changes

fcm/.idea/gradle.xml

     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="testRunner" value="PLATFORM" />
+        <option name="disableWrapperSourceDistributionNotification" value="true" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="JDK" />

fcm/app/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.fcm">
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
     <application
         android:allowBackup="true"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.App">
-        <service android:name=".MyFirebaseMessagingService"
+        <service android:name="com.example.fcm.MyFirebaseMessagingService"
             android:exported="false">
             <intent-filter>
                 <action android:name="com.google.firebase.MESSAGING_EVENT" />
             </intent-filter>
         </service>
-        <activity android:name=".MainActivity">
+        <activity android:name="com.example.fcm.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

fcm/app/src/main/java/com/example/fcm/MainActivity.java

 import android.annotation.SuppressLint;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
+import android.content.Context;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
 import android.util.Log;
 import android.widget.Button;
+import android.widget.EditText;
 import android.widget.Toast;
 import com.android.volley.toolbox.JsonObjectRequest;
 import com.example.fcm.databinding.ActivityMainBinding;
     final private String FCM_API = "https://fcm.googleapis.com/fcm/send";
     final private String serverKey = "key=" + "AAAA446tEwQ:APA91bEAqpEFQ0ufbp9WSFIGV68P8kUgNlnKzuEHIcWLeS1YlMwJewRdnAGRae0VpDzriag7ZQbMUMPDiT-LD1kTXLQFM73C9DC13iN4nn9gEYCPVp4MN8JHFm20m1BxS8zWZcKDYFcz";
     final private String contentType = "application/json";
+    final private String topic = "vibration";
     private static final String TAG = "MainActivity";
 
     String NOTIFICATION_TITLE;
         setContentView(binding.getRoot());
 
         Button buttonSend = findViewById(R.id.sendButton);
+        EditText level = findViewById(R.id.level);
+        EditText delay = findViewById(R.id.delay);
+        EditText duration = findViewById(R.id.duration);
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             // Create channel to show notifications.
         binding.subscribeButton.setOnClickListener(v -> {
             Log.d(TAG, "Subscribing to topic");
             // [START subscribe_topics]
-            FirebaseMessaging.getInstance().subscribeToTopic("testForMDT")
+            FirebaseMessaging.getInstance().subscribeToTopic(topic)
                     .addOnCompleteListener(task -> {
                         String msg = getString(R.string.msg_subscribed);
                         if (!task.isSuccessful()) {
         });
 
         buttonSend.setOnClickListener(v -> {
-        TOPIC = "/topics/testForMDT"; //topic must match with what the receiver subscribed to
-        NOTIFICATION_TITLE = "Test";
-        NOTIFICATION_MESSAGE = "Gregor";
+        TOPIC = "/topics/" + topic; //topic must match with what the receiver subscribed to
+        NOTIFICATION_TITLE = "Test values";
+        NOTIFICATION_MESSAGE = "von Gregor";
 
         JSONObject notification = new JSONObject();
         JSONObject notifcationBody = new JSONObject();
         try {
             notifcationBody.put("title", NOTIFICATION_TITLE);
             notifcationBody.put("message", NOTIFICATION_MESSAGE);
+            notifcationBody.put("level", level.getText().toString());
+            notifcationBody.put("delay", delay.getText().toString());
+            notifcationBody.put("duration", duration.getText().toString());
 
             notification.put("to", TOPIC);
             notification.put("data", notifcationBody);
         };
         MySingleton.getInstance(getApplicationContext()).addToRequestQueue(jsonObjectRequest);
     }
+
 }

fcm/app/src/main/java/com/example/fcm/MyFirebaseMessagingService.java

 import android.media.RingtoneManager;
 import android.net.Uri;
 import android.os.Build;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
 import android.util.Log;
 
 import androidx.annotation.RequiresApi;
         PendingIntent pendingIntent = PendingIntent.getActivity(this , 0, intent,
                 PendingIntent.FLAG_ONE_SHOT);
 
+        String title = remoteMessage.getData().get("title");
+        String message = remoteMessage.getData().get("message");
+        String level = remoteMessage.getData().get("level");
+        String delay = remoteMessage.getData().get("delay");
+        String duration = remoteMessage.getData().get("duration");
+
+        String wholeMessage = message + "," + level + "," + delay + "," + duration;
+
+        //MainActivity main = new Vibration();
+        assert level != null;
+        assert delay != null;
+        assert duration != null;
+        try {
+            triggerVibration(Integer.parseInt(level), Integer.parseInt(delay), Integer.parseInt(duration));
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
 
