FlutterFragmentActivity destroys engine provided by provideFlutterEngine #81830

Activity

1. lukaslihotzki commented on May 4, 2021

   

   lukaslihotzki

   on May 4, 2021

   Author

   More actions

   Also, adding override fun shouldDestroyEngineWithHost(): Boolean = false in MainActivity (android/app/src/main/kotlin/com/example/bug/MainActivity.kt) does not solve this issue.
2. TahaTesser

   added

   in triagePresently being triaged by the triage teamPresently being triaged by the triage team

   on May 5, 2021
3. TahaTesser commented on May 5, 2021

   

   TahaTesser

   on May 5, 2021

   Last edited by TahaTesser

   Contributor

   More actions

   Hi @lukaslihotzki
   I just tried the reproduce the issue following steps, made the changes, when closing the app and launching it again, it didn't crash on emulator or device, also tried release mode.

   code sample

   package com.example.stable_flutter
   
   import android.content.Context
   import io.flutter.embedding.android.FlutterActivity
   import io.flutter.embedding.android.FlutterFragmentActivity
   import io.flutter.embedding.engine.FlutterEngine
   
   class MainActivity: FlutterFragmentActivity() {
       companion object {
           var engine: FlutterEngine? = null
           fun provideEngine(context: Context): FlutterEngine {
               val eng = engine ?: FlutterEngine(context, emptyArray(), true, false)
               engine = eng
               return eng
           }
       }
   
       override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
   
       }
   
       override fun provideFlutterEngine(context: Context): FlutterEngine? {
           return provideEngine(this)
       }
   }
   

   flutter doctor -v

   [✓] Flutter (Channel stable, 2.0.6, on Microsoft Windows [Version 10.0.19042.928], locale en-US)
       • Flutter version 2.0.6 at C:\Users\Taha\Code\flutter_stable
       • Framework revision 1d9032c7e1 (5 days ago), 2021-04-29 17:37:58 -0700
       • Engine revision 05e680e202
       • Dart version 2.12.3
   
   [!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
       • Android SDK at C:\Users\Taha\Code\SDK
       • Platform android-30, build-tools 30.0.3
       • ANDROID_HOME = C:\Users\Taha\Code\SDK
       • Java binary at: C:\Users\Taha\Code\android-studio\jre\bin\java
       • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
       ✗ Android license status unknown.
         Run `flutter doctor --android-licenses` to accept the SDK licenses.
         See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
   
   [✓] Chrome - develop for the web
       • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
   
   [✓] Visual Studio - develop for Windows (Visual Studio Community 2019 16.9.4)
       • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
       • Visual Studio Community 2019 version 16.9.31205.134
       • Windows 10 SDK version 10.0.19041.0
   
   [✓] Android Studio (version 4.1.0)
       • Android Studio at C:\Users\Taha\Code\android-studio
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
       • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
   
   [✓] IntelliJ IDEA Community Edition (version 2021.1)
       • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.3.3
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
   
   [✓] VS Code (version 1.55.2)
       • VS Code at C:\Users\Taha\AppData\Local\Programs\Microsoft VS Code
       • Flutter extension version 3.22.0
   
   [✓] Connected device (5 available)
       • Redmi K20 Pro (mobile)                • def0ad20      • android-arm64  • Android 10 (API 29)
       • Android SDK built for x86 64 (mobile) • emulator-5554 • android-x64    • Android 10 (API 29) (emulator)
       • Windows (desktop)                     • windows       • windows-x64    • Microsoft Windows [Version
         10.0.19042.928]
       • Chrome (web)                          • chrome        • web-javascript • Google Chrome 90.0.4430.93
       • Edge (web)                            • edge          • web-javascript • Microsoft Edge 90.0.818.51
   
   ! Doctor found issues in 1 category.

   [✓] Flutter (Channel master, 2.3.0-1.0.pre.227, on Microsoft Windows [Version 10.0.19042.928], locale en-US)
       • Flutter version 2.3.0-1.0.pre.227 at C:\Users\Taha\Code\flutter_master
       • Upstream repository https://github.com/flutter/flutter.git
       • Framework revision 7f1d1414cc (21 hours ago), 2021-05-04 06:17:19 -0700
       • Engine revision 378e4dbc41
       • Dart version 2.14.0 (build 2.14.0-48.0.dev)
   
   [!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
       • Android SDK at C:\Users\Taha\Code\SDK
       • Platform android-30, build-tools 30.0.3
       • ANDROID_HOME = C:\Users\Taha\Code\SDK
       • Java binary at: C:\Users\Taha\Code\android-studio\jre\bin\java
       • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
       ✗ Android license status unknown.
         Run `flutter doctor --android-licenses` to accept the SDK licenses.
         See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
   
   [✓] Chrome - develop for the web
       • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
   
   [✓] Visual Studio - develop for Windows (Visual Studio Community 2019 16.9.4)
       • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
       • Visual Studio Community 2019 version 16.9.31205.134
       • Windows 10 SDK version 10.0.19041.0
   
   [✓] Android Studio (version 4.1.0)
       • Android Studio at C:\Users\Taha\Code\android-studio
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
       • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
   
   [✓] IntelliJ IDEA Community Edition (version 2021.1)
       • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.3.3
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
   
   [✓] VS Code (version 1.55.2)
       • VS Code at C:\Users\Taha\AppData\Local\Programs\Microsoft VS Code
       • Flutter extension version 3.22.0
   
