title: Measure Android app startup time
body: <p>What is the most precise way to measure startup time of an Android app?</p>
  
  <p>By startup time I mean the difference between 2. and 3. :</p>
  
  <ol>
  <li>The app process is not running</li>
  <li>User clicks on app icon in the launcher</li>
  <li>Main Activity is fully initialized</li>
  </ol>
  
  <p>So I basically need to somehow get time elapsed since JVM started and log it.</p>