Tutorial

The following assumes that you have already basic knowledge in Android development. Please check the Android development tutorial to learn the basics.

A PendingIntent is a token that you give to another application (e.g. Notification Manager, Alarm Manager or other 3rd party applications), which allows this other application to use the permissions of your application to execute a predefined piece of code.

To perform a broadcast via a pending intent so get a PendingIntent via PendingIntent.getBroadcast(). To perform an activity via an pending intent you receive the activity via PendingIntent.getActivity().

Create a new project "de.vogella.android.notificationmanager" with the Activity "CreateNotification". Create the following layout "result.xml".

			
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is the result activity opened from the notification" >
    </TextView>

</LinearLayout>
		

Change "main.xml" to the following.

			
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:onClick="createNotification"
        android:text="Create Notification" >
    </Button>

</LinearLayout>
		

Create a new activity "NotificationReceiver" with the following coding. Don't forget to register the activity in the "AndroidManfest.mf".

			
package de.vogella.android.notificationmanager;

import android.app.Activity;
import android.os.Bundle;

public class NotificationReceiver extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.result);
	}
}

		

Change the activity "CreateNotification" to the following.

			
package de.vogella.android.notificationmanager;

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

public class CreateNotification extends Activity {
	
/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

	}

	public void createNotification(View view) {
		NotificationManager notificationManager = (NotificationManager) 
					getSystemService(NOTIFICATION_SERVICE);
		Notification notification = new Notification(R.drawable.icon,
				"A new notification", System.currentTimeMillis());
		// Hide the notification after its selected
		notification.flags |= Notification.FLAG_AUTO_CANCEL;

		Intent intent = new Intent(this, NotificationReceiver.class);
		PendingIntent activity = PendingIntent.getActivity(this, 0, intent, 0);
		notification.setLatestEventInfo(this, "This is the title",
				"This is the text", activity);
		notification.number += 1;
		notificationManager.notify(0, notification);

	}
}

		

Run your application and press the button. A new notification is created. If you select it your second activity will be displayed.

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