I don't understand your answer.
I'm talking about before I try to load the ad, because when I try to load the ad, it's too late as it takes time to reach the server and then tell me I don't get an ad from what I've provided.
Calling getAdSize() doesn't make sense, because the function I talked about is AdSize.getInlineAdaptiveBannerAdSize , which given the dimensions of the View that will contain the ad, should prepare me already AdSize instance.
I want to know if there is a way to detect what will happen with it, before starting to load the ad, to avoid useless loading as it will probably always fail.
As for relying on the fixed sizes, what I meant is that if the dimensions are at least as large as one of them (and maybe I can add another restriction, such as 75% of the area taken), I can assume that it will most probably get me an ad , and not fail because of dimensions that no ad supports.
I hope it's clear now what I'm asking about.