WidgetsBindingObserver.didChangeViewFocus

[PacteraSunChao]

Affected version

0.16.1

Flutter versions

3.24.0

No same issues found.

• Yes, I search all issues but not found.

Steps to Reproduce

Following the README example and launching Flutter on macOS will result in some errors:

../../../../.pub-cache/hosted/pub.flutter-io.cn/webf-0.16.1/lib/src/launcher/controller.dart:161:7: Error: The non-abstract class 'WebFViewController' is missing implementations for these members:
these members:

• WidgetsBindingObserver.didChangeViewFocus
  Try to either
• provide an implementation,
• inherit an implementation from a superclass or mixin,
• mark the class as abstract, or
• provide a 'noSuchMethod' implementation.

class WebFViewController implements WidgetsBindingObserver {
^^^^^^^^^^^^^^^^^^
../../../../flutter/packages/flutter/lib/src/widgets/binding.dart:335:8: Context: 'WidgetsBindingObserver.didChangeViewFocus' is defined here.
void didChangeViewFocus(ViewFocusEvent event) { }
^^^^^^^^^^^^^^^^^^
Target kernel_snapshot_program failed: Exception

Command PhaseScriptExecution failed with a nonzero exit code
warning: Run script build phase 'Run Script' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Flutter Assemble' from project 'Runner')
** BUILD FAILED **

Error: Build process failed

Code example

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({
    super.key,
  });

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Flutter Demo',
      home: Webview(url: "https://www.wechat.com/en"),
    );
  }
}

Expected results

Flutter normally launches without issues.

Actual results

Failed.