Home/ Questions/Q 6607199
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T19:28:40+00:00

Situation: my app needs to present a full screen modal view whenever it becomes

  • 0

Situation: my app needs to present a full screen modal view whenever it becomes active (from background) to ask the user for a PIN. All fine.
Unless: if the user previews a file using QLPreviewController, leaves the app and comes back, the PIN input controller will be presented modally from the QLPreviewController which I’m keeping a reference to. The PIN input is shown but when it dismisses, I see a checkerboard-styled background which is even scrollable. Seems to be some leftover of the PreviewController but the actual preview data is no longer shown. Any idea what could cause that?

Do I have to reload the contents of the preview somehow?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I had similar issue and I’ve managed to pin down the problem to either viewWillDisappear or viewDidDisappear methods. My solution was to subclass QLPreviewController and overwrite those methods with empty implementation i.e. skipping the call to super. I don’t know if it’s very safe, though I haven’t encountered issues and it solved my problem.

    • 0