private void initOneSignal() {
if (Config.PUSH_ENABLED) {

OneSignal.setLogLevel(OneSignal.LOG_LEVEL.VERBOSE, OneSignal.LOG_LEVEL.NONE);

        // OneSignal Initialization
        OneSignal.initWithContext(this);
        OneSignal.setAppId(ONESIGNAL_APP_ID);
        if (Config.PUSH_ENABLED) {
OneSignal.setLogLevel(OneSignal.LOG_LEVEL.VERBOSE, OneSignal.LOG_LEVEL.NONE);
            OneSignal.initWithContext(this);
            OneSignal.setAppId(ONESIGNAL_APP_ID);

            OneSignal.setNotificationOpenedHandler(
new OneSignal.OSNotificationOpenedHandler() {
@Override
                        public void notificationOpened(OSNotificationOpenedResult result) {
// Capture Launch URL (App URL) here

                            JSONObject data = result.getNotification().getAdditionalData();

                            String notification_topic;
                            if (data != null) {
notification_topic = data.optString("trigger", null);
                                if (notification_topic != null) {
OneSignal.addTrigger("trigger", notification_topic);
                                }
}


String launchUrl = result.getNotification().getLaunchURL();
                            String url = null;
                            if (data != null && data.has("url")) {
try {
url = data.getString("url");
                                } catch (JSONException e) {
e.printStackTrace();
                                }
}

Intent intent = new Intent(context, MainActivity.class);
                            intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK);
                            intent.putExtra("openURL", launchUrl);
                            intent.putExtra("ONESIGNAL_URL", url);

                            Log.i("OneSignalExample", "openURL = " + launchUrl);
                            startActivity(intent);
                        }
});
        }
}
}