title: Android - Proper way of using AsyncTasks?
body: <p>What is the proper way of using asynctasks?
  Let's say a user enters an activity, and asynctask starts, and while the asynctask is running the user decides to navigate to another page.</p>
  
  <ul>
  <li>What's gonna happen to anynctask? is it gonna run until it's done?</li>
  <li>Am I responsible for stopping this asynctask somehow?</li>
  </ul>