Flutter : AppLifecycleState not work if devices in locked screen

[zgramming]

I use AppLifeycleState to detect Behaviour my app when the user using it. For detect my app not being used, i used

• AppLifecycleState.paused
• AppLifecycleState.inActive
• AppLifecycleState.detached

Because i want detect if my App not being used for 1 second, i throw user to Confirmation Fingerprint (Like Whatsapp). Everything is fine i can detect if my app not being used if user press recent app, Home button and throw user to Confirmation Fingerprint if user comeback again.

But the problem is , When devices screen in locked up then it opened again , user not throwing to Confirmation Fingerprint.

I surely can see in console my app is AppLifecycleState.paused and AppLifecycleState.inActive, but strangely if i hot reload ctrl +s in my IDE my app throwing me to Confirmation Fingerprint.

Why can be like this ?

Working 1

Working 2

Not Working !

Already tested too in real Device (Redmi Note 4) , and still not working.

Source Code AppLifecycleState

@override
  void didChangeAppLifecycleState(AppLifecycleState state) async {
    setState(() => _appLifecycleState = state);
    if (widget.userBox == null) {
      print('Box User Null');
      return;
    } else {
      if (widget.userModelHive.fingerPrint || widget.userModelHive.pinCode) {
        if (_appLifecycleState != AppLifecycleState.resumed) {
          //? Berarti Lifecylenya InActive , Paused , Detached , Maka Simpan Waktu Keluarnya
          final actionBox = await repository.changeDateExit(
            userModelHive: UserModelHive()
              ..id = widget.userModelHive.id
              ..giverName = widget.userModelHive.giverName
              ..pinCode = widget.userModelHive.pinCode
              ..fingerPrint = widget.userModelHive.fingerPrint
              ..darkMode = widget.userModelHive.darkMode
              ..tokenExpiry = true
              ..durationToken = widget.userModelHive.durationToken
              ..dateExit = DateTime.now()
                  .add(Duration(seconds: widget.userModelHive.durationToken)),
          );
          print(state);
          return actionBox;
        } else {
          print('Resumed Lifecycle');
        }
      }
    }
    if (mounted) {
      setState(() {});
    }
    super.didChangeAppLifecycleState(state);
  }

[janmoppel]

Hello @zgramming !

Thank you for posting an issue.
Can you please also attach the flutter doctor -v command output?

[zgramming]

Flutter doctor -v

PS C:\Project Flutter\playstore_app\debt_diary> flutter doctor -v
[√] Flutter (Channel stable, v1.12.13+hotfix.5, on Microsoft Windows [Version 10.0.18362.535], locale en-US)
    • Flutter version 1.12.13+hotfix.5 at C:\flutter\flutter
    • Framework revision 27321ebbad (2 weeks ago), 2019-12-10 18:15:01 -0800
    • Engine revision 2994f7e1e6
    • Dart version 2.7.0

 
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.0)
    • Android SDK at C:\Users\user\AppData\Local\Android\Sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.0
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
    • All Android licenses accepted.

[√] Android Studio (version 3.5)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 39.0.3
    • Dart plugin version 191.8423
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[√] VS Code (version 1.41.1)
    • VS Code at C:\Users\user\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.7.1

[√] Connected device (1 available)
    • Redmi Note 4 • 1a96d23a9904 • android-arm64 • Android 7.0 (API 24)

• No issues found!
PS C:\Project Flutter\playstore_app\debt_diary> 

[markusaksli-nc]

Closing this as not reproducible on the latest master 1.23.0-8.0.pre.254.

flutter doctor -v

[✓] Flutter (Channel master, 1.23.0-8.0.pre.254, on Mac OS X 10.15.7 19H2 x86_64, locale en-GB)
    • Flutter version 1.23.0-8.0.pre.254 at /Users/markus/development/flutter_master
    • Framework revision 0d8696f655 (2 hours ago), 2020-10-09 01:12:02 -0400
    • Engine revision 349889833c
    • Dart version 2.11.0 (build 2.11.0-203.0.dev)

 
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.1)
    • Android SDK at /Users/markus/Library/Android/sdk
    • Platform android-30, build-tools 30.0.1
    • Java binary at: /Users/markus/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/193.6821437/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 12.0.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.0.1, Build version 12A7300
    • CocoaPods version 1.9.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.0)
    • Android Studio at /Users/markus/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/193.6821437/Android Studio.app/Contents
    • Flutter plugin version 50.0.1
    • Dart plugin version 193.7547
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

 
[✓] Connected device (4 available)            
    • Nevercode’s iPhone (mobile) • b668e524315069f3db3661ac11ff1f66afafebdb • ios            • iOS 13.7
    • macOS (desktop)             • macos                                    • darwin-x64     • Mac OS X 10.15.7 19H2 x86_64
    • Web Server (web)            • web-server                               • web-javascript • Flutter Tools
    • Chrome (web)                • chrome                                   • web-javascript • Google Chrome 85.0.4183.121

• No issues found!

Code sample

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  AppLifecycleState previous;
  Color color = Colors.red;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Sample',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Sample'),
        ),
        body: Center(
          child: GestureDetector(
              onTap: () => setState(() => color = Colors.white),
              child: Container(
                color: color,
              )),
        ),
      ),
    );
  }


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


  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    print(state);
    if ((previous == AppLifecycleState.paused ||
            previous == AppLifecycleState.inactive ||
            previous == AppLifecycleState.detached) &&
        state == AppLifecycleState.resumed) setState(() => color = Colors.red);
    previous = state;
  }
}

@zgramming If you are still experiencing this on the latest stable or any other channel, please provide a minimal complete reproducible code sample and your flutter doctor -v, and I'll reopen.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.