Problem with window priority in IOS

In the project, the video playback when the network switch needs to pop-up alertview remind users, suddenly found the screen when the playback of the view added to the Keywindow when the Aleryview blocked.

Because the view is loaded directly into the screen when the switch

[UIApplication Sharedapplication].keywindow

So it should be caused by the keywindo switch, because the Alertview pop-up, Keywindow becomes the Alertview window.

Click on uiwindow for more details

So the solution is very simple, when adding playerview, directly add to the

[Appdelegate Sharedinstance].window

　Because his priority is the normal level, Alertview will always be on the Playerview.

Priority issues must be considered when adding views to window

End

Problem with window priority in IOS