   [✓] Connected device (5 available)
       • Redmi K20 Pro (mobile)                • def0ad20      • android-arm64  • Android 10 (API 29)
       • Android SDK built for x86 64 (mobile) • emulator-5554 • android-x64    • Android 10 (API 29) (emulator)
       • Windows (desktop)                     • windows       • windows-x64    • Microsoft Windows [Version
         10.0.19042.928]
       • Chrome (web)                          • chrome        • web-javascript • Google Chrome 90.0.4430.93
       • Edge (web)                            • edge          • web-javascript • Microsoft Edge 90.0.818.51
   
   ! Doctor found issues in 1 category.
4. TahaTesser

   added

   waiting for responseThe Flutter team cannot make further progress on this issue until the original reporter respondsThe Flutter team cannot make further progress on this issue until the original reporter responds

   on May 5, 2021
5. lukaslihotzki commented on May 5, 2021

   

   lukaslihotzki

   on May 5, 2021

   Author

   More actions

   Hi @TahaTesser
   The app needs to be closed with the back button to reproduce this issue. Not just with the home button, and not swiping it up in multitasking view. I should have said this in the issue. I can reproduce this issue in flutter stable and beta.
6. no-response

   removed

   waiting for responseThe Flutter team cannot make further progress on this issue until the original reporter respondsThe Flutter team cannot make further progress on this issue until the original reporter responds

   on May 5, 2021
7. Bubu commented on May 5, 2021

   

   Bubu

   on May 5, 2021

   More actions

   I can reproduce this with the provided steps.
8. TahaTesser commented on May 6, 2021

   

   TahaTesser

   on May 6, 2021

   Last edited by TahaTesser

   Contributor

   More actions

   Hi @lukaslihotzki
   I was closing it from the recent menu, pressing the back button does reproduce the issue, thanks

   code sample

   package com.example.stable_flutter
   
   import android.content.Context
   import io.flutter.embedding.android.FlutterActivity
   import io.flutter.embedding.android.FlutterFragmentActivity
   import io.flutter.embedding.engine.FlutterEngine
   
   class MainActivity: FlutterFragmentActivity() {
       companion object {
           var engine: FlutterEngine? = null
           fun provideEngine(context: Context): FlutterEngine {
               val eng = engine ?: FlutterEngine(context, emptyArray(), true, false)
               engine = eng
               return eng
           }
       }
   
       override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
   
       }
   
       override fun provideFlutterEngine(context: Context): FlutterEngine? {
           return provideEngine(this)
       }
   }
   

