设备旋转后设置前一个视图控制器的布局

Question

I have a UIViewController vc2 which is on the navigation stack after vc1 . When I rotate the device while on vc2 , I need vc1 to also update its UI. However when I try and do this in willAnimateRotationToInterfaceOrientation it doesn't work.

After I pop vc2 off of the stack, I try to update vc1 UI in viewWillAppear or viewDidLoad but it doesn't work. It works if I do it in viewDidAppear or viewWillLayoutSubviews , but it updates the UI only after the view appears so the user can see it animating on the screen.

Is there a way to set it before the view appears so the user doesn't see the subviews animating?

Answer 1

The only solution I've found to work so far is the one I mentioned in my question where I update the UI in viewDidAppear or viewWillLayoutSubviews . Unfortunately, you'll see your UI components animate to the proper position on screen when the view controller appears. Hopefully someone can find a better solution.