerStandaloneViewController即可。
