Each Flutter extension uses the gnome-3-28 extension to provide many of the components needed to build Flutter desktop applications.
Use of the flutter plugin is optional. The plugin drives the build process while the extension handles its dependencies.
Snapcraft extensions enable snap developers to easily incorporate a set of common requirements into a snap. See Snapcraft extensions for further details.
Each Flutter extension works with the
core18 base snap (see Base snaps for details). To use either extension, add
extensions: [flutter-master] or
extensions: [flutter-dev] to the application definition in your snapcraft.yaml file. For instance:
apps: tali: extensions: [flutter-master] command: usr/bin/tali [...]
See Flutter applications for a comprehensive overview of using extensions with Flutter applications.
The following plugs are provided by either extension and implicitly included in your snapcraft.yaml:
plugs: gtk-3-themes: interface: content target: $SNAP/data-dir/themes default-provider: gtk-common-themes icon-themes: interface: content target: $SNAP/data-dir/icons default-provider: gtk-common-themes sound-themes: interface: content target: $SNAP/data-dir/sounds default-provider: gtk-common-themes platform_snap: interface: content target: $SNAP/gnome-platform
Your app may still need additional plugs, but you can expect the following plugs to be automatically available to your apps as well:
plugs: [ desktop, desktop-legacy, gsettings, opengl, wayland, x11 ]
See Adding interfaces for more details.
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