1. Create Blank Activity App
2. Edit build.grade
3. Edit Android.manifest
– meta for Google Service
– meta for API key
– permissions for internet, network state and write external storage
– meta for OpenGL
activity_main.xml
<fragment xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/map" andorid:layout_width="match_parent" android:layout_height="match_parent" android:name="com.google.anroid.gms.maps.MapFragment"/>