[Bug]: Unable to request camera or photo permissions on iOS 18.0.1

[tonyliao273]

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

When requesting camera or photo permissions, nothing happens. Requesting them again still does nothing, but the following error appears in the log

1. Requesting camera or photo permissions results in no action.
2. Requesting camera or photo permissions again still does nothing, but the following error is logged:

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(ERROR_ALREADY_REQUESTING_PERMISSIONS, A request for permissions is already running, please wait for it to finish before doing another request (note that you can request multiple permissions at the same time)., null, null)
#0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:648:7)
#1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:334:18)

#2 MethodChannelPermissionHandler.requestPermissions (package:permission_handler_platform_interface/src/method_channel/method_channel_permission_handler.dart:80:9)

#3 PermissionActions.request (package:permission_handler/permission_handler.dart:109:10)

Note:

1. This issue also occurs with photo permissions but works fine with notification permissions.
2. The issue is consistently reproducible on iOS 18.0.1 but works as expected on iOS 16.0, 17.2.1, and 18.1.1.

Expected results

On iOS 18.0.1 devices, requesting camera or photo permissions will trigger the system permission UI or any callbacks.

Actual results

On iOS 18.0.1 devices, requesting camera or photo permissions does not trigger the system permission UI or any callbacks.

Code sample

Code sample

      showCupertinoModalPopup(
        context: context,
        builder: (context) => CupertinoActionSheet(
          actions: [
            CupertinoActionSheetAction(
              child: Text( ... ),
              onPressed: () async {
                // close the options modal
                Navigator.of(context).pop();
                // get image from camera
                Permission.camera.onDeniedCallback(() {
                  _showNoCameraPermissionDialog(context);
                }).onGrantedCallback(() async {
                  final url = await _getImageFromCamera();
                  if (url != null) {
                    Facade.instance.navigatorKey.currentContext
                        ?.push('/edit_image', extra: File(url.path));
                  }
                }).onPermanentlyDeniedCallback(() {
                  _showNoCameraPermissionDialog(context);
                }).onRestrictedCallback(() {
                  _showNoCameraPermissionDialog(context);
                }).onLimitedCallback(() {
                  _showNoCameraPermissionDialog(context);
                }).onProvisionalCallback(() {
                  _showNoCameraPermissionDialog(context);
                }).request();
              },
            ),
            CupertinoActionSheetAction(
              child: Text(...),
              onPressed: () async {
                // close the options modal
                Navigator.of(context).pop();
                Permission.photos.onDeniedCallback(() {
                  _showNoPhotoLibraryPermissionDialog(context);
                }).onGrantedCallback(() async {
                  // get image from gallery
                  final url = await _getImageFromGallery();
                  if (url != null) {
                    Facade.instance.navigatorKey.currentContext
                        ?.push('/edit_image', extra: File(url.path));
                  }
                }).onPermanentlyDeniedCallback(() {
                  _showNoPhotoLibraryPermissionDialog(context);
                }).onRestrictedCallback(() {
                  _showNoPhotoLibraryPermissionDialog(context);
                }).onLimitedCallback(() async {
                  // get image from gallery
                  final url = await _getImageFromGallery();
                  if (url != null) {
                    Facade.instance.navigatorKey.currentContext
                        ?.push('/edit_image', extra: File(url.path));
                  }
                }).onProvisionalCallback(() {
                  _showNoPhotoLibraryPermissionDialog(context);
                }).request();
              },
            ),
          ],
          cancelButton: CupertinoActionSheetAction(
            child: Text(...),
            onPressed: () {
              Navigator.of(context).pop();
            },
          ),
        ),
      );

void _showNoCameraPermissionDialog(BuildContext context) {
    showAlertDialog(
      context: context,
      title: ...,
      content: ...,
      cancelActionText: ...,
      defaultActionText: ...,
      onDefaultAction: () {
        openAppSettings();
      },
    );
  }

  void _showNoPhotoLibraryPermissionDialog(BuildContext context) {
    showAlertDialog(
      context: context,
      title: ...,
      content: ...,
      cancelActionText: ...,
      defaultActionText: ...,
      onDefaultAction: () {
        openAppSettings();
      },
    );
  }

  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      config.build_settings['CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES'] = 'YES'
      config.build_settings['ENABLE_BITCODE'] = 'NO'
      # You can enable the permissions needed here. For example to enable camera
      # permission, just remove the `#` character in front so it looks like this:
      #
      # ## dart: PermissionGroup.camera
      # 'PERMISSION_CAMERA=1'
      #
      #  Preprocessor definitions can be found in: https://github.com/Baseflow/flutter-permission-handler/blob/master/permission_handler_apple/ios/Classes/PermissionHandlerEnums.h
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',

