add receive notification on Android

Author: duytq94

android/app/build.gradle

@@ -61,7 +61,6 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
-    compile 'com.google.firebase:firebase-core:17.0.0'
 }
 
 apply plugin: 'com.google.gms.google-services'

android/app/src/main/AndroidManifest.xml

@@ -1,38 +1,30 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.dfa.flutterchatdemo">
 
-    <!-- The INTERNET permission is required for development. Specifically,
-         flutter needs it to communicate with the running application
-         to allow setting breakpoints, to provide hot reload, etc.
-    -->
-    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.INTERNET" />
 
-    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
-         calls FlutterMain.startInitialization(this); in its onCreate method.
-         In most cases you can leave this as-is, but you if you want to provide
-         additional functionality it is fine to subclass or reimplement
-         FlutterApplication and put your custom class here. -->
     <application
         android:name="io.flutter.app.FlutterApplication"
-        android:label="flutter_chat_demo"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:label="flutter_chat_demo">
         <activity
             android:name=".MainActivity"
-            android:launchMode="singleTop"
-            android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
             android:hardwareAccelerated="true"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
             android:windowSoftInputMode="adjustResize">
-            <!-- This keeps the window background of the activity showing
-                 until Flutter renders its first frame. It can be removed if
-                 there is no splash screen (such as the default splash screen
-                 defined in @style/LaunchTheme). -->
             <meta-data
                 android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
                 android:value="true" />
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <action android:name="FLUTTER_NOTIFICATION_CLICK" />
+                <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
     </application>

lib/login.dart

@@ -91,10 +91,12 @@ class LoginScreenState extends State<LoginScreen> {
       final List<DocumentSnapshot> documents = result.documents;
       if (documents.length == 0) {
         // Update data to server if new user
-        Firestore.instance
-            .collection('users')
-            .document(firebaseUser.uid)
-            .setData({'nickname': firebaseUser.displayName, 'photoUrl': firebaseUser.photoUrl, 'id': firebaseUser.uid});
+        Firestore.instance.collection('users').document(firebaseUser.uid).setData({
+          'nickname': firebaseUser.displayName,
+          'photoUrl': firebaseUser.photoUrl,
+          'id': firebaseUser.uid,
+          'createdAt': DateTime.now().millisecondsSinceEpoch.toString()
+        });
 
         // Write data to local
         currentUser = firebaseUser;

lib/main.dart

@@ -4,11 +4,13 @@ import 'dart:io';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:firebase_auth/firebase_auth.dart';
+import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_chat_demo/chat.dart';
 import 'package:flutter_chat_demo/const.dart';
 import 'package:flutter_chat_demo/login.dart';
 import 'package:flutter_chat_demo/settings.dart';
+import 'package:fluttertoast/fluttertoast.dart';
 import 'package:google_sign_in/google_sign_in.dart';
 
 void main() => runApp(MyApp());
@@ -26,13 +28,42 @@ class MainScreenState extends State<MainScreen> {
   MainScreenState({Key key, @required this.currentUserId});
 
   final String currentUserId;
+  final FirebaseMessaging firebaseMessaging = new FirebaseMessaging();
 
   bool isLoading = false;
   List<Choice> choices = const <Choice>[
     const Choice(title: 'Settings', icon: Icons.settings),
     const Choice(title: 'Log out', icon: Icons.exit_to_app),
   ];
 
+  @override
+  void initState() {
+    super.initState();
+    registerNotification();
+  }
+
+  void registerNotification() {
+    firebaseMessaging.requestNotificationPermissions();
+
+    firebaseMessaging.configure(onMessage: (Map<String, dynamic> message) {
+      print('onMessage: $message');
+      return;
+    }, onResume: (Map<String, dynamic> message) {
+      print('onResume: $message');
+      return;
+    }, onLaunch: (Map<String, dynamic> message) {
+      print('onLaunch: $message');
+      return;
+    });
+
+    firebaseMessaging.getToken().then((token) {
+      print('token $token');
+      Firestore.instance.collection('users').document(currentUserId).updateData({'pushToken': token});
+    }).catchError((err) {
+      Fluttertoast.showToast(msg: err.message.toString());
+    });
+  }
+
   Future<bool> onBackPress() {
     openDialog();
     return Future.value(false);

pubspec.lock

@@ -78,6 +78,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.0+6"
+  firebase_messaging:
+    dependency: "direct main"
+    description:
+      name: firebase_messaging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.0"
   firebase_storage:
     dependency: "direct main"
     description:
@@ -179,6 +186,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
   quiver:
     dependency: transitive
     description:

pubspec.yaml

@@ -15,6 +15,7 @@ dependencies:
   firebase_storage: 3.0.2
   cached_network_image: ^1.0.0
   intl: ^0.15.7
+  firebase_messaging: 5.1.0
 
 dev_dependencies:
   flutter_test: