I am using OSMdroid's MapView and I am planning to add custom maps. I cannot convert them via MOBAC, I need to find out the format preferrences and characteristics. Have you seem some information about it? I have been looking for it for weeks but no luck.
Do you mean the tile format? I belive this is a good reference.
来源：https://stackoverflow.com/questions/9094076/osmdroid-zip-how-to-add-custom-maps