MyScheduleReceiver.java

package com.dotcool.reader.service;

import java.util.Calendar;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.util.Log;

import com.dotcool.reader.Constants;

public class MyScheduleReceiver extends BroadcastReceiver {

	@Override
	public void onReceive(Context context, Intent intent) {
		reschedule(context);
	}

	public static void reschedule(Context context) {
		SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
		String updatesIntervalStr = preferences.getString(Constants.PREF_UPDATE_INTERVAL, "0");
		int updatesInterval = Integer.parseInt(updatesIntervalStr);

		reschedule(context, updatesInterval);
	}

	public static void reschedule(Context context, int updatesInterval) {
		long repeatTime = 0;
		switch (updatesInterval) {
		case 1:
			repeatTime = AlarmManager.INTERVAL_FIFTEEN_MINUTES;
			break;
		case 2:
			repeatTime = AlarmManager.INTERVAL_HALF_HOUR;
			break;
		case 3:
			repeatTime = AlarmManager.INTERVAL_HOUR;
			break;
		case 4:
			repeatTime = AlarmManager.INTERVAL_HALF_DAY;
			break;
		case 5:
			repeatTime = AlarmManager.INTERVAL_DAY;
			break;
		default:
			break;
		}

		AlarmManager service = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
		Intent intent = new Intent(context, MyStartServiceReceiver.class);
		PendingIntent pending = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);

		if (repeatTime > 0) {
			Log.d(UpdateService.TAG, "Setting up schedule");

			// Start repeatTime seconds after boot completed
			Calendar cal = Calendar.getInstance();
			cal.add(Calendar.SECOND, 60);

			// InexactRepeating allows Android to optimize the energy consumption
			Log.i(UpdateService.TAG, "Repeating in: " + repeatTime);
			// service.setInexactRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), repeatTime, pending);
			service.set(AlarmManager.RTC, cal.getTimeInMillis() + repeatTime, pending);
		}
		else {
			Log.i(UpdateService.TAG, "Canceling Schedule");
			service.cancel(pending);
		}
	}
}