fcm_config

What can this packge do

• Show fcm notification while app is in forground
• Easly recieve incoming notification where you are
• Easly recieve clicked where you are
• Notification is an object

Setup

fcm_config:
  git: 
    url: https://github.com/Shreemanarjun/fcm_config.git    
    path: fcm_config         

Android

• Follow steps here https://firebase.flutter.dev/docs/installation/android
• open android/app/src/main/AndroidManifest.xml file
• Add the following meta-data schema within the application component

• after or befaore this

 <meta-data android:name="flutterEmbedding" android:value="2" />

• set this

<meta-data
  android:name="com.google.firebase.messaging.default_notification_channel_id"
  android:value="high_importance_channel" /> 

you can change to your own value high_importance_channel but note it will be used later

• if you want to change default icon you can do this

 <meta-data android:name="com.google.firebase.messaging.default_notification_icon" android:resource="@mipmap/custom_icon" />

• you can change @mipmap/custom_icon to any icon from mipmap or drawable its up to you but note this will be applied for background only
• you can set foreground from dart code

Ios

• Follow steps here https://firebase.flutter.dev/docs/installation/ios

• Then here https://firebase.flutter.dev/docs/messaging/apple-integration

• iOS 10 is now the minimum supported version by FlutterFire. Please update your build target version.
• you can not change default icon

MacOs

• Follow steps here https://firebase.flutter.dev/docs/installation/macos

• Then here https://firebase.flutter.dev/docs/messaging/apple-integration

• you can not change default icon

Web

• Follow steps here https://firebase.flutter.dev/docs/installation/web

• Add fcm js liberary like here https://firebase.flutter.dev/docs/messaging/overview#5-web-only-add-the-sdk

• Add firebase-messaging-sw.js in your web folder see the example to see what this file contains

Dart/Flutter

Initialize

  void main() async {
      await FCMConfig.instance
      .init(
          defaultAndroidForegroundIcon: '@mipmap/ic_launcher', //default is @mipmap/ic_launcher
          defaultAndroidChannel: AndroidNotificationChannel(
            'high_importance_channel',// same as value from android setup
            'Fcm config',
            importance: Importance.high,
            sound: RawResourceAndroidNotificationSound('notification'),
          ),
      );
      runApp(MaterialApp(
        home: MyHomePage(),
      ));
  }

Background messages(Web not supported)

• To handle message in background you can do that

    Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async {
     print("Handling a background message: ${message.messageId}");
    }
      
    void main() async {
      FCMConfig.instance.init(onBackgroundMessage:_firebaseMessagingBackgroundHandler);
      runApp(MaterialApp(
        home: MyHomePage(),
      ));
    }

• To know more about background handler please https://firebase.flutter.dev/docs/messaging/usage#background-messages

Get token

  FCMConfig.instance.messaging.getToken().then((token) {
        print(token);
   });

To get notification that launched the application

  await  FCMConfig.instance.getInitialMessage();// may be null
 

Listen to incomming notification :

• First option

   class MyScreen extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return FCMNotificationListener(
         onNotification:
             (RemoteMessage notification, void Function() setState) {},
         child: SizedBox(),
       );
     }
   }

• Second option

   class MyScreen extends StatefulWidget {
     @override
     _MyScreenState createState() => _MyScreenState();
   }
   
   class _MyScreenState extends State<MyScreen>
       with FCMNotificationMixin {
     @override
     Widget build(BuildContext context) {
       return SizedBox();
     }
   
     @override
     void onNotify(RemoteMessage notification) {
       // do some thing
     }
   }
   

Listen to notification tap:

• First option

   class MyScreen extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return FCMNotificationClickListener(
         onNotificationClick:
             (RemoteMessage notification, void Function() setState) {},
         child: SizedBox(),
       );
     }
   }

• Second option

   class MyScreen extends StatefulWidget {
     @override
     _MyScreenState createState() => _MyScreenState();
   }
   
   class _MyScreenState extends State<MyScreen>
       with FCMNotificationClickMixin {
     @override
     Widget build(BuildContext context) {
       return SizedBox();
     }
   
     @override
     void onClick(RemoteMessage notification) {
       // do some thing
     }
   }
   

Localize your notification

see https://pub.dev/packages/fcm_localization