谷歌地图返回空指针异常

您必须等到地图加载完毕…。

public class ChatFragment extends Fragment implements onMapReadyCallback {    private void initilizeMap() {      //SupportMapFragment mapFragment = (SupportMapFragment) fragmentManager.findFragmentById(R.id.map);      SupportMapFragment mapFrag = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);      mapFrag.getMapAsync(this);    }    @Override    public void onMapReady(final GoogleMap map) {        googleMap = map;        //Do other stuff..........    }}

编辑

SupportMapFragment mapFrag = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);

检查编辑代码，使用ChildFragmentManager。