LED Notification Android Source Code Example

This is a simple android project where you can see LED notification with different colors in the android mobile screen. Please find below the source code example. No special permissions are required for this project. Just you can run with default manifest and layout. Before seeing the demo through android IDE, just lock your phone screen to see the LED illumination.

NotificationLED.java

public class NotificationLED extends Activity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

  NotificationManager notif = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

  for (int i = 0; i < 8; i++) {
   notif.cancel(1); // clear all previous notification 
   final Notification notification = new Notification();
   if (i == 0){
    notification.ledARGB = Color.MAGENTA;
   }else if (i == 1){
    notification.ledARGB = Color.BLUE;
   }else if (i == 2){
    notification.ledARGB = Color.CYAN;
   }else if (i == 3){
    notification.ledARGB = Color.GRAY;
   }else if (i == 4){
    notification.ledARGB = Color.GREEN;
   }else if (i == 5){
    notification.ledARGB = Color.RED;
   }else if (i == 6){
    notification.ledARGB = Color.WHITE;
   }else if (i == 7){
    notification.ledARGB = Color.YELLOW;
   }
   notification.ledOnMS = 1000;
   notification.flags |= Notification.FLAG_SHOW_LIGHTS;
   notif.notify(1, notification);
   try {
    Thread.sleep(2000);
   } catch (InterruptedException e) {    
    e.printStackTrace();
   }
  }

 }
}