development notifications

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.uth.up_to_health">
    <application
+        android:name=".Application"
         android:label="up_to_health"
         android:icon="@mipmap/ic_launcher">
         <activity
@@ -30,8 +31,6 @@
             <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>
         <!-- Don't delete the meta-data below.

android/app/src/main/kotlin/com/uth/up_to_health/Application.kt

@@ -0,0 +1,34 @@
+package com.uth.up_to_health
+import io.flutter.app.FlutterApplication
+import io.flutter.plugin.common.PluginRegistry
+import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback
+import io.flutter.view.FlutterMain
+import io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingBackgroundService
+
+import android.os.Build
+import android.app.NotificationManager
+import android.app.NotificationChannel
+
+class Application : FlutterApplication(), PluginRegistrantCallback {
+
+    override fun onCreate() {
+        super.onCreate()
+        FlutterFirebaseMessagingBackgroundService.setPluginRegistrant(this);
+        FlutterMain.startInitialization(this)
+    }
+
+    override fun registerWith(registry: PluginRegistry?) {
+    }
+
+    fun createNotificationChannels() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val name = "groupChannel";
+            val descriptionText = "This is the group channel";
+            val importance = NotificationManager.IMPORTANCE_HIGH;
+            val mChannel = NotificationChannel("59054", name, importance);
+            mChannel.description = descriptionText;
+            val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager;
+            notificationManager.createNotificationChannel(mChannel);
+        }
+    }
+}