SendAlarmOnceTester.java

package com.pinecone.technology.mcommerce.learning.android.chapter04.alarm;

import java.util.Calendar;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;

import com.pinecone.technology.mcommerce.learning.android.chapter04.broadcastReceiver.TestReceiver;

public class SendAlarmOnceTester extends BaseTester {
	private static String tag = "SendAlarmOnceTester";

	SendAlarmOnceTester(Context ctx, IReportBack target) {
		super(ctx, target);
	}

	/*
	 * An alarm can invoke a broadcast request at a specified time. The name of
	 * the broadcast receiver is explicitly specified in the intent.
	 */
	public void sendAlarmOnce() {
		// Get the instance in time that is
		// 30 secs from now.
		Calendar cal = Utils.getTimeAfterInSecs(30);

		// If you want to point to 11:00 hours today.
		// Calendar cal = Utils.getTodayAt(11);

		// Print to the debug view that we are
		// scheduling at a specific time
		String s = Utils.getDateTimeString(cal);
		mReportTo.reportBack(tag, "Schdeduling alarm at: " + s);

		// Get an intent to invoke
		// TestReceiver class
		Intent intent = new Intent(mContext, TestReceiver.class);
		intent.putExtra("message", "Single Shot Alarm");

		PendingIntent pi = PendingIntent.getBroadcast(mContext, // context
				1, // request id, used for disambiguating this intent
				intent, // intent to be delivered
				PendingIntent.FLAG_ONE_SHOT); // pending intent flags
		// Schedule the alarm!
		AlarmManager am = (AlarmManager) mContext
				.getSystemService(Context.ALARM_SERVICE);

		am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pi);
	}
}