74ff8767a7
This PR adds a combined example for the CupertinoExpansionTile widget, demonstrating its usage with both available transition modes: fade and scroll. **A demo app showing two CupertinoExpansionTile widgets:** - One using the default fade transition mode - One using the scroll transition mode A corresponding widget test verifying expand/collapse behavior for both tiles ### Issue Closes: #167317 ## Tests - Added widget tests to validate the expand and collapse behavior for both transition modes ## Pre-launch Checklist - [x] I read the [Contributor Guide](https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview) and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene](https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md) wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide](https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md), including [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). - [x] I signed the [CLA](https://cla.developers.google.com/). - [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](https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests). - [x] I followed the [breaking change policy](https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes) and added [Data Driven Fixes](https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md) 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](https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md).
Flutter Examples
This directory contains several examples of using Flutter. To run an example,
use flutter run inside that example's directory. See the getting started
guide to install the flutter tool.
For additional samples, see the
flutter/samples repo.
Available examples include:
-
Hello, world The hello world app is a minimal Flutter app that shows the text "Hello, world!"
-
Flutter gallery The flutter gallery app no longer lives in this repo. Please see the gallery repo.
-
Layers The layers vignettes show how to use the various layers in the Flutter framework. For details, see the layers README.
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Platform Channel The platform channel app demonstrates how to connect a Flutter app to platform-specific APIs. For documentation, see https://flutter.dev/to/platform-channels/.
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Platform Channel Swift The platform channel swift app is the same as platform channel but the iOS version is in Swift and there is no Android version.
Notes
Note on Gradle wrapper files in .gitignore:
Gradle wrapper files should normally be checked into source control. The example projects don't do that to avoid having several copies of the wrapper binary in the Flutter repo. Instead, the Gradle wrapper is injected by Flutter tooling, and the wrapper files are .gitignore'd to avoid making the Flutter repository dirty as a side effect of running the examples.