title: how can I know whether a user has watched my full rewarded video ad or skip ad in android?
body: <p>I am using Rewarded interstitial ads in my app. 
  Is there any method to know whether any user has watched a complete rewarded video or not in my rewarded video ad?</p>
  
  <p>I need to place a rewarded video in my app, and I want to know whether any user has watched the full video or not? How can I know that?</p>