        ## dart: PermissionGroup.calendar
        # 'PERMISSION_EVENTS=1',

        ## dart: PermissionGroup.reminders
        # 'PERMISSION_REMINDERS=1',

        ## dart: PermissionGroup.contacts
        # 'PERMISSION_CONTACTS=1',

        ## dart: PermissionGroup.camera
        'PERMISSION_CAMERA=1',

        ## dart: PermissionGroup.microphone
        # 'PERMISSION_MICROPHONE=1',

        ## dart: PermissionGroup.speech
        # 'PERMISSION_SPEECH_RECOGNIZER=1',

        ## dart: PermissionGroup.photos
        'PERMISSION_PHOTOS=1',

        ## dart: [PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse]
        # 'PERMISSION_LOCATION=1',

        ## dart: PermissionGroup.notification
        'PERMISSION_NOTIFICATIONS=1',

        ## dart: PermissionGroup.mediaLibrary
        # 'PERMISSION_MEDIA_LIBRARY=1',

        ## dart: PermissionGroup.sensors
        # 'PERMISSION_SENSORS=1',   

        ## dart: PermissionGroup.bluetooth
        # 'PERMISSION_BLUETOOTH=1',

        ## dart: PermissionGroup.appTrackingTransparency
        # 'PERMISSION_APP_TRACKING_TRANSPARENCY=1',

        ## dart: PermissionGroup.criticalAlerts
        # 'PERMISSION_CRITICAL_ALERTS=1'
      ]
    end
  end

Screenshots or video

iOS 18.0.1

output.mp4

iOS 16.0

output2.mp4

Version

11.3.1

Flutter Doctor output

Doctor output

[✓] Flutter (Channel stable, 3.22.2, on macOS 15.1 24B83 darwin-arm64, locale zh-Hant-TW)
    • Flutter version 3.22.2 on channel stable at /Users/tonyliao/fvm/versions/3.22.2
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 761747bfc5 (6 months ago), 2024-06-05 22:15:13 +0200
    • Engine revision edd8546116
    • Dart version 3.4.3
    • DevTools version 2.34.3

[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
    • Android SDK at /Users/tonyliao/Library/Android/sdk
    • Platform android-35, build-tools 35.0.0
    • ANDROID_HOME = /Users/tonyliao/Library/Android/sdk
    • ANDROID_SDK_ROOT = /Users/tonyliao/Library/Android/sdk
    • Java binary at: /Users/tonyliao/Applications/Android Studio Koala Feature Drop 2024.1.2 RC 1.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
    • Xcode at /Applications/Xcode-16.0.0.app/Contents/Developer
    • Build 16A242d
    • CocoaPods version 1.15.2

[✓] Android Studio (version 2022.3)
    • Android Studio at /Applications/Android Studio.Giraffe 2022.3.1.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 17.0.6+0-17.0.6b829.9-10027231)

[✓] Android Studio (version 2024.1)
    • Android Studio at /Users/tonyliao/Applications/Android Studio Koala Feature Drop 2024.1.2 RC 1.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 17.0.11+0-17.0.11b1207.24-11852314)

[!] Android Studio (version unknown)
    • Android Studio at /Users/tonyliao/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
    ✗ Unable to determine Android Studio version.
    • Java version OpenJDK Runtime Environment (build 17.0.10+0-17.0.10b1087.21-11572160)

[✓] VS Code (version 1.95.3)
    • VS Code at /Applications/Visual Studio Code-Arm64.app/Contents
    • Flutter extension version 3.102.0

[✓] Connected device (5 available)
    • Pixel 9 (mobile)                • 46271FDAQ111W1                           • android-arm64 • Android 15 (API 35)
    • CP081 iPhone 15 (mobile)        • 00008122-1119389E0A82201E                • ios           • iOS 18.0.1 22A3370
    • CP038 iPhone 8 (mobile)         • 85315293e171117d61bdca83470831a4a5185f84 • ios           • iOS 16.0 20A362
    • macOS (desktop)                 • macos                                    • darwin-arm64  • macOS 15.1 24B83 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad                    • darwin        • macOS 15.1 24B83 darwin-arm64

[✓] Network resources
    • All expected network resources are available.

[doasinfinity]

You could try the following way and see if it works. This work for me.

1. Add the following to your Podfile file:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      # You can remove unused permissions here
      # for more information: https://github.com/BaseflowIT/flutter-permission-handler/blob/master/permission_handler/ios/Classes/PermissionHandlerEnums.h
      # e.g. when you don't need camera permission, just add 'PERMISSION_CAMERA=0'
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',

        ## dart: PermissionGroup.calendar
         #'PERMISSION_EVENTS=1',
        
        ## dart: PermissionGroup.calendarFullAccess
         #'PERMISSION_EVENTS_FULL_ACCESS=1',

        ## dart: PermissionGroup.reminders
         #'PERMISSION_REMINDERS=1',

        ## dart: PermissionGroup.contacts
         #'PERMISSION_CONTACTS=1',

        ## dart: PermissionGroup.camera
        'PERMISSION_CAMERA=1',

        ## dart: PermissionGroup.microphone
         #'PERMISSION_MICROPHONE=1',

        ## dart: PermissionGroup.speech
         #'PERMISSION_SPEECH_RECOGNIZER=1',

        ## dart: PermissionGroup.photos
        'PERMISSION_PHOTOS=1',

        ## The 'PERMISSION_LOCATION' macro enables the `locationWhenInUse` and `locationAlways` permission. If
        ## the application only requires `locationWhenInUse`, only specify the `PERMISSION_LOCATION_WHENINUSE`
        ## macro.
        ##
        ## dart: [PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse]
         #'PERMISSION_LOCATION=1',
         #'PERMISSION_LOCATION_WHENINUSE=0',

        ## dart: PermissionGroup.notification
         #'PERMISSION_NOTIFICATIONS=1',

        ## dart: PermissionGroup.mediaLibrary
         'PERMISSION_MEDIA_LIBRARY=1',

        ## dart: PermissionGroup.sensors
         #'PERMISSION_SENSORS=1',

        ## dart: PermissionGroup.bluetooth
         #'PERMISSION_BLUETOOTH=1',

        ## dart: PermissionGroup.appTrackingTransparency
         #'PERMISSION_APP_TRACKING_TRANSPARENCY=1',

        ## dart: PermissionGroup.criticalAlerts
         #'PERMISSION_CRITICAL_ALERTS=1',

        ## dart: PermissionGroup.criticalAlerts
         #'PERMISSION_ASSISTANT=1',
      ]
    end
    flutter_additional_ios_build_settings(target)
  end
end

2. Remove the # character in front of the permission you want to use. For example, if you need access to the calendar make sure the code looks like this: 'PERMISSION_PHOTOS=1',
3. flutter clean
4. flutter pub get
5. flutter run