Add TabBar API example for scroll notification integration #180728
Merged
+261
−0
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Signed-off-by: huycozy <huy@nevercode.io>
Contributor
navaronbracke
left a comment
There was a problem hiding this comment.
Just some general feedback, but looks good otherwise.
dkwingsmt
reviewed
Jan 12, 2026
Contributor
dkwingsmt
left a comment
There was a problem hiding this comment.
LGTM except for @/navaronbracke 's comments. :)
Signed-off-by: huycozy <huy@nevercode.io>
Member
Author
|
Thank you for reviewing this! Let me know if the changes are good enough to go. |
Contributor
navaronbracke
left a comment
There was a problem hiding this comment.
LGTM, with one minor suggestion.
Signed-off-by: huycozy <huy@nevercode.io>
9 tasks
Member
Author
|
@dkwingsmt could you please approve this so that it will trigger Google testing? Thank you! |
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 14, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 14, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 14, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 14, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 14, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 15, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 15, 2026
engine-flutter-autoroll
added a commit
to engine-flutter-autoroll/packages
that referenced
this pull request
Jan 15, 2026
auto-submit bot
pushed a commit
to flutter/packages
that referenced
this pull request
Jan 15, 2026
Manual roll requested by tarrinneal@google.com flutter/flutter@793b0b8...b45a73b 2026-01-13 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#180900) 2026-01-13 engine-flutter-autoroll@skia.org Roll Dart SDK from 34318de9874b to ebaf52c13799 (1 revision) (flutter/flutter#180870) 2026-01-13 ahmedsameha1@gmail.com Make sure that an ErrorWidget doesn't crash in 0x0 environment (flutter/flutter#180830) 2026-01-13 ahmedsameha1@gmail.com Make sure that a Banner doesn't crash in 0x0 environment (flutter/flutter#180254) 2026-01-13 30870216+gaaclarke@users.noreply.github.com Adds metal background to engine dart tests (flutter/flutter#180700) 2026-01-13 huy@nevercode.io Add TabBar API example for scroll notification integration (flutter/flutter#180728) 2026-01-13 engine-flutter-autoroll@skia.org Roll Skia from 714d0af2eda7 to 8f3134206e8d (1 revision) (flutter/flutter#180874) 2026-01-13 97480502+b-luk@users.noreply.github.com Add build-time checks for ImpellerC's SkSL compiler (flutter/flutter#180861) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC stuartmorgan@google.com,tarrinneal@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
ikramhasan
pushed a commit
to ikramhasan/flutter
that referenced
this pull request
Jan 15, 2026
…80728) - A part of: flutter#123965 - Description: This PR adds an example that came from flutter#123965 (comment) as a workaround. I bring it into an API example so that users can find it easier. The example showcases how to apply custom behavior based on the scroll in TabBar. It utilizes scroll notifications (ScrollMetricsNotification and ScrollNotification) within NotificationListener callback to monitor the scroll offset, allowing for interface customization based on the obtained offset. <details open> <summary>Demo</summary> https://github.com/user-attachments/assets/75999f31-e468-4bba-9c14-bf4f3c8fcd9a </details> ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md --------- Signed-off-by: huycozy <huy@nevercode.io>
github-merge-queue bot
pushed a commit
that referenced
this pull request
Jan 17, 2026
While reviewing #180728 we noticed that usage of `TestFlutterView.resetXyz()` was quite liberal and some places benefit from using `TestFlutterView.reset()`, to avoid repetition. This PR cleans that up. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [ ] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The example showcases how to apply custom behavior based on the scroll in TabBar. It utilizes scroll notifications (ScrollMetricsNotification and ScrollNotification) within NotificationListener callback to monitor the scroll offset, allowing for interface customization based on the obtained offset.
Demo
Screen.Recording.2026-01-09.at.15.50.47.mov
Pre-launch Checklist
///).If you need help, consider asking for advice on the #hackers-new channel on Discord.
Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the
gemini-code-assistbot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.