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Editorial Team
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Asked: 2026-05-13T14:06:10+00:00

Using a navigation based view hierarchy. I have a root view controller, and multiple

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Using a navigation based view hierarchy. I have a root view controller, and multiple view controllers that branch out from the same when a button is pressed. When a user presses the back button on the UINavigationBar, the current viewcontroller is popped and the display animates back to the rootviewcontroller.

The problem is, I want the viewcontrollers to UNLOAD whenever they are popped. Seems like they are not unloading because when I go back to them they are still in the state they were when they were popped.

How do I unload the viewcontrollers after navigating back to the rootviewcontroller?

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1 Answer

  1. Editorial Team

    -viewUnload is called after the application receives low-memory notification.

    It is the default implementation of -didReceiveMemoryWarning that calls -viewUnload.

    What you probably want to do is put what you want to do into -viewDidDisappear based on what you’ve described.

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