1f5fcb7432
This optimizes the AnimatedSwitcher so that it tags the right widget with its keyed subtree, and avoids rebuilding the transition unnecessarily. This significantly improves the performance of Chips (which uses AnimatedSwitcher to swap out it's avatar and delete icon children).
Flutter Examples
This directory contains several examples of using Flutter. Each of these is an individual Dart application package.
To run an example, use flutter run inside that example's directory. See the
getting started guide to install
the flutter tool.
Tip: To see examples of how to use a specific Flutter framework class,
copy and paste a URL with this format in your browser. Replace foo with the
classname you are searching for (for example, here's the
query
for examples of the
AppBar class).
https://github.com/flutter/flutter/search?q=path%3Aexamples+new+foo
Available examples include:
-
Hello, world The hello world app is a basic app that shows the text "hello, world."
-
Flutter gallery The flutter gallery app showcases Flutter's widgets, including its implementation of material design.
-
Platform Channel The platform channel app demonstrates how to connect a Flutter app to platform-specific APIs. For documentation, see https://flutter.io/platform-channels/.
-
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.
-
Flutter View The flutter view app demonstrates how to embed Flutter within an iOS or Android app.
-
Layers The layers vignettes show how to use the various layers in the Flutter framework. For details, see the layers README.
-
Stocks The stocks demo shows how one might structure an application with several screens.
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.