Is there an existing issue for this?

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• I have read the guide to filing a bug

Steps to reproduce

On iPhone 14 Pro, OS 16.5.1, didChangeAppLifecycleState is called with AppLifecycleState.resumed while screen is locked by clicking the side button.
This function seems to work as expected when moving App to the background, or pulling down the top menu.

Can be reproduced with a simple flutter project which is provided as Code sample below

This does NOT happen on iPhone 13 Pro Max, OS 16.5.1.

Expected results

AppLifecycleState.resumed should only show up once, after the screen is unlocked.

Actual results

These are printed after screen is locked. AppLifecycleState.resumed should not be printed but it was.

flutter: AppLifecycleState: AppLifecycleState.inactive
flutter: AppLifecycleState: AppLifecycleState.resumed
flutter: AppLifecycleState: AppLifecycleState.inactive
flutter: AppLifecycleState: AppLifecycleState.paused

After screen is unlocked, AppLifecycleState.resumed is printed again.

flutter: AppLifecycleState: AppLifecycleState.inactive
flutter: AppLifecycleState: AppLifecycleState.resumed

Code sample

import 'package:flutter/material.dart';

void main() {
  runApp(const MainApp());
}

class MainApp extends StatefulWidget {
  const MainApp({super.key});

  @override
  State<MainApp> createState() => _MainAppState();
}

class _MainAppState extends State<MainApp> with WidgetsBindingObserver {
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: Center(
          child: Text('Hello World!'),
        ),
      ),
    );
  }

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    debugPrint('AppLifecycleState: $state');
  }
}

Screenshots or Video

Logs

[Paste your logs here]

Flutter Doctor output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.10.3, on macOS 13.2 22D49 darwin-arm64, locale
    en-SG)
[✓] Android toolchain - develop for Android devices (Android SDK version
    33.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.3)
[✓] IntelliJ IDEA Ultimate Edition (version 2022.2.2)
[✓] VS Code (version 1.79.2)
[✓] Connected device (3 available)
[✓] Network resources

• No issues found!