Unhandled Exception: PlatformException(PermissionHandler.PermissionManager, Unable to detect current Android Activity., null)

[yinzelin627]

E/flutter: [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(PermissionHandler.PermissionManager, Unable to detect current Android Activity., null)
#0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
#1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:18)

#2 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:329:12)
#3 MethodChannelPermissionHandler.requestPermissions (package:permission_handler_platform_interface/src/method_channel/method_channel_permission_handler.dart:66:30)
#4 PermissionListActions.request (package:permission_handler/permission_handler.dart:105:16)
#5 PermissionUtil.deal (package:fluttermodule/common/utils/permission_util.dart:13:23)
#6 _DemoImagePictureState.loadAssets (package:fluttermodule/page/demo_image_picture.dart:67:43)
#7 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:779:19)
#8 _InkResponseState.build. (package:flutter/src/material/ink_well.dart:862:36)
#9 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
#10 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:504:11)
#11 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:282:5)
#12 BaseTapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:217:7)
#13 PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:475:9)
#14 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:76:12)
#15 PointerRouter._dispatchEventToRoutes. (package:flutter/src/gestures/pointer_router.dart:122:9)
#16 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:379:8)
#17 PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:120:18)
#18 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:106:7)
#19 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:218:19)
#20 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:198:22)
#21 GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)
#22 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)
#23 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)
#24 _rootRunUnary (dart:async/zone.dart:1196:13)
#25 _CustomZone.runUnary (dart:async/zone.dart:1085:19)
#26 _CustomZone.runUnaryGuarded (dart:async/zone.dart:987:7)
#27 _invoke1 (dart:ui/hooks.dart:275:10)
#28 _dispatchPointerDataPacket (dart:ui/hooks.dart:184:5)

[ghost]

PermissionHandler.PermissionManager, Unable to detect current Android Activity., null)

[ghost]

if (await permission.isGranted) {
// Either the permission was already granted before or the user just granted it.
return true;
}

[Sempakonka]

Hi @CentForever
Can you provide some more information? e.g. the version you are using and the output of the flutter doctor -v command. I can't seem to reproduce your issue.
Also, could this be related, or even a duplicate of #269?

[rezazrna]

any update?, i had the same issue

[no-response]

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.

[nmfisher]

Can we reopen this? Same issue when running Permission.microphone.request() from a non-UI isolate (on plugin version 6.1.1).

D/permissions_handler(14367): Unable to detect current Activity.
I/flutter (14367): PlatformException(PermissionHandler.PermissionManager, Unable to detect current Android Activity., null, null)

C:\Users\Nick\Documents\Projects\flutter_isolate>flutter doctor -v
[√] Flutter (Channel master, 2.1.0-13.0.pre.194, on Microsoft Windows [Version 10.0.18363.1440], locale en-AU)
• Flutter version 2.1.0-13.0.pre.194 at C:\flutter
• Framework revision e58ee0fbc7 (12 hours ago), 2021-03-22 13:06:06 +0800
• Engine revision e6db3a275e
• Dart version 2.13.0 (build 2.13.0-149.0.dev)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at C:\Users\Nick\AppData\Local\Android\sdk
• Platform android-30, build-tools 29.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\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_212-release-1586-b04)

[√] VS Code (version 1.54.3)
• VS Code at C:\Users\Nick\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.20.0

[√] Connected device (3 available)
• SM J260FU (mobile) • aca90691 • android-arm • Android 8.1.0 (API 27)
• Chrome (web) • chrome • web-javascript • Google Chrome 89.0.4389.90
• Edge (web) • edge • web-javascript • Microsoft Edge 89.0.774.57

• No issues found!

[felipecpassos]

I have the same problem as @nmfisher
Please help.

[nmfisher]

Just spent a few hours digging through the plugin to see how this can be fixed.

Background - I want to request microphone permissions from some code that's running in a secondary FlutterEngine that is created in a background isolate. On Android, this FlutterEngine is created without an associated Activity, which is causing the error message "Unable to detect current Android Activity".

As far as I can see, Android has no way of requesting permissions without an Activity.

As a workaround, you need to launch a temporary/invisible Activity that handles the permission request, then kills itself when done.

I've created a proof-of-concept here but this definitely isn't production-ready (for example, concurrent/asynchronous requests (without await) on the Dart side won't complete properly.

The reason I'm not going to finish it off is because it's trivial enough for me to just request permissions in the foreground. I figured I'd push to GitHub in case anyone wants to take it further.

[FadiChaalab]

I also need to check permission in background. How did you get the workaround and please provide a link for that or just example of code here.

[kcibdev]

Is there any update on this?

[emreedgu]

low level coded beauty ?

[Rumike7]

So we can't ask permission from background with this package?

[xbug42]

The 'active' issue is here : #269

[AwaisQazii]

same issue