How to restart Alarm after phone Reboot?

Question

In my project I'm using AlarmManager to start a Service once a day. It's working fine. But it stops working when the phone reboot are restarts. I searched through web and they suggested to start a BroadcastReceiver to listen RECEIVE_BOOT_COMPLETED action and restart the Alarm. I don't know how to do that. Please suggest me an easy way to reset the alarm. I've posted my code here.

My Code to start Alarm

Intent start_alarm=new Intent(MainPage.this,MailService.class);
    PendingIntent pi=PendingIntent.getService(MainPage.this, 100, start_alarm, 0);
    AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);

    Calendar calendar = Calendar.getInstance();

    calendar.add(Calendar.DATE,1);
    calendar.set(Calendar.HOUR_OF_DAY, 12);
    calendar.set(Calendar.MINUTE, 30);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.AM_PM, Calendar.AM);

    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),1000*60*60*24,pi);

My AlarmService

@Override
public void onStart(Intent intent,int startId){
    super.onStart(intent,startId);

       //* My Code for sending Mail *//

   }

Manifest Registeration of Service

<service android:name=".MailService"/>

Answer 1

Simply create a broadcast receiver and register it on manifest with intent action_reboot, then start the alarm in onReceive method

this is how to register receiver

       <receiver android:name="com.packagename.RebootReceiver">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>

this is the receiver

public class RebootReceiver extends BroadcastReceiver 
 {
public void onReceive(Context arg0, Intent arg1) 
{

    //start your alarm
   }
 }