title: Android kills broadcast receivers on system low memory
body: <p>My app has a broadcast receiver which listens for incoming sms but there is no persistent service. </p>
  
  <p>I think the broadcast receiver is killed when the system is low on memory like when app is forced stop from android setting. I have noticed it after one day on my own phone.</p>
  
  <p>Does android kill broadcast receivers on system low memory?</p>
  
  <p>Is there anyway to enable them again after this? </p>