   logs

   PS C:\Users\Taha\AndroidStudioProjects\stable_flutter> fsr --release
   [  +68 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git -c log.showSignature=false log -n 1 --pretty=format:%H
   [  +53 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
   [        ] 1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [        ] executing: [C:\Users\Taha\Code\flutter_stable/] git tag --points-at 1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [  +41 ms] Exit code 0 from: git tag --points-at 1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [        ] 2.0.6
   [  +32 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git rev-parse --abbrev-ref --symbolic @{u}
   [  +29 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
   [        ] origin/stable
   [        ] executing: [C:\Users\Taha\Code\flutter_stable/] git ls-remote --get-url origin
   [  +24 ms] Exit code 0 from: git ls-remote --get-url origin
   [        ] https://github.com/flutter/flutter.git
   [  +54 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git rev-parse --abbrev-ref HEAD
   [  +26 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
   [        ] stable
   [  +68 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [   +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [  +45 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe devices -l
   [  +35 ms] List of devices attached
              def0ad20               device product:raphaelin model:Redmi_K20_Pro device:raphaelin transport_id:2
   [   +4 ms] C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell getprop
   [  +56 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [   +4 ms] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [  +65 ms] Skipping pub get: version match.
   [  +94 ms] Generating
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistran
   t.java
   [  +53 ms] ro.hardware = qcom
   [  +33 ms] executing: C:\Users\Taha\Code\SDK\build-tools\30.0.3\aapt dump xmltree
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [  +10 ms] Exit code 0 from: C:\Users\Taha\Code\SDK\build-tools\30.0.3\aapt dump xmltree
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [        ] N: android=http://schemas.android.com/apk/res/android
                E: manifest (line=2)
                  A: android:versionCode(0x0101021b)=(type 0x10)0x1
                  A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
                  A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1e
                  A: android:compileSdkVersionCodename(0x01010573)="11" (Raw: "11")
                  A: package="com.example.stable_flutter" (Raw: "com.example.stable_flutter")
                  A: platformBuildVersionCode=(type 0x10)0x1e
                  A: platformBuildVersionName=(type 0x10)0xb
                  E: uses-sdk (line=7)
                    A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                    A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1e
                  E: uses-permission (line=14)
                    A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
                  E: application (line=16)
                    A: android:label(0x01010001)="stable_flutter" (Raw: "stable_flutter")
                    A: android:icon(0x01010002)=@0x7f080000
                    A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                    A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw:
                    "androidx.core.app.CoreComponentFactory")
                    E: activity (line=21)
                      A: android:theme(0x01010000)=@0x7f0a0000
                      A: android:name(0x01010003)="com.example.stable_flutter.MainActivity" (Raw:
                      "com.example.stable_flutter.MainActivity")
                      A: android:launchMode(0x0101001d)=(type 0x10)0x1
                      A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                      A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                      A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                      E: meta-data (line=35)
                        A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw:
                        "io.flutter.embedding.android.NormalTheme")
                        A: android:resource(0x01010025)=@0x7f0a0001
                      E: meta-data (line=45)
                        A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw:
                        "io.flutter.embedding.android.SplashScreenDrawable")
                        A: android:resource(0x01010025)=@0x7f040000
                      E: intent-filter (line=49)
                        E: action (line=50)
                          A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                        E: category (line=52)
                          A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw:
                          "android.intent.category.LAUNCHER")
                    E: meta-data (line=59)
                      A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                      A: android:value(0x01010024)=(type 0x10)0x2
   [   +6 ms] Launching lib\main.dart on Redmi K20 Pro in release mode...
   [   +3 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell -x logcat -v time -t 1
   [ +162 ms] --------- beginning of main
                       05-06 10:19:25.386 W/getprop (10384): type=1400 audit(0.0:97590): avc: denied { map } for
                       path="/dev/__properties__/u:object_r:vendor_fp_prop:s0" dev="tmpfs" ino=28898 scontext=u:r:shell:s0
                       tcontext=u:object_r:vendor_fp_prop:s0 tclass=file permissive=0
   [  +10 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe version
   [  +18 ms] Android Debug Bridge version 1.0.41
              Version 31.0.2-7242960
              Installed as C:\Users\Taha\Code\SDK\platform-tools\adb.exe
   [   +2 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe start-server
   [  +18 ms] Building APK
   [  +16 ms] Running Gradle task 'assembleRelease'...
   [   +4 ms] Using gradle from C:\Users\Taha\AndroidStudioProjects\stable_flutter\android\gradlew.bat.
   [   +1 ms] C:\Users\Taha\AndroidStudioProjects\stable_flutter\android\gradlew.bat mode: 33279 rwxrwxrwx.
   [   +6 ms] executing: C:\Users\Taha\Code\android-studio\jre\bin\java -version
   [  +99 ms] Exit code 0 from: C:\Users\Taha\Code\android-studio\jre\bin\java -version
   [        ] openjdk version "11.0.8" 2020-07-14
              OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
              OpenJDK 64-Bit Server VM (build 11.0.8+10-b944.6842174, mixed mode)
   [   +2 ms] executing: [C:\Users\Taha\AndroidStudioProjects\stable_flutter\android/]
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\android\gradlew.bat -Pverbose=true -Ptarget-platform=android-arm64
   -Ptarget=C:\Users\Taha\AndroidStudioProjects\stable_flutter\lib\main.dart -Ptrack-widget-creation=true
   -Pfilesystem-scheme=org-dartlang-root assembleRelease
   [+3790 ms] > Task :app:compileFlutterBuildRelease
   [   +1 ms] [  +59 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git -c log.showSignature=false log -n 1
   --pretty=format:%H
   [   +1 ms] [  +55 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
   [        ] [        ] 1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [        ] [        ] executing: [C:\Users\Taha\Code\flutter_stable/] git tag --points-at
   1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [        ] [  +41 ms] Exit code 0 from: git tag --points-at 1d9032c7e1d867f071f2277eb1673e8f9b0274e3
