Questions on MoPub features

  1. Does moPub not show real ads when the app build is debug? I already put in the correct MoPub id but it still does not show ads. I already integrated it with AdMob
  2. Is it possible to programmatically set the ad’s width to match_parent rather than the pre-defined 320x50?
    e.g. full screen ads should not need be separated into phone and tablet ad units. the ad network provider can provide the right size video ad, right?

please share your thoughts