title: How to empty a gridview on Android?
body: <p>I am developping a launcher with two different profiles : one is the main one the other is secondary. If I go on the play store and then come back with the "back" button, I land on my main profile, but there, the icons of my gridview (displayed through an adapter) appear in double (if I install two apps from the play store, coming back with the back button will give me icons 3 times and so on).</p>
  
  <p>If I restart my main activity in the onresume method, things go fine and my icons aren't doubled, or tripled or whaterver. 
  But I don't want to restart the activity, I only want to empty my gridview.</p>
  
  <pre><code>if((admin == true) ){
          Intent intent = getIntent();
          finish();
          startActivity(intent);}
  </code></pre>