WRONG! Do not do anything with the AAR except of copying it to the additional libs folder and reference it with #additionaljar:aarfilename.aar
Solved. Don Manfred, thank you. I just got it working. I was misreading the steps, but I'm left working on all three platforms. Simply copy the B4XGifView library, which is the same for B4i, B4j and B4A, and in the same folder of libraries from B4A copy the files delivered by EREL. I appreciate your prompt response!