HelloIntentService.java

package com.google.mcommerce.sample.android.chapter06.service;

import android.app.IntentService;
import android.content.Intent;
import android.widget.Toast;

public class HelloIntentService extends IntentService {

	/**
	 * A constructor is required, and must call the super IntentService(String)
	 * constructor with a name for the worker thread.
	 */
	public HelloIntentService() {
		super("HelloIntentService");
	}

	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {
		Toast.makeText(this, "My intent service starting !", Toast.LENGTH_SHORT)
				.show();
		return super.onStartCommand(intent, flags, startId);
	}

	/**
	 * The IntentService calls this method from the default worker thread with
	 * the intent that started the service. When this method returns,
	 * IntentService stops the service, as appropriate.
	 */
	@Override
	protected void onHandleIntent(Intent intent) {
		// Normally we would do some work here, like download a file.
		// For our sample, we just sleep for 5 seconds.
		long endTime = System.currentTimeMillis() + 5 * 1000;
		while (System.currentTimeMillis() < endTime) {
			synchronized (this) {
				try {
					wait(endTime - System.currentTimeMillis());
				} catch (Exception e) {
				}
			}
		}
	}
}