   [        ] [        ] 2.0.6
   [        ] [  +30 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git rev-parse --abbrev-ref --symbolic @{u}
   [        ] [  +28 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
   [        ] [        ] origin/stable
   [        ] [        ] executing: [C:\Users\Taha\Code\flutter_stable/] git ls-remote --get-url origin
   [        ] [  +23 ms] Exit code 0 from: git ls-remote --get-url origin
   [        ] [        ] https://github.com/flutter/flutter.git
   [        ] [  +53 ms] executing: [C:\Users\Taha\Code\flutter_stable/] git rev-parse --abbrev-ref HEAD
   [        ] [  +24 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
   [        ] [        ] stable
   [        ] [  +39 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [        ] [   +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [        ] [  +48 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
   [        ] [        ] Artifact Instance of 'PubDependencies' is not required, skipping update.
   [        ] [  +57 ms] Initializing file store
   [        ] [  +14 ms] Skipping target: gen_localizations
   [        ] [   +5 ms] kernel_snapshot: Starting due to {}
   [        ] [   +8 ms] C:\Users\Taha\Code\flutter_stable\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev
   C:\Users\Taha\Code\flutter_stable\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root
   C:\Users\Taha\Code\flutter_stable\bin\cache\artifacts\engine\common\flutter_patched_sdk_product/ --target=flutter
   --no-print-incremental-dependencies -Ddart.vm.profile=false -Ddart.vm.product=true --aot --tfa --packages
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\.dart_tool\package_config.json --output-dill
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\.dart_tool\flutter_build\4f1784b9d7002e8fd8e1a4b4fb13bfe1\app.dill
   --depfile
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\.dart_tool\flutter_build\4f1784b9d7002e8fd8e1a4b4fb13bfe1\kernel_snap
   shot.d package:stable_flutter/main.dart
   [+7665 ms] [+8626 ms] kernel_snapshot: Complete
   [ +303 ms] [ +343 ms] android_aot_release_android-arm64: Starting due to {InvalidatedReason.inputChanged}
   [   +1 ms] [   +5 ms] executing:
   C:\Users\Taha\Code\flutter_stable\bin\cache\artifacts\engine\android-arm64-release\windows-x64\gen_snapshot
   --deterministic --snapshot_kind=app-aot-elf
   --elf=C:\Users\Taha\AndroidStudioProjects\stable_flutter\.dart_tool\flutter_build\4f1784b9d7002e8fd8e1a4b4fb13bfe1\arm64
   -v8a\app.so --strip
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\.dart_tool\flutter_build\4f1784b9d7002e8fd8e1a4b4fb13bfe1\app.dill
   [   +1 ms] [   +1 ms] aot_android_asset_bundle: Starting due to {}
   [ +183 ms] [ +154 ms] aot_android_asset_bundle: Complete
   [+4498 ms] [+4491 ms] android_aot_release_android-arm64: Complete
   [   +1 ms] [  +20 ms] android_aot_bundle_release_android-arm64: Starting due to {InvalidatedReason.inputChanged}
   [   +1 ms] [   +5 ms] android_aot_bundle_release_android-arm64: Complete
   [ +107 ms] [  +24 ms] Persisting file store
   [   +1 ms] [  +11 ms] Done persisting file store
   [        ] [   +5 ms] build succeeded.
   [        ] [  +12 ms] "flutter assemble" took 13,853ms.
   [        ] [   +3 ms] ensureAnalyticsSent: 0ms
   [        ] [        ] Running shutdown hooks
   [        ] [        ] Shutdown hooks complete
   [        ] [        ] exiting with code 0
   [ +187 ms] > Task :app:packLibsflutterBuildRelease
   [   +1 ms] > Task :app:preBuild UP-TO-DATE
   [ +108 ms] > Task :app:extractProguardFiles
   [        ] > Task :app:preReleaseBuild
   [   +1 ms] > Task :app:compileReleaseAidl NO-SOURCE
   [   +1 ms] > Task :app:compileReleaseRenderscript NO-SOURCE
   [        ] > Task :app:generateReleaseBuildConfig
   [        ] > Task :app:checkReleaseAarMetadata
   [        ] > Task :app:cleanMergeReleaseAssets UP-TO-DATE
   [        ] > Task :app:mergeReleaseShaders
   [        ] > Task :app:compileReleaseShaders NO-SOURCE
   [        ] > Task :app:generateReleaseAssets UP-TO-DATE
   [        ] > Task :app:mergeReleaseAssets
   [        ] > Task :app:copyFlutterAssetsRelease
   [        ] > Task :app:generateReleaseResValues
   [        ] > Task :app:generateReleaseResources
   [ +505 ms] > Task :app:createReleaseCompatibleScreenManifests
   [   +1 ms] > Task :app:extractDeepLinksRelease
   [  +75 ms] > Task :app:processReleaseMainManifest
   [        ] > Task :app:processReleaseManifest
   [  +95 ms] > Task :app:mergeReleaseNativeDebugMetadata NO-SOURCE
   [   +1 ms] > Task :app:javaPreCompileRelease
   [ +109 ms] > Task :app:compressReleaseAssets
   [ +396 ms] > Task :app:processReleaseJavaRes NO-SOURCE
   [   +1 ms] > Task :app:checkReleaseDuplicateClasses
   [  +94 ms] > Task :app:collectReleaseDependencies
   [ +107 ms] > Task :app:sdkReleaseDependencyData
   [        ] > Task :app:mergeReleaseJniLibFolders
   [        ] > Task :app:validateSigningRelease
   [        ] > Task :app:processReleaseManifestForPackage
   [ +597 ms] > Task :app:mergeReleaseResources
   [ +505 ms] > Task :app:mergeReleaseNativeLibs
   [ +285 ms] > Task :app:processReleaseResources
   [ +703 ms] > Task :app:compileReleaseKotlin
   [ +299 ms] > Task :app:compileReleaseJavaWithJavac
   [        ] > Task :app:compileReleaseSources
   [+12606 ms] > Task :app:lintVitalRelease
   [   +1 ms] > Task :app:mergeReleaseGeneratedProguardFiles
   [   +1 ms] > Task :app:stripReleaseDebugSymbols
   [        ] Unable to strip the following libraries, packaging them as they are: libapp.so, libflutter.so.
   [ +887 ms] > Task :app:mergeReleaseJavaResource
   [+1999 ms] > Task :app:minifyReleaseWithR8
   [        ] R8: Missing class: com.google.android.play.core.splitcompat.SplitCompatApplication
   [        ] R8: Missing class: com.google.android.play.core.splitinstall.SplitInstallStateUpdatedListener
   [+1609 ms] > Task :app:shrinkReleaseRes
   [ +686 ms] > Task :app:packageRelease
   [   +1 ms] > Task :app:assembleRelease
   [   +1 ms] Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
   [   +1 ms] Use '--warning-mode all' to show the individual deprecation warnings.
   [   +1 ms] See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings
   [        ] BUILD SUCCESSFUL in 38s
   [        ] 35 actionable tasks: 34 executed, 1 up-to-date
   [ +550 ms] Running Gradle task 'assembleRelease'... (completed in 39.1s)
   [  +16 ms] calculateSha: LocalDirectory:
   'C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk'/app.apk
   [   +3 ms] calculateSha: reading file took 2us
   [  +64 ms] calculateSha: computing sha took 63us
   [   +4 ms] ✓ Built build\app\outputs\flutter-apk\app-release.apk (5.8MB).
   [   +4 ms] executing: C:\Users\Taha\Code\SDK\build-tools\30.0.3\aapt dump xmltree
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [  +17 ms] Exit code 0 from: C:\Users\Taha\Code\SDK\build-tools\30.0.3\aapt dump xmltree
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [   +1 ms] N: android=http://schemas.android.com/apk/res/android
                E: manifest (line=2)
                  A: android:versionCode(0x0101021b)=(type 0x10)0x1
                  A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
                  A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1e
                  A: android:compileSdkVersionCodename(0x01010573)="11" (Raw: "11")
                  A: package="com.example.stable_flutter" (Raw: "com.example.stable_flutter")
                  A: platformBuildVersionCode=(type 0x10)0x1e
                  A: platformBuildVersionName=(type 0x10)0xb
                  E: uses-sdk (line=7)
