title: How to remove ads from an Android application using an Unlocker Application
body: <p>I have an ads supported application in the Android market.
  I'm willing to release another application that will cost money and once the user installed it, will remove the ads from the free application ("Unlocker" or "Key" application).</p>
  
  <p>For it to work, I'm checking if the paid application is installed using PackageManager.getPackageInfo() and if it is, I'm setting the visibility of all the ads View to View.Gone.</p>
  
  <p>Is there any chance that the ads View's visibility will change again to Visible by the ads service itself? I ask because normally, when there are no ads to show the ads visibility is set internally to View.Gone and restored again when there are ads to show.</p>
  
  <p>Any other suggestion on how to remove the ads views from my application if the user installed the "Unlocker" application?</p>
  
  <p>Thank you very much.</p>