title: How to restart a Service after getting Killed by apps like "Advanced Task Killer"?
body: <p>I have a public class that 'extends Service' and this service is launched from an activity using startService(...). But after I use <a href="https://play.google.com/store/apps/details?id=com.rechild.advancedtaskkiller" rel="noreferrer">Advanced Task Killer</a>, the service is killed and never restarted again.</p>
  
  <p>I noticed that some apps like the <a href="https://play.google.com/store/apps/details?id=com.facebook.orca" rel="noreferrer">Facebook Messenger Android App</a> restart automatically even after killing them from <a href="https://play.google.com/store/apps/details?id=com.rechild.advancedtaskkiller" rel="noreferrer">Advanced Task Killer</a> ... how are the facebook/twitter apps doing it??</p>
  
  <p><img src="https://i.stack.imgur.com/yQsFn.png" alt="enter image description here"></p>