                    A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                    A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1e
                  E: application (line=11)
                    A: android:label(0x01010001)="stable_flutter" (Raw: "stable_flutter")
                    A: android:icon(0x01010002)=@0x7f080000
                    A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw:
                    "androidx.core.app.CoreComponentFactory")
                    E: activity (line=15)
                      A: android:theme(0x01010000)=@0x7f0a0000
                      A: android:name(0x01010003)="com.example.stable_flutter.MainActivity" (Raw:
                      "com.example.stable_flutter.MainActivity")
                      A: android:launchMode(0x0101001d)=(type 0x10)0x1
                      A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                      A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                      A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                      E: meta-data (line=29)
                        A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw:
                        "io.flutter.embedding.android.NormalTheme")
                        A: android:resource(0x01010025)=@0x7f0a0001
                      E: meta-data (line=39)
                        A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw:
                        "io.flutter.embedding.android.SplashScreenDrawable")
                        A: android:resource(0x01010025)=@0x7f040000
                      E: intent-filter (line=43)
                        E: action (line=44)
                          A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                        E: category (line=46)
                          A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw:
                          "android.intent.category.LAUNCHER")
                    E: meta-data (line=53)
                      A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                      A: android:value(0x01010024)=(type 0x10)0x2
   [   +3 ms] Stopping app 'app.apk' on Redmi K20 Pro.
   [   +1 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell am force-stop
   com.example.stable_flutter
   [  +67 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell pm list packages
   com.example.stable_flutter
   [  +59 ms] package:com.example.stable_flutter
   [   +2 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell cat
   /data/local/tmp/sky.com.example.stable_flutter.sha1
   [  +38 ms] 1f8683b7ef0593a1f369b0289a86e02988b52dd0
   [   +1 ms] Installing APK.
   [   +1 ms] Installing build\app\outputs\flutter-apk\app.apk...
   [        ] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 install -t -r
   C:\Users\Taha\AndroidStudioProjects\stable_flutter\build\app\outputs\flutter-apk\app.apk
   [+1460 ms] Performing Streamed Install
                       Success
   [   +1 ms] Installing build\app\outputs\flutter-apk\app.apk... (completed in 1,461ms)
   [   +1 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell echo -n
   ba264541712905f02b1f5dc289134d6fec761370 > /data/local/tmp/sky.com.example.stable_flutter.sha1
   [  +51 ms] executing: C:\Users\Taha\Code\SDK\platform-tools\adb.exe -s def0ad20 shell am start -a
   android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez enable-dart-profiling true
   com.example.stable_flutter/com.example.stable_flutter.MainActivity
   [ +128 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.example.stable_flutter/.MainActivity
   (has extras) }
   [   +2 ms] Application running.
   [   +2 ms] Flutter run key commands.
   [   +1 ms] h Repeat this help message.
   [   +1 ms] c Clear the screen
   [        ] q Quit (terminate the application on the device).
   [+7056 ms] W/FlutterJNI(10482): Tried to send a platform message to Flutter, but FlutterJNI was detached from native
   C++. Could not send. Channel: flutter/textinput. Response ID: 0
   [   +1 ms] E/AndroidRuntime(10482): FATAL EXCEPTION: main
   [   +1 ms] E/AndroidRuntime(10482): Process: com.example.stable_flutter, PID: 10482
   [        ] E/AndroidRuntime(10482): java.lang.RuntimeException: Cannot execute operation because FlutterJNI is not
   attached to native.
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.engine.FlutterJNI.ensureAttachedToNative(Unknown Source:9)
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.engine.FlutterJNI.setSemanticsEnabled(Unknown Source:3)
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.engine.i.b.d(Unknown Source:3)
   [   +1 ms] E/AndroidRuntime(10482):     at io.flutter.view.c$b.onAccessibilityStateChanged(Unknown Source:46)
   [        ] E/AndroidRuntime(10482):     at io.flutter.view.c.<init>(Unknown Source:79)
   [        ] E/AndroidRuntime(10482):     at io.flutter.view.c.<init>(Unknown Source:13)
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.android.n.j(Unknown Source:178)
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.android.e.m(Unknown Source:149)
   [        ] E/AndroidRuntime(10482):     at io.flutter.embedding.android.i.z0(Unknown Source:2)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.Fragment.c1(Unknown Source:15)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.P0(Unknown Source:645)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.M0(Unknown Source:93)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.N0(Unknown Source:42)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.a.j(Unknown Source:173)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.k0(Unknown Source:38)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.l0(Unknown Source:113)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.X0(Unknown Source:88)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.j0(Unknown Source:21)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.c0(Unknown Source:9)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.i.w(Unknown Source:6)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.e.c(Unknown Source:4)
   [        ] E/AndroidRuntime(10482):     at androidx.fragment.app.c.onStart(Unknown Source:15)
   [        ] E/AndroidRuntime(10482):     at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1433)
   [        ] E/AndroidRuntime(10482):     at android.app.Activity.performStart(Activity.java:7924)
   [        ] E/AndroidRuntime(10482):     at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3332)
   [        ] E/AndroidRuntime(10482):     at
   android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
   [        ] E/AndroidRuntime(10482):     at
   android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
   [        ] E/AndroidRuntime(10482):     at
   android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
   [        ] E/AndroidRuntime(10482):     at
   android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
   [        ] E/AndroidRuntime(10482):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2044)
   [        ] E/AndroidRuntime(10482):     at android.os.Handler.dispatchMessage(Handler.java:107)
   [        ] E/AndroidRuntime(10482):     at android.os.Looper.loop(Looper.java:224)
   [        ] E/AndroidRuntime(10482):     at android.app.ActivityThread.main(ActivityThread.java:7560)
   [        ] E/AndroidRuntime(10482):     at java.lang.reflect.Method.invoke(Native Method)
   [        ] E/AndroidRuntime(10482):     at
   com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
   [        ] E/AndroidRuntime(10482):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)

