A note on ad size and mediating smart banners

Smart banners are a handy thing for publishers. You can drop an AdMob smart banner into a layout or storyboard, and it'll stretch or squeeze itself at runtime until it's just the right size for the device, then request an ad to match. They're a great feature with all the extra work hidden under the hood. If you're building an Android mediation adapter or custom event, though, things aren't quite as simple - after all, you're under that hood, too!...