BuildingNotification.java

private static final int WATER_REMINDER_NOTIFICATION_ID = 1138;
/**
 * This pending intent id is used to uniquely reference the pending intent
 */
private static final int WATER_REMINDER_PENDING_INTENT_ID = 3417;
private static final int ACTION_DRINK_PENDING_INTENT_ID = 1;
private static final int ACTION_IGNORE_PENDING_INTENT_ID = 14;

public static void remindUserBecauseCharging(Context context) {

	NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context)
			.setColor(ContextCompat.getColor(context, R.color.colorPrimary))
			.setSmallIcon(R.drawable.ic_drink_notification)
			.setLargeIcon(largeIcon(context))
			.setContentTitle(context.getString(R.string.charging_reminder_notification_title))
			.setContentText(context.getString(R.string.charging_reminder_notification_body))
			.setStyle(new NotificationCompat.BigTextStyle().bigText(
					context.getString(R.string.charging_reminder_notification_body)))
			.setDefaults(Notification.DEFAULT_VIBRATE)
			.setContentIntent(contentIntent(context))
			.addAction(drinkWaterAction(context))
			.addAction(ignoreReminderAction(context))
			.setAutoCancel(true);

	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
		notificationBuilder.setPriority(Notification.PRIORITY_HIGH);
	}


	NotificationManager notificationManager = (NotificationManager)
			context.getSystemService(Context.NOTIFICATION_SERVICE);

	/* WATER_REMINDER_NOTIFICATION_ID allows you to update or cancel the notification later on */
	notificationManager.notify(WATER_REMINDER_NOTIFICATION_ID, notificationBuilder.build());
}
private static Action ignoreReminderAction(Context context) {
	Intent ignoreReminderIntent = new Intent(context, WaterReminderIntentService.class);
	ignoreReminderIntent.setAction(ReminderTasks.ACTION_DISMISS_NOTIFICATION);
	PendingIntent ignoreReminderPendingIntent = PendingIntent.getService(
			context,
			ACTION_IGNORE_PENDING_INTENT_ID,
			ignoreReminderIntent,
			PendingIntent.FLAG_UPDATE_CURRENT);
	Action ignoreReminderAction = new Action(R.drawable.ic_cancel_black_24px,
			"No, thanks.",
			ignoreReminderPendingIntent);
	return ignoreReminderAction;
}

private static Action drinkWaterAction(Context context) {
	Intent incrementWaterCountIntent = new Intent(context, WaterReminderIntentService.class);
	incrementWaterCountIntent.setAction(ReminderTasks.ACTION_INCREMENT_WATER_COUNT);
	PendingIntent incrementWaterPendingIntent = PendingIntent.getService(
			context,
			ACTION_DRINK_PENDING_INTENT_ID,
			incrementWaterCountIntent,
			PendingIntent.FLAG_CANCEL_CURRENT);
	Action drinkWaterAction = new Action(R.drawable.ic_local_drink_black_24px,
			"I did it!",
			incrementWaterPendingIntent);
	return drinkWaterAction;
}

private static PendingIntent contentIntent(Context context) {
	Intent startActivityIntent = new Intent(context, MainActivity.class);
	return PendingIntent.getActivity(
			context,
			WATER_REMINDER_PENDING_INTENT_ID,
			startActivityIntent,
			PendingIntent.FLAG_UPDATE_CURRENT);
}

private static Bitmap largeIcon(Context context) {
	Resources res = context.getResources();
	Bitmap largeIcon = BitmapFactory.decodeResource(res, R.drawable.ic_local_drink_black_24px);
	return largeIcon;
}