Flutter MissingPluginException when I use FlutterFragmentActivity

Question

After upgrading to 1.17.3 and (1.17.3) I can't use local_auth biometric plugin anymore. Plugin requires FlutterFragmentActivity, but once I change public class MainActivity extends FlutterActivity to public class MainActivity extends FlutterFragmentActivity app would compile and run but I'd start getting MissingPluginException error for every other plugin.

Answer 1

Found the solution, it seems it has not been added to the local_auth documentation. Make sure to add the configureFlutterEngine override method as below after changing from FlutterActivity to FlutterFragmentActivity in the MainActivity Class

import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.plugins.GeneratedPluginRegistrant;
import io.flutter.embedding.android.FlutterFragmentActivity;

public class MainActivity extends FlutterFragmentActivity {
    @Override
    public void configureFlutterEngine(FlutterEngine flutterEngine) {
        GeneratedPluginRegistrant.registerWith(flutterEngine);
    }
}