问题
I have multiple activities in my application and so i have multiple banners and interstitial Ads, ** so should I keep **a single publisherID for all the banners and interstitial ads or should I make a different publisher ID for each ad in the application ?
回答1:
In the new Admob dashboard publisherId relates to you (your account) and AdUnitId relates to ad spots that you want filled. I'll out my answer in terms of the new dashboard. NB As of Jan-2014 I think the dashboard has been rolled out most places, but there may be some stillw waiting such as India.
I would suggest that you definitely have different adUnitIds for your banner ads versus your interstitials. Whether you want separate adUnits for different Activities within your app is up to you. If you want to track revenue and fill for each of those spots individually then yes.
But unless those spots are radically different in terms of content and user base then I would suggest you go with the simple route and have a single adUnitId per app (two if you are using both banners and interstitials).
来源：https://stackoverflow.com/questions/20921008/should-i-make-different-id-for-each-banner-and-interstitial-ad-in-admob