         Uri notificationSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
         NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, ADMIN_CHANNEL_ID)
                 .setSmallIcon(R.drawable.ic_stat_ic_notification)
-                .setContentTitle(remoteMessage.getData().get("title"))
-                .setContentText(remoteMessage.getData().get("message"))
+                .setContentTitle(title)
+                .setContentText(wholeMessage)
                 .setAutoCancel(true)
                 .setSound(notificationSoundUri)
                 .setContentIntent(pendingIntent);
         notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
     }
 
-    //public static void sendNotificationToUser(String user, final String message) {
-    //   Firebase ref = new Firebase(FIREBASE_URL);
-    //    final Firebase notifications = ref.child("notificationRequests");
-
-    //Map notification = new HashMap<>();
-    //    notification.put("username", user);
-    //    notification.put("message", message);
-
-    //   notifications.push().setValue(notification);
-    //}
-
     @RequiresApi(api = Build.VERSION_CODES.O)
     private void setupChannels(NotificationManager notificationManager){
         CharSequence adminChannelName = "New notification";
         }
     }
 
-
+    public void triggerVibration(int level, int delay, int duration) throws InterruptedException {
+        Log.i("Vibration","triggerVibration");
+        Log.i("Vibration","level:" + level);
+        Log.i("Vibration","delay:" + delay + "ms");
+        Log.i("Vibration","duration:" + duration + "ms");
+        Vibrator a = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            try {
+                Thread.sleep(delay);
+            } catch(InterruptedException ex){
+                Thread.currentThread().interrupt();
+            }
+            a.vibrate(VibrationEffect.createOneShot(duration, level));
+        } else {
+            //deprecated in API 26
+            a.vibrate(2000);
+        }
+    }
 
 }

fcm/app/src/main/java/com/example/fcm/Vibration.java

+package com.example.fcm;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
+import android.util.Log;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+
+public class Vibration extends AppCompatActivity {
+
+    public void triggerVibration(int level, int delay, int duration) throws InterruptedException {
+        Log.i("Vibration","triggerVibration");
+        Log.i("Vibration","level:" + level);
+        Log.i("Vibration","delay:" + delay);
+        Log.i("Vibration","duration:" + duration);
+        Vibrator a = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            try {
+                Thread.sleep(delay);
+            } catch(InterruptedException ex){
+                Thread.currentThread().interrupt();
+            }
+            a.vibrate(VibrationEffect.createOneShot(duration, level));
+        } else {
+            //deprecated in API 26
+            a.vibrate(2000);
+        }
+    }
+
+
+}

fcm/app/src/main/res/layout/activity_main.xml

     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context=".MainActivity">
 
-    <TextView
-        android:id="@+id/informationTextView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal"
-        android:gravity="center_horizontal"
-        android:text="@string/quickstart_message" />
-
     <Button
         android:id="@+id/subscribeButton"
         android:layout_width="@dimen/standard_field_width"
         android:layout_gravity="center_horizontal"
         android:text="@string/log_token" />
 
+    <EditText
+        android:id="@+id/level"
+        android:layout_width="200dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:hint="Level (1-255)"
+    />
+
+    <EditText
+        android:id="@+id/delay"
+        android:layout_width="200dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:hint="Delay (ms)"
+        />
+
+    <EditText
+        android:id="@+id/duration"
+        android:layout_width="200dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:hint="Duration (ms)"
+        />
+
     <Button
         android:id="@+id/sendButton"
         android:layout_width="@dimen/standard_field_width"
         android:layout_height="wrap_content"
         android:layout_gravity="center_horizontal"
-        android:text="Send message" />
+        android:text="Send Command" />
 
 
 </LinearLayout>

fcm/app/src/main/res/values/strings.xml

     <string name="quickstart_message">Quickstart message</string>
     <string name="log_token">Log token</string>
     <string name="subscribe_to_weather">Subscribe</string>
-    <string name="msg_subscribed">Subscribed to testForMDT topic</string>
+    <string name="msg_subscribed">Subscribed to vibration topic</string>
     <string name="msg_token_fmt" translatable="false">InstanceID Token: %s</string>
 
     <string name="default_notification_channel_id" translatable="false">fcm_default_channel</string>
         It should describe the category of notifications that will be sent through this channel
      -->
     <!-- [START fcm_default_icon_string] -->
-    <string name="default_notification_channel_name" translatable="true">testForMDT</string>
+    <string name="default_notification_channel_name" translatable="true">vibration</string>
     <!-- [END fcm_default_icon_string] -->
-    <string name="msg_subscribe_failed">Failed to subscribe to testForMDT topic</string>
+    <string name="msg_subscribe_failed">Failed to subscribe to vibration topic</string>
     <string name="fcm_message">FCM Message</string>
     <string name="subscribe">Subscribe</string>
 </resources>