StatusBar Notification in Android

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="96dp"

        android:text="Send Notification" />

    <Button

        android:id="@+id/button2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignRight="@+id/button1"

        android:layout_below="@+id/button1"

        android:layout_marginTop="81dp"

        android:text="Stop Notification" />

</RelativeLayout>

MainActivity.java:

package com.statusbarnotification.ram;

import android.app.Activity;

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class MainActivity extends Activity {

NotificationManager notificationManager;

Notification notification;

int NOTIFICATION_ID = 1;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button sendNotification = (Button) findViewById(R.id.button1);

Button stopNotification = (Button) findViewById(R.id.button2);

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

int icon = R.drawable.player;

String tickerText = "hi you have notification";

long when = System.currentTimeMillis();

notification = new Notification(icon, tickerText, when);

Intent in = new Intent(getApplicationContext(), MainActivity.class);

PendingIntent pendingIntent = PendingIntent.getActivity(

getApplicationContext(), 0, in, 0);

String contentTitle = "Notification title";

String contentText = "Notification description";

notification.setLatestEventInfo(getApplicationContext(), contentTitle,

contentText, pendingIntent);

sendNotification.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

notificationManager.notify(NOTIFICATION_ID, notification);

}

});

stopNotification.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

notificationManager.cancel(NOTIFICATION_ID);

}

});

}

}