Display Notification

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
int notificationID = 1;
displayNotification("text_to_show");
protected void displayNotification(String text_to_show){
//Change MyActivity.class with your activity.class to receive the action of notification
Intent i = new Intent(this, MyActivity.class);
i.putExtra("notificationID", notificationID);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, i, 0);
NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
CharSequence ticker ="Text on Status Bar";
CharSequence contentTitle = "Title text";
CharSequence contentText = "Menssage to show";
Notification noti = new NotificationCompat.Builder(this)
.setContentIntent(pendingIntent)
.setTicker(ticker)
.setContentTitle(contentTitle)
.setContentText(contentText)
.setSmallIcon(R.drawable.ic_launcher)
.addAction(R.drawable.ic_launcher, ticker, pendingIntent)
.setVibrate(new long[] {100, 250, 100, 500})
.build();
nm.notify(notificationID, noti);
//Add permission to vibrate in file AndroidManifest.xml
//<uses-permission android:name="android.permission.VIBRATE" />
}
// Cancel Notification on activity itself
NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
try {
nm.cancel(getIntent().getExtras().getInt("notificationID"));
}catch (java.lang.RuntimeException e){
}