3D Maps in android apps

I Have some question about 3D Maps in apps. I know JAVA very well, but i have never tried to build some Android app,and i think now its the best time to start :). So, my question is, How can i build some 3D Map ? (For example the map in 'Pokemon go' or 'Waze'). I know that this is kind of funny question,Its a project that can takes years, so i will be more specific,What should i study to be able to make something similar ? What should i study to integrate flash(?) parts in my future app ?

Thanks a lot and sorry for my misunderstanding in apps development.