   flutter doctor -v

   [✓] Flutter (Channel stable, 2.0.6, on Microsoft Windows [Version 10.0.19042.928], locale en-US)
       • Flutter version 2.0.6 at C:\Users\Taha\Code\flutter_stable
       • Framework revision 1d9032c7e1 (6 days ago), 2021-04-29 17:37:58 -0700
       • Engine revision 05e680e202
       • Dart version 2.12.3
   
   [!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
       • Android SDK at C:\Users\Taha\Code\SDK
       • Platform android-30, build-tools 30.0.3
       • ANDROID_HOME = C:\Users\Taha\Code\SDK
       • Java binary at: C:\Users\Taha\Code\android-studio\jre\bin\java
       • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
       ✗ Android license status unknown.
         Run `flutter doctor --android-licenses` to accept the SDK licenses.
         See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
   
   [✓] Chrome - develop for the web
       • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
   
   [✓] Visual Studio - develop for Windows (Visual Studio Community 2019 16.9.4)
       • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
       • Visual Studio Community 2019 version 16.9.31205.134
       • Windows 10 SDK version 10.0.19041.0
   
   [✓] Android Studio (version 4.1.0)
       • Android Studio at C:\Users\Taha\Code\android-studio
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
       • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
   
   [✓] IntelliJ IDEA Community Edition (version 2021.1)
       • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.3.3
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
   
   [✓] VS Code (version 1.56.0)
       • VS Code at C:\Users\Taha\AppData\Local\Programs\Microsoft VS Code
       • Flutter extension version 3.22.0
   
   [✓] Connected device (4 available)
       • Redmi K20 Pro (mobile) • def0ad20 • android-arm64  • Android 10 (API 29)
       • Windows (desktop)      • windows  • windows-x64    • Microsoft Windows [Version 10.0.19042.928]
       • Chrome (web)           • chrome   • web-javascript • Google Chrome 90.0.4430.93
       • Edge (web)             • edge     • web-javascript • Microsoft Edge 90.0.818.51
   
   ! Doctor found issues in 1 category.

   [✓] Flutter (Channel master, 2.3.0-1.0.pre.229, on Microsoft Windows [Version 10.0.19042.928], locale en-US)
       • Flutter version 2.3.0-1.0.pre.229 at C:\Users\Taha\Code\flutter_master
       • Upstream repository https://github.com/flutter/flutter.git
       • Framework revision 14d5eab43c (3 hours ago), 2021-05-05 21:51:53 -0700
       • Engine revision 378e4dbc41
       • Dart version 2.14.0 (build 2.14.0-48.0.dev)
   
   [!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
       • Android SDK at C:\Users\Taha\Code\SDK
       • Platform android-30, build-tools 30.0.3
       • ANDROID_HOME = C:\Users\Taha\Code\SDK
       • Java binary at: C:\Users\Taha\Code\android-studio\jre\bin\java
       • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
       ✗ Android license status unknown.
         Run `flutter doctor --android-licenses` to accept the SDK licenses.
         See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
   
   [✓] Chrome - develop for the web
       • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
   
   [✓] Visual Studio - develop for Windows (Visual Studio Community 2019 16.9.4)
       • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
       • Visual Studio Community 2019 version 16.9.31205.134
       • Windows 10 SDK version 10.0.19041.0
   
   [✓] Android Studio (version 4.1.0)
       • Android Studio at C:\Users\Taha\Code\android-studio
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
       • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
   
   [✓] IntelliJ IDEA Community Edition (version 2021.1)
       • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.3.3
       • Flutter plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/9212-flutter
       • Dart plugin can be installed from:
         🔨 https://plugins.jetbrains.com/plugin/6351-dart
   
   [✓] VS Code (version 1.56.0)
       • VS Code at C:\Users\Taha\AppData\Local\Programs\Microsoft VS Code
       • Flutter extension version 3.22.0
   
