adb logcat *:S flutter:V

flutter clean
flutter pub get
flutter pub run build_runner build --delete-conflicting-outputs


flutter pub outdated --mode=null-safety
flutter pub upgrade --null-safety

name: App1Dev
dart encrypt point: D:\wdsi\flutter\WOC_Flutter\lib\main.dart
additional arguments: --dart-define=flavor=app1_dev
buildflavor: dev1

flutter build apk --dart-define=flavor=app1_dev --flavor=dev1 -t lib/main.dart --no-shrink
flutter build apk --release --dart-define=flavor=app1_dev --flavor=dev1 -t lib/main.dart --no-shrink

//You should place the required permissions in your applications
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>

And to use it in iOS, you have to add this permission in Info.plist :

// This is probably the only one you need. Background location is supported
// by this -- the caveat is that a blue badge is shown in the status bar
// when the app is using location service while in the background.
NSLocationWhenInUseUsageDescription

// Deprecated, use NSLocationAlwaysAndWhenInUseUsageDescription instead.
NSLocationAlwaysUsageDescription

// Use this very carefully. This key is required only if your iOS app
// uses APIs that access the user’s location information at all times,
// even if the app isn't running.
NSLocationAlwaysAndWhenInUseUsageDescription


//To receive location when application is in background, to Info.plist you have to add property list key :
UIBackgroundModes

//with string value:
location

General setup
Add the following lines to the didFinishLaunchingWithOptions method in the AppDelegate.m/AppDelegate.swift file of your iOS project

Objective-C:

if (@available(iOS 10.0, *)) {
  [UNUserNotificationCenter currentNotificationCenter].delegate = (id<UNUserNotificationCenterDelegate>) self;
}
Swift:

if #available(iOS 10.0, *) {
  UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
}

Specify your API key in the application manifest android/app/src/main/AndroidManifest.xml:
<manifest ...
  <application ...
    <meta-data android:name="com.google.android.geo.API_KEY"
               android:value="YOUR KEY HERE"/>

//Specify your API key in the application delegate ios/Runner/AppDelegate.m:

#include "AppDelegate.h"
#include "GeneratedPluginRegistrant.h"
#import "GoogleMaps/GoogleMaps.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  [GMSServices provideAPIKey:@"YOUR KEY HERE"];
  [GeneratedPluginRegistrant registerWithRegistry:self];
  return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
@end

//Or in your swift code, specify your API key in the application delegate ios/Runner/AppDelegate.swift:

import UIKit
import Flutter
import GoogleMaps

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    GMSServices.provideAPIKey("YOUR KEY HERE")
    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }
}

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      ... # Here are some configurations automatically generated by flutter

      # 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/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
end

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

| Permission | Info.plist | Macro | | ------------------------------------ | | 
PermissionGroup.calendar | NSCalendarsUsageDescription | PERMISSION_EVENTS 
| | PermissionGroup.reminders | NSRemindersUsageDescription | PERMISSION_REMINDERS 
| | PermissionGroup.contacts | NSContactsUsageDescription | PERMISSION_CONTACTS 
| | PermissionGroup.camera | NSCameraUsageDescription | PERMISSION_CAMERA 
| | PermissionGroup.microphone | NSMicrophoneUsageDescription | PERMISSION_MICROPHONE 
| | PermissionGroup.speech | NSSpeechRecognitionUsageDescription | PERMISSION_SPEECH_RECOGNIZER 
| | PermissionGroup.photos | NSPhotoLibraryUsageDescription | PERMISSION_PHOTOS 
| | PermissionGroup.location, PermissionGroup.locationAlways, PermissionGroup.locationWhenInUse 
| NSLocationUsageDescription, NSLocationAlwaysAndWhenInUseUsageDescription, NSLocationWhenInUseUsageDescription 
| PERMISSION_LOCATION | | PermissionGroup.notification | PermissionGroupNotification | PERMISSION_NOTIFICATIONS 
| | PermissionGroup.mediaLibrary | NSAppleMusicUsageDescription, kTCCServiceMediaLibrary | PERMISSION_MEDIA_LIBRARY 
| | PermissionGroup.sensors | NSMotionUsageDescription | PERMISSION_SENSORS | | PermissionGroup.bluetooth 
| NSBluetoothAlwaysUsageDescription, NSBluetoothPeripheralUsageDescription | PERMISSION_BLUETOOTH 
| | PermissionGroup.appTrackingTransparency | NSUserTrackingUsageDescription | PERMISSION_APP_TRACKING_TRANSPARENCY 
| | PermissionGroup.criticalAlerts | PermissionGroupCriticalAlerts | PERMISSION_CRITICAL_ALERTS |