ios - Window coordinates changing when alertview is visible while switching rootviewcontroller -

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I am facing window coordinates as a new UINavigationController as windows Is rootViewController . That's why I have created a simple sample project that presents it again.

I launch the app with the initial action ViewController with the following action button 

  - (IBAction) buttonTap: (ID) sender {[[[UILartview Alok] initWithTitle: @ "" Message: @ "New VC in 3 Seconds" Representative: Cancel CancelTintital: @ "OK" Other Button Titles: Zero] Show]; [Selector to self: @sillector (delay call) with object: after zero: 3];  
 
} 
   - (zero) delay call {newview controller * NVC = [[newview controller alloc] initWithNibName: @ "newview controller" bundle: zero]; UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController: nvc]; [[UIApplication ShareApp] .keyWindow setRootViewController: nav];  
 
} 
 
  The new viewer is in landscape mode. But comes down as a screen shot if any  UIAlertView  is shown before the change of the  rootViewController  window and has not been dismissed. new vice president with wrong coordinates (should be in landscape mode) 
 
 If I ' Show alerts view or dismiss the code> Root ViewController  by changing the new  ViewController  to correct  alertview . 
 
 Anything can be done to prevent this: changing the  rootview controller  and showing  alert view  we are part of a larger app that we make We are unknowingly we can not change it. So this flow will have to get some solution.


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