   [✓] Connected device (4 available)
       • Redmi K20 Pro (mobile) • def0ad20 • android-arm64  • Android 10 (API 29)
       • Windows (desktop)      • windows  • windows-x64    • Microsoft Windows [Version 10.0.19042.928]
       • Chrome (web)           • chrome   • web-javascript • Google Chrome 90.0.4430.93
       • Edge (web)             • edge     • web-javascript • Microsoft Edge 90.0.818.51
   
   ! Doctor found issues in 1 category.
9. TahaTesser

   added

   engineflutter/engine related. See also e: labels.flutter/engine related. See also e: labels.

   found in release: 2.0Found to occur in 2.0Found to occur in 2.0

   found in release: 2.3Found to occur in 2.3Found to occur in 2.3

   has reproducible stepsThe issue has been confirmed reproducible and is ready to work onThe issue has been confirmed reproducible and is ready to work on

   platform-androidAndroid applications specificallyAndroid applications specifically

   c: fatal crashCrashes that terminate the processCrashes that terminate the process

   and removed

   in triagePresently being triaged by the triage teamPresently being triaged by the triage team

   on May 6, 2021
10. 2 remaining items

    Load more

11. jason-simmons commented on May 19, 2021

    

    jason-simmons

    on May 19, 2021

    Contributor

    More actions

    FlutterFragment is destroying the engine because the fragment's ARG_DESTROY_ENGINE_WITH_FRAGMENT parameter is true by default
    (https://github.com/flutter/engine/blob/master/shell/platform/android/io/flutter/embedding/android/FlutterFragment.java#L121)

    To avoid destroying the engine, use a CachedEngineFragmentBuilder (https://api.flutter.dev/javadoc/io/flutter/embedding/android/FlutterFragment.CachedEngineFragmentBuilder.html)

    For a simple way to use this, see FlutterEngineCache and FlutterFragment.withCachedEngine (https://api.flutter.dev/javadoc/io/flutter/embedding/android/FlutterFragment.html)

    👍React with 👍1Reacted by LongXiangGuo
12. brucemckayone commented on Mar 11, 2022

    

    brucemckayone

    on Mar 11, 2022

    More actions

    FlutterFragment is destroying the engine because the fragment's ARG_DESTROY_ENGINE_WITH_FRAGMENT parameter is true by default (https://github.com/flutter/engine/blob/master/shell/platform/android/io/flutter/embedding/android/FlutterFragment.java#L121)

    To avoid destroying the engine, use a CachedEngineFragmentBuilder (https://api.flutter.dev/javadoc/io/flutter/embedding/android/FlutterFragment.CachedEngineFragmentBuilder.html)

    For a simple way to use this, see FlutterEngineCache and FlutterFragment.withCachedEngine (https://api.flutter.dev/javadoc/io/flutter/embedding/android/FlutterFragment.html)

    Would it be possible for you to provide a code sample, as I have no Android experience only flutter, and this stuff is out knowledge as of now.

    i am having conflicts with flutter_stripe

    👍React with 👍4Reacted by obidano, Jon Samwell, Klemen Tusar and amsmokefree
13. flutter-triage-bot

    added

    multiteam-retriage-candidate

    team-androidOwned by Android platform teamOwned by Android platform team

    triaged-androidTriaged by Android platform teamTriaged by Android platform team

    on Jul 8, 2023
14. shoaibkhalid-int commented on Jan 9, 2024

    

    shoaibkhalid-int

    on Jan 9, 2024

    More actions

    I can reproduce it with back button as mentioned above.
    any work around?
15. ShoaibKakal commented on Jan 9, 2024

    

    ShoaibKakal

    on Jan 9, 2024

    More actions

    I'm able to successfully resolve this error using getCachedEngineId()
    You need to override getCachedEngineId() and return engine id like below:

     override fun getCachedEngineId(): String? {
            return "your_engine_id_here"
        }
    

    👍React with 👍1Reacted by Dmitri Yurchenko
16. tianjyan commented on Feb 5, 2024

    

    tianjyan

    on Feb 5, 2024

    More actions

    How is this issue going? I have the same issue when I use FlutterEngineGroup and FlutterFragmentActivity.

    Here are my codes:

    override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            val path = FlutterInjector.instance().flutterLoader().findAppBundlePath()
            val dartEntrypoint = DartExecutor.DartEntrypoint(path, ENTRY_POINT)
            engine = engines.createAndRunEngine(this, dartEntrypoint)
    }
    
    ...
    
    override fun provideFlutterEngine(context: Context): FlutterEngine? {
            return engine
    }
    
    override fun onDestroy() {
            super.onDestroy()
            engine.destroy() // crashed here. error message: Cannot execute operation because FlutterJNI is not attached to native.
    }
    
17. shoaibkhalid-int commented on Feb 5, 2024

    

    shoaibkhalid-int

    on Feb 5, 2024

    More actions

    How is this issue going? I have the same issue when I use FlutterEngineGroup and FlutterFragmentActivity.

