Alarm manager don't work after some time

Question

This is my code. It works correctly, but after some time (about 1 hour) it doesn\'t work. Whats wrong? Thanks in advance.

Answer 1

public void scheduleAlarm(View V)
{
    // time at which alarm will be scheduled here alarm is scheduled at 1 day from current time, 
    // we fetch  the current time in milliseconds and added 1 day time
    // i.e. 24*60*60*1000= 86,400,000   milliseconds in a day       
    Long time = new GregorianCalendar().getTimeInMillis()+24*60*60*1000;

    // create an Intent and set the class which will execute when Alarm triggers, here we have
    // given AlarmReciever in the Intent, the onRecieve() method of this class will execute when

    Intent intentAlarm = new Intent(this, AlarmReciever.class);

    //Get the Alarm Service
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    //set the alarm for particular time
    alarmManager.set(AlarmManager.RTC_WAKEUP,time, PendingIntent.getBroadcast(this,1,  intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT));
    Toast.makeText(this, "Alarm Scheduled for Tommrrow", Toast.LENGTH_LONG).show();

}_

AlarmReciever Class

public class AlarmReciever extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        // TODO Auto-generated method stub                                 
        // Your Code     When Alarm willl trigger                             
    }      
}