title: Best way to implement Timer in Android?
body: <p>I doing some math game, and I have 25 question for user to answer. So, I want to mesaure how much time that user needed for solving that?</p>
  
  <p>So I need something like Timer, stopwatch with ability to pause time when user click on Back button.</p>
  
  <p>I saw few implementations with Chronometer, is that good for this task?</p>