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Editorial Team
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Asked: 2026-05-13T09:46:38+00:00

I’m using a UINavigationController to manage my UIViewControllers hierarchy. For one of these UIViewController,

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I’m using a UINavigationController to manage my UIViewControllers hierarchy. For one of these UIViewController, i need to change its view bounds programmatically (depending on specific conditions) so i used setBounds and it’s working fine.

My issue is this : when i change this view bounds, then push another UIViewController to the UINavigationController stack and then pop the last UIViewController, my bounds changement are lost. I guess it’s because my UIView is redrawn but i thought the bounds modification would still be live.

I can change my UIView bounds again after the view appeared but the user will notice the view bounds modification.

Any tips? Is it a common situation or is it because my UIView is loaded from a XIB and i missed a parameter or something?

Thanks 🙂

Edit : just noticed my UIView bounds are changed right before pushing the new UIViewController to the stack (during the animation)

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1 Answer

  1. Editorial Team

    You probably want to do all of your bounds-setting (including the first time) in -viewWillAppear:. This should get called before you’re put on screen in both the initial push and the pop case.

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