Customize FCM Service

Custom KonyFCMService

package com.voltmx.push.custom;

import com.konylabs.fcm.KonyFCMService;
public class CustomKonyFCMService extends KonyFCMService {

    //This method is called for new push message arrival when app is not running in   
    // foreground. (Note: this will not be called is if GCM v3.0 payload is enabled)

    @
    Override public void showPushMessageNotification(Context context, Map & lt; String, String & gt; data) {
        //custom implementation goes here


        String pkgName = context.getPackageName();
        long when = System.currentTimeMillis();
        //pick desired icon as notification icon
        int icon = context.getResources().getIdentifier("icon",
            "drawable", pkgName);
        String[] bigViewLines = new String[6];
        String key = null;
        String desc = null;
        String randomKey = null;
        //taking some random key from payload bundle
        Set & lt;
        String & gt;
        keySet = data.keySet();
        if (keySet != null & amp; & amp; keySet.isEmpty() == false) {
            Iterator & lt;
            String & gt;
            it = keySet.iterator();
            int i = 0;
            while (it.hasNext() & amp; & amp; i & lt; 6) {
                key = it.next();
                desc = data.get(randomKey);
                bigViewLines[i] = key + " : " + desc;
                ++i;
            }
        }

        /* Using utility method 'createNotificationPendingIntent()'
                                   to get the notification pending intent. This utility method
                                   creates the pending intent as expected by the Volt MX Iris Android
                                   platform
                                */
        PendingIntent contentIntent = createNotificationPendingIntent(context,
            data, 0);


        /* Creation of BIG-VIEW notification  */
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);

        if (VoltMXMain.mSDKVersion & gt; = 26) {

            NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            String channelId = "channel id";
            String channelName = "channel name";
            String channelDescription = "channel description";
            if (mNotificationManager.getNotificationChannel(channelId) == null) {
                NotificationChannel channel = new NotificationChannel(channelId,
                    channelName,
                    NotificationManager.IMPORTANCE_DEFAULT);
                channel.setDescription(
                    channelDescription);
                mNotificationManager.createNotificationChannel(channel);
            }
            mBuilder.setChannelId(channelId);

        }

        mBuilder.setContentTitle("New push Message");
        mBuilder.setContentText("You've received new push message.");
        mBuilder.setTicker("New Push Message Alert!");
        mBuilder.setSmallIcon(R.drawable.icon);
        Bitmap icon_2 = BitmapFactory.decodeResource(this.getResources(),
            R.drawable.icon);
        mBuilder.setLargeIcon(icon_2);
        /*
                                Increase notification number every time a new notification
                                arrives
                                */
        mBuilder.setNumber(5);
        /* Add Big View Specific Configuration */
        NotificationCompat.InboxStyle inboxStyle =
            new NotificationCompat.InboxStyle();
        // Sets a title for the Inbox style big view
        inboxStyle.setBigContentTitle("Push Message Details:");
        // Moves events into the big view
        for (int i = 0; i & lt; bigViewLines.length; i++) {
            inboxStyle.addLine(bigViewLines[i]);
        }
        inboxStyle.setSummaryText("Click to Launch");
        mBuilder.setStyle(inboxStyle);
        mBuilder.setContentIntent(contentIntent);
        mBuilder.addAction(R.drawable.marker, "Launch",
            contentIntent);
        mBuilder.addAction(R.drawable.cancel, "Cancel",
            contentIntent);
        NotificationManager mNotificationManager = (NotificationManager)
        getSystemService(Context.NOTIFICATION_SERVICE);

        /*
                                notificationID allows you to update the notification later on.
                                */
        mNotificationManager.notify(1, mBuilder.build());

    }

}