software-mansion
Draft: fix(iOS): Reorder back button setup logic so iOS renders it correctly when displayMode=minimal
Description
Partially fixes #2991. Unfortunately, not all cases are covered; see below.
When navigating from screen with headerShown: false to a screen that has a back button with displayMode=minimal, the width of the button appears to be the same as if it was meant for the first screen, with space allocated for a label that is not visible.
Changes
Simply moving the line that updates the displayMode after the rest of back button's setup code, solves the problem for apps which use displayMode=minimal.
Before
https://github.com/user-attachments/assets/d9abc075-ba47-44d9-a350-78f7199b64cc
After
https://github.com/user-attachments/assets/149044b3-572b-451c-bdbb-a5a5331e9190
What still needs fixing
When mixing headerShown=false, displayMode=default and displayMode=minimal, the screen with displayMode=minimal still doesn't work. For now, please use workarounds suggested by the community in #2991.
https://github.com/user-attachments/assets/68a864f7-a8f1-4567-8df7-d2de27e5d282
Testing
Use Test2991, change headerShown, and headerBackButtonDisplayMode. For changes to take effect, it's good to close and reopen the app on the phone.
It looked fine-ish until I tried the other way around, from first to third, to first, to second. Now second is always minimal. I'd say it's not an improvement then. Converting it to Draft.