title: What happens when android app is "killed"
body: <p>I have an app which has real time push notifications enabled. So my query is whenever any user tries to <strong>kill</strong> my app using "Advance Task Killer", my app goes into undefined state.</p>
  
  <p><strong>Undefined State</strong>: What i mean is my app doesn't gets completely terminated. The screen has data in a inconsistent state.</p>
  
  <p>So is there way where i can take a user to login screen back whenever an app is killed. So that user wont see any undefined state.</p>
  
  <p>Also want to know what happens to my app states after it gets killed so that i can fix the issue.</p>
  
  <p>Help Appreciated.</p>