    Here are my codes:

    override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            val path = FlutterInjector.instance().flutterLoader().findAppBundlePath()
            val dartEntrypoint = DartExecutor.DartEntrypoint(path, ENTRY_POINT)
            engine = engines.createAndRunEngine(this, dartEntrypoint)
    }
    
    ...
    
    override fun provideFlutterEngine(context: Context): FlutterEngine? {
            return engine
    }
    
    override fun onDestroy() {
            super.onDestroy()
            engine.destroy() // crashed here. error message: Cannot execute operation because FlutterJNI is not attached to native.
    }

    you should override getCachedEngineId().
18. tianjyan commented on Feb 5, 2024

    

    tianjyan

    on Feb 5, 2024

    More actions

    How is this issue going? I have the same issue when I use FlutterEngineGroup and FlutterFragmentActivity.
    Here are my codes:

    override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            val path = FlutterInjector.instance().flutterLoader().findAppBundlePath()
            val dartEntrypoint = DartExecutor.DartEntrypoint(path, ENTRY_POINT)
            engine = engines.createAndRunEngine(this, dartEntrypoint)
    }
    
    ...
    
    override fun provideFlutterEngine(context: Context): FlutterEngine? {
            return engine
    }
    
    override fun onDestroy() {
            super.onDestroy()
            engine.destroy() // crashed here. error message: Cannot execute operation because FlutterJNI is not attached to native.
    }

    you should override getCachedEngineId().

    Thanks for your response, I tried to override getCachedEngineId() and return a static string, but a crash happened when I launched the Activity, it told me that the requested cached FlutterEngine did not exist with the static name.
19. ShoaibKakal commented on Feb 5, 2024

    

    ShoaibKakal

    on Feb 5, 2024

    More actions

    How is this issue going? I have the same issue when I use FlutterEngineGroup and FlutterFragmentActivity.
    Here are my codes:

    override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            val path = FlutterInjector.instance().flutterLoader().findAppBundlePath()
            val dartEntrypoint = DartExecutor.DartEntrypoint(path, ENTRY_POINT)
            engine = engines.createAndRunEngine(this, dartEntrypoint)
    }
    
    ...
    
    override fun provideFlutterEngine(context: Context): FlutterEngine? {
            return engine
    }
    
    override fun onDestroy() {
            super.onDestroy()
            engine.destroy() // crashed here. error message: Cannot execute operation because FlutterJNI is not attached to native.
    }

    you should override getCachedEngineId().

    Thanks for your response, I tried to override getCachedEngineId() and return a static string, but a crash happened when I launched the Activity, it told me that the requested cached FlutterEngine did not exist with the static name.

    I see you're not using FlutterEngineCache. You should first put your engine in cache with a unique id and then return that id from getCachedEngineId().

       override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            val path = FlutterInjector.instance().flutterLoader().findAppBundlePath()
            val dartEntrypoint = DartExecutor.DartEntrypoint(path, ENTRY_POINT)
            engine = engines.createAndRunEngine(this, dartEntrypoint)
            FlutterEngineCache.getInstance()
                .put(engineId, "tianjyan")
    }
    
    ...
    
    override fun provideFlutterEngine(context: Context): FlutterEngine? {
            return FlutterEngineCache.getInstance()["tianjyan"]
    }
    
        override fun getCachedEngineId(): String? {
            return "tianjyan"
        }
    
    

    Solution 2:
    I would highly recommend you to prewarm your engine in BaseApplication or in any root class to avoid other issues like engine not found. This is because you're trying to access an engine which is not yet setup as prewarming engine takes time.
    Hope it will help you.

    🎉React with 🎉2Reacted by Damir Zekic and Dmitri Yurchenko

    🚀React with 🚀2Reacted by Damir Zekic and Dmitri Yurchenko
20. tianjyan commented on Feb 6, 2024

    

    tianjyan

    on Feb 6, 2024

    More actions

    @ShoaibKakal I got you. Thanks a lot.
21. Hixie

    removed

    multiteam-retriage-candidate

    on Mar 6, 2024
22. itaishalom commented on Mar 17, 2025

    

    itaishalom

    on Mar 17, 2025

    Last edited by itaishalom

    More actions

    Getting this stack trace when app is closed with back button and then reopened, is it related?

    java.lang.RuntimeException - Cannot execute operation because FlutterJNI is not attached to native.

    io.flutter.embedding.engine.FlutterJNI.ensureAttachedToNative (Unknown Source:9)
    io.flutter.embedding.engine.FlutterJNI.dispatchPointerDataPacket (Unknown Source:3)
    io.flutter.embedding.engine.renderer.FlutterRenderer.dispatchPointerDataPacket (Unknown Source:2)
    io.flutter.embedding.android.AndroidTouchProcessor.onTouchEvent (SourceFile:13)
    io.flutter.embedding.android.AndroidTouchProcessor.onTouchEvent (SourceFile:1)
    io.flutter.embedding.android.FlutterView.onTouchEvent (Unknown Source:16)
    android.view.View.dispatchTouchEvent (View.java:15076)
23. relaxedSoul commented on Sep 1, 2025

    

    relaxedSoul

    on Sep 1, 2025

    More actions

    @itaishalom I had the similar exception, when the following happened:

    • I store the engine's reference somewhere in long-living service, like Accessibility Service.
    • The MainActivity extends the FlutterFragmentActivity
    • The method provideFlutterEngine is overriden in MainActivity and returns the same engine's reference

    Once the activity is closed, the engine's dart executor will be destroyed and the FlutterJNI will be detached.

    So, this is kind of related - the logs you shared is one of the signs that the engine you expected to use was destroyed.

    --
    As it is noticed above, please override these methods in MainActivity as well:
    getCachedEngineId(), provideFlutterEngine(context) (I assume it is already overriden)

    There are comments above with details regarding the reason