PlatformViewLink class

Links a platform view with the Flutter framework.

Provides common functionality for embedding a platform view (e.g an android.view.View on Android) with the Flutter framework.

The platform view's lifetime is the same as the lifetime of the State object for this widget. When the State is disposed the platform view (and auxiliary resources) are lazily released (some resources are immediately released and some by platform garbage collector). A stateful widget's state is disposed when the widget is removed from the tree or when it is moved within the tree. If the stateful widget has a key and it's only moved relative to its siblings, or it has a GlobalKey and it's moved within the tree, it will not be disposed.

To implement a new platform view widget, return this widget in the build method. For example:

class FooPlatformView extends StatelessWidget {
  const FooPlatformView({super.key});
  @override
  Widget build(BuildContext context) {
    return PlatformViewLink(
      viewType: 'webview',
      onCreatePlatformView: createFooWebView,
      surfaceFactory: (BuildContext context, PlatformViewController controller) {
        return PlatformViewSurface(
          gestureRecognizers: gestureRecognizers,
          controller: controller,
          hitTestBehavior: PlatformViewHitTestBehavior.opaque,
        );
      },
   );
  }
}

The surfaceFactory and the onCreatePlatformView are only called when the state of this widget is initialized, or when the viewType changes.