NativeScript / NativeScript/NativeScript
List picker shows "?" for some time after going back from the background (iOS)
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- Dominant language
- TypeScript
- Stars
- 25.7k
- Forks
- 1.7k
- Avg merge
- 1d 5h
- Merged PRs (30d)
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Description
Environment
- CLI: 6.2.0
- IOS 13.3
Describe the bug
List picker shows "?" values for some time after going back from the background (iOS)
To Reproduce
This bug is only reproduced on iOS devices
- Go to background from the app
- Go to "most recently used apps"
- Preview test app and "?" values are displayed instead of normal values.
- Go to background from the app
- Go back to the app
- "?" values are displayed for a short time until normal values are loaded
Expected behavior
Provided values for picker are shown all the time
Sample project
Repo where this bug is reproduced
ListPickerTest.zip
Additional context
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the attached ListPickerTest.zip and reproduce the issue on an iOS device using the described background and recently-used-app flows. Trace the ListPicker behavior while the app returns to the foreground, and consider the issue done when provided picker values remain visible throughout the transition without temporary "?" values.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ios, typescript
- Domain
- mobile-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100