title: AlarmManager does not work when app is force closed
body: <p>Documentation for <code>AlarmManager</code> startes that </p>
  
  <blockquote>
    <p>Note: The Alarm Manager is intended for cases where you want to have your application code run at a specific time, even if your application is not currently running. For normal timing operations (ticks, timeouts, etc) it is easier and much more efficient to use Handler.</p>
  </blockquote>
  
  <p>However, once my application is closed (force close from task manager) my alarm does not work and the <code>OnReceive</code> method is never called inside the broadcast receiver. 
  I am targeting 4.x.</p>
  
  <p>What's happening?</p>