mapFragment.getMap() returns null

Question

I\'m trying to get a map from a SupportMapFragment but it returns null. From what I read this could be because the fragment is not yet fully displayed and therefore no map e

Answer 1

Try moving all code that references your GoogleMap to onStart() or onResume(). The map in a map fragment isn't instantiated until after the fragment has gone through onCreateView (link), which happens after the parent activity has gone through onCreate(). Also, you need to check your GoogleMap for null regardless, because if google play services aren't installed, or the map isn't available for some other reason, it will be null.

Answer 2

You have to implement OnMapReadyCallback, define its public void onMapReady(GoogleMap map) and use it to operate on the fragment as stated in the Google API

Answer 3

From what I read this could be because the fragment is not yet fully displayed and therefore no map exists?

Correct.

Any ideas how to fix it?

Actually use the layout file, by calling setContentView(), and get rid of all the FragmentTransaction stuff. You can then retrieve the already-created SupportMapFragment and use it:

setContentView(R.layout.activity_main);

SupportMapFragment mapFrag=(SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.mapFragment);