Solve: Why Your Permission Popup May Not Be Displaying in Flutter (iOS)

It’s possible that the alert doesn’t appear, OK I will show you how to solve this issue:

1- I added permission_handler: ^6.1.1 in the pubspec.yaml

2- Run flutter pub get

3- In the info.plist I added the permission like below:

 <!-- Permission options for the `location` group -->
       <key>NSLocationWhenInUseUsageDescription</key>
       <string>Need location when in use</string>
       <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
       <string>Always and when in use!</string>
       <key>NSLocationUsageDescription</key>
       <string>Older devices need location.</string>
       <key>NSLocationAlwaysUsageDescription</key>
       <string>Can I have location always?</string>

4- in the pod file I added the following lines:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      # You can remove unused permissions here
      # for more infomation: https://github.com/BaseflowIT/flutter-permission-handler/blob/develop/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=0',

        ## dart: PermissionGroup.reminders
        'PERMISSION_REMINDERS=0',

        ## dart: PermissionGroup.contacts
        'PERMISSION_CONTACTS=0',

        ## dart: PermissionGroup.camera
        'PERMISSION_CAMERA=0',

        ## dart: PermissionGroup.microphone
        'PERMISSION_MICROPHONE=0',

        ## dart: PermissionGroup.speech
        'PERMISSION_SPEECH_RECOGNIZER=0',

        ## dart: PermissionGroup.photos
        'PERMISSION_PHOTOS=0',

        ## dart: [PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse]
        # 'PERMISSION_LOCATION=0',

        ## dart: PermissionGroup.notification
        'PERMISSION_NOTIFICATIONS=0',

        ## dart: PermissionGroup.mediaLibrary
        'PERMISSION_MEDIA_LIBRARY=0',

        ## dart: PermissionGroup.sensors
        'PERMISSION_SENSORS=0'
      ]
    end

5- Then added to Code:

bool allowed = await Permission.locationWhenInUse.isGranted;

    if (allowed == false) {
      final PermissionStatus status =
          await Permission.locationWhenInUse.request();
      allowed = status.isGranted;
    }

Add to above code to example code

import 'package:flutter/material.dart';
import 'package:geolocator/geolocator.dart';
import 'package:permission_handler/permission_handler.dart';

class LoadingScreen extends StatefulWidget {
  @override
  _LoadingScreenState createState() => _LoadingScreenState();
}

class _LoadingScreenState extends State<LoadingScreen> {
  void getLocation() async {
    bool allowed = await Permission.locationWhenInUse.isGranted;
    if (allowed == false) {
      final PermissionStatus status =
          await Permission.locationWhenInUse.request();
      allowed = status.isGranted;
    }
    Position position = await Geolocator.getCurrentPosition(
        desiredAccuracy: LocationAccuracy.high);
    print(position);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: () {
            //Get the current location
            getLocation();
          },
          child: Text('Get Location'),
        ),
      ),
    );
  }
}

6- Go throw ios folder and run pod install

7- Run your app and see the result

Hope is helpful

Ahmadreza Shamimi is Creating Amazing Programming Contents