Android Programming: The Big Nerd Ranch Guide, 2nd Edition

Setting Up Your Map

Now that you have the Maps API set up, you need to create a map. Maps are displayed, appropriately enough, in a MapView. MapView is like other views, mostly, except in one way: for it to work correctly, you have to forward all of your lifecycle events, like this:

@​O​v​e​r​r​i​d​e​
p​u​b​l​i​c​ ​v​o​i​d​ ​o​n​C​r​e​a​t​e​(​B​u​n​d​l​e​ ​s​a​v​e​d​I​n​s​t​a​n​c​e​S​t​a​t​e​)​ ​{​
 ​ ​ ​ ​s​u​p​e​r​.​o​n​C​r​e​a​t​e​(​s​a​v​e​d​I​n​s​t​a​n​c​e​S​t​a​t​e​)​;​

 ​ ​ ​ ​m​M​a​p​V​i​e​w​.​o​n​C​r​e​a​t​e​(​s​a​v​e​d​I​n​s​t​a​n​c​e​S​t​a​t​e​)​;​
}​

This is a huge pain in the neck. It is far easier to let the SDK do that work for you instead by using a MapFragment or, if you are using support library fragments, SupportMapFragment ...