I want to make sure that interstitial ads on Android, using the Android AdMob SDK, can be closed. After some research, it seems to me that this is not possible due to the ad being a separate activity. What I want to do is close the ad after 5 seconds. Can someone assure me that closing an interstitial ad is impossible or if there's a hack?
It's going to be a very late answer but I faced similar issue. A trick can be to call the back button event programmatically.
this.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_BACK));
As whenever you press on back button the interstitial ad is closed so firing the back button event will eventually close the interstitial ad. Rest depends on the requirement.