How can i make an offline map for android app? Suggest any method for support offline map features?

1) OSMAND

OSMand offers rich offline navigation, including turn-by-turn voice guidance, re-routing and search. OSMand comes in both a free and paid version. The free version limits you to 10 map downloads (one of which must be the world base map) and some map add-ons, such as like contour lines, need to be paid for. Others, such as trip recording, audio/video notes and distance calculator, simply need to be enabled.

2) CITY MAPS 2GO

City Maps 2Go allows you to search for addresses, points of interest, restaurants and so on, all offline. It doesn't have the offline navigation options that some of the others do.