How to trigger a notification from your Android App? - Complete source code

This video shows the steps to write your own notification in your Android App.

In this video it uses a button to trigger the notification but in actual or commercial App various events can be used to trigger the notification.

I hope you like this video. For any questions, suggestions or appreciation please contact us at: https://programmerworld.co/contact/ or email at: [email protected]

Complete source code and other details can be found in the below link:
https://programmerworld.co/android/how-to-trigger-a-notification-from-your-android-app-complete-source-code/


However, the main Java code is copied below also for reference:

package com.programmerworld.mynotificationapp;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

private String CHANNEL_ID = "My Notification";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

public void buttonSetNotification(View view){
Intent intentNotification = new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intentNotification, PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder builderNotificationCompat = new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentIntent(pendingIntent)
.setContentTitle("My Notification")
.setContentText("My Notification text here.")
.setSmallIcon(android.R.drawable.btn_star_big_on);

NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, "This is my first Notification", NotificationManager.IMPORTANCE_DEFAULT);
notificationManager.createNotificationChannel(notificationChannel);
notificationManager.notify(0,builderNotificationCompat.build());
}
}



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