title: Auto complete not working in android studio
body: <p>I am a starter in android development and I started off with <code>eclipse</code>.. But it started giving lot of problems. So I switched to <code>android studio</code>. Got it set up successfully and for couple of weeks it was ok. Now, for some reason, the auto complete feature is not working. It is not giving any choices while typing, so I tried <kbd>ctrl</kbd>-<kbd>enter</kbd>. It says no suggestions. I browsed through similar queries and tried the following.  </p>
  
  <ol>
  <li>Disabling  Power Save in File menu.</li>
  <li>Checking basic complete and smart type completion in IDE settings (editor)</li>
  <li>Invalidate caches and restart. </li>
  </ol>
  
  <p>But non of these seems to work.</p>