title: How to use in-app billing to permanently hide adds ??? Android
body: <p>I've just implemented ads into my app, and I want to add an option for user to permanently hide ads using in app billing ...</p>
  
  <p>How do I do it?</p>
  
  <p>Thanks in advance :D</p>
  
  <p>PS I have implemented ads using an xml file</p>