Keyboard glitch when switching between topic and content input in channel narrow

[chrisbobbe]

When tapping to switch focus between the topic and content inputs in the compose box, I'm seeing the keyboard quickly slide out then back in:

It should switch smoothly without the keyboard moving, like in earlier versions of the app:

I noticed this on my iPhone running the 30.0.266 release (#announce > mobile releases @ 💬). In TestFlight I found a button to install the previous release, 30.0.365, and the issue didn't reproduce there.

I found the Flutter-upgrade commit 5985e4c as the commit where this starts happening (pinning to the Flutter version floor in pubspec.yaml in my testing).

[chrisbobbe]

Bisecting now to find the first-bad Flutter commit.

[chrisbobbe]

OK, flutter/flutter@4ea3451 is the first bad commit.

[chrisbobbe]

I doubt we're misconfiguring anything; it seems like this symptom shouldn't be happening because the two TextFields have the same value for TextField.groupId, specifically the default value, which is EditableText.

[lakshay909]

Hi! @chrisbobbe 👋 I’d love to work on this issue — thank you for maintaining such a well-structured project. I’m a student developer experienced in Flutter and API integrations, with prior open-source contributions focused on improving UI performance and feature consistency. My plan is to start by reproducing the issue, analyzing the affected widget behavior, and then implementing a fix following Zulip’s established architecture and style conventions. I’ll ensure proper testing and submit a detailed PR within 3–5 days. Could you please assign this issue to me so I can begin working on it?

Thanks in advance!

[chrisbobbe]

Please take a look at the Zulip project's guide to getting involved with the code:

https://zulip.readthedocs.io/en/latest/contributing/contributing.html#your-first-codebase-contribution
https://zulip.readthedocs.io/en/latest/contributing/contributing.html#picking-an-issue-to-work-on

[lakshay909]

Thanks for the clarification, @chrisbobbe 🙏

I’ve carefully gone through the Zulip contributing guides you shared, including the sections on setting up the development environment, submitting a first PR, and choosing appropriate issues. I understand that new contributors are encouraged to start with smaller or “good first” issues to get familiar with the workflow and review process.

I’ll begin by exploring some of those starter issues to get hands-on experience with the codebase. Once I’m more familiar with the workflow, I’d love to come back to this issue and contribute to it if it’s still open.

Appreciate your guidance and the welcoming community! 🚀