[Bug]: (Android13+) The plugin will crash after switching the permission status multiple times on the "All File access" page and exiting

[songwj9527]

Please check the following before submitting a new issue.

• I have searched the existing issues.
• I have carefully read the documentation and verified I have added the required platform specific configuration.

Please select affected platform(s)

• Android
• iOS
• Windows

Steps to reproduce

• Step1
  Apply for permission to manage all files.

• Step2
  Switch the permission status multiple times on the "All File access" page.

• Step3
  Exit the "All File access" page.

Expected results

The plugin wiil crash in the 'onActivityResult()' function.

Actual results

2025-06-16 11:15:40.670 8702-8702 AndroidRuntime com.example E FATAL EXCEPTION: main
Process: com.example, PID: 8702
java.lang.RuntimeException: Unable to resume activity {com.example/com.example.MainActivity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=210, result=0, data=null} to activity {com.example/com.example.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Map.put(java.lang.Object, java.lang.Object)' on a null object reference
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4844)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4877)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2345)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7941)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1019)
Caused by: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=210, result=0, data=null} to activity {com.example/com.example.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Map.put(java.lang.Object, java.lang.Object)' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:5388)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4830)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4877)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2345)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7941)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1019)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Map.put(java.lang.Object, java.lang.Object)' on a null object reference
at com.baseflow.permissionhandler.PermissionManager.onActivityResult(PermissionManager.java:128)
at io.flutter.embedding.engine.FlutterEngineConnectionRegistry$FlutterEngineActivityPluginBinding.onActivityResult(FlutterEngineConnectionRegistry.java:774)
at io.flutter.embedding.engine.FlutterEngineConnectionRegistry.onActivityResult(FlutterEngineConnectionRegistry.java:422)
at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onActivityResult(FlutterActivityAndFragmentDelegate.java:964)
at io.flutter.embedding.android.FlutterActivity.onActivityResult(FlutterActivity.java:911)
at android.app.Activity.dispatchActivityResult(Activity.java:8613)
at android.app.ActivityThread.deliverResults(ActivityThread.java:5381)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4830)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4877)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2345)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7941)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:569)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1019)

Code sample

Permission.manageExternalStorage.request();

Screenshots or video

No response

Version

12.0.1

Flutter Doctor output

/Users/gmac1/Development/flutter/bin/flutter doctor --verbose
[!] Flutter (Channel [user-branch], 3.24.5, on macOS 15.4.1 24E263 darwin-arm64, locale zh-Hans-CN)
! Flutter version 3.24.5 on channel [user-branch] at /Users/gmac1/Development/flutter
Currently on an unknown channel. Run flutter channel to switch to an official channel.
If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/setup.
! Upstream repository unknown source is not a standard remote.
Set environment variable "FLUTTER_GIT_URL" to unknown source to dismiss this error.
• Framework revision dec2ee5c1f (8 months ago), 2024-11-13 11:13:06 -0800
• Engine revision a18df97ca5
• Dart version 3.5.4
• DevTools version 2.37.3
• Pub download mirror https://mirrors.tuna.tsinghua.edu.cn/dart-pub
• Flutter download mirror https://mirrors.tuna.tsinghua.edu.cn/flutter
• If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.

[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.1)
• Android SDK at /Users/gmac1/Library/Android/sdk
• Platform android-35, build-tools 35.0.1
• ANDROID_HOME = /Users/gmac1/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 21.0.5+-13047016-b750.29)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16E140
• CocoaPods version 1.16.2

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

[✓] Android Studio (version 2024.2)
• Android Studio at /Applications/Android Studio.app/Contents
• 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 21.0.5+-13047016-b750.29)

[✓] Connected device (4 available)
• WP856 (mobile) • 34401F038F • android-arm64 • Android 13 (API 33)

[songwj9527]

The system will restart the application when the permission status of the "Manage All Files" permission page switches from enabled to disabled. The PermissionManager. requestResults object has been released due to application restart, but the onActiveResult() method will still be executed because the plugin has not released the relevant listening for activity.