How can I add button on notification FCM Android

Question

How I add button on notification FCM and how I add click event on that buttons. I need two buttons on notification

How I add click event on button on notification FCM Android like this image Dismiss and Answer

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "FCM Service";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        // TODO: Handle FCM messages here.
        Log.d(TAG, "From: " + remoteMessage.getFrom());
        Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
        createNotification(remoteMessage.getNotification().getBody());
    }

    private void createNotification( String messageBody) {
        Intent intent = new Intent( this , ResultActivity. class );
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent resultIntent = PendingIntent.getActivity( this , 0, intent, PendingIntent.FLAG_ONE_SHOT);

        Intent intent1 = new Intent(this, ResultActivity.class);
        PendingIntent resultIntents = PendingIntent.getActivity( this , 0, intent1, PendingIntent.FLAG_ONE_SHOT);

        Uri notificationSoundURI = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder mNotificationBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle("Android Tutorial Point FCM Tutorial")
                .setContentText(messageBody)
                .setDefaults(Notification.DEFAULT_ALL)
                .setPriority(NotificationCompat.PRIORITY_HIGH)
                .setAutoCancel(true)
                .addAction(R.drawable.switches, "Hello", resultIntents)
                .addAction(R.drawable.call, "Call", resultIntent)
                .setSound(notificationSoundURI)
                .setContentIntent(resultIntent);
        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, mNotificationBuilder.build());
    }
}

public class FirebaseIDService extends FirebaseInstanceIdService {
    private static final String TAG = "FirebaseIDService";

    @Override
    public void onTokenRefresh() {
        // Get updated InstanceID token.
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        Log.d(TAG, "Refreshed token: " + refreshedToken);

        // TODO: Implement this method to send any registration to your app's servers.
        sendRegistrationToServer(refreshedToken);
    }

    private void sendRegistrationToServer(String token) {
        // Add custom implementation, as needed.
    }
}

Answer 1

    NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
            // Set Icon
            .setSmallIcon(R.drawable.icon)
            // Set Ticker Message
            .setTicker("notification received")
            // Dismiss Notification
            .setAutoCancel(true)
            //.setWhen(0)
            // Set PendingIntent into Notification
            .setContentIntent(pIntent)
            // Set RemoteViews into Notification
            // .setContent(remoteViews)
            // Set Title
            .setContentTitle("App")
            // show big notification hint when app is open
            //.setPriority(Notification.PRIORITY_MAX)
            // Set Text
             .setContentText(messageBody)
            // Set Sound
            .setSound(defaultSoundUri)
            // notification button 1
            .addAction(viewAction)
            // notification button 2
            .addAction(rejectAction)
            // notification button 3
            .addAction(approveAction);

Here I have added 3 buttons as ".addAction". We can give individual actions for every button it is as follows

    NotificationCompat.Action viewAction = new NotificationCompat.Action.Builder(R.drawable.view_icon, "View", viewIntentPending).build();

Answer 2

From API level 4.1 you can add action buttons to notification. To see the basics about notification check the android doc and for some more help you can check this so answer and this tutorial

//Here in intent your will need provide the class which you want to open on button click in notification
Intent intent = new Intent(this, NotificationReceiverActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent, 0);

// Build notification
// Actions are just fake
Notification noti = new Notification.Builder(this)
        .setContentTitle("New mail from " + "test@gmail.com")
        .setContentText("Subject").setSmallIcon(R.drawable.icon)
        .setContentIntent(pIntent)
        .addAction(R.drawable.icon, "Call", pIntent)
        .addAction(R.drawable.icon, "More", pIntent)
        .addAction(R.drawable.icon, "And more", pIntent).build();