GN templates for defining Flutter components
Add this line to your
See the tests under
tests/ for usage examples. See individual
.gni files for more details.
Flutter components can be compiled in various different compilation modes. The component can either be compiled in JIT mode or AOT mode and each of these can optionally be compiled in ‘product’ mode which runs in a stripped down VM. By default, the flutter_component will pick the compilation mode based on the following:
The compilation mode can be set explicity as a gn arg by setting the
Product mode can be set by setting the
flutter_force_product variable to true.
Flutter applications can define assets in their pubspec.yaml file [https://flutter.dev/docs/development/ui/assets-and-images]. The flutter_component target will look at the pubspec file during compilation and generate an AssetManifest.json file and ensure that all assets get included in the resulting package.
Flutter components and Dart components share much of the same functionality and only differ in their runners and some dependencies. The flutter_component will delegate much of the work to the flutter_dart_component target which resides at //build/flutter/internal/flutter_dart_component.gni. Much of the work that the flutter_component does is just setting up the flutter driver dependencies and other runner dependencies before forwarding to the flutter_dart_component target.