I'm developing an app whose main function is to capture the user's location. I have already made a code of the error, I do not know if it is complete, I followed following internet examples:
Code:
private GoogleMap mMap;
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
MapFragment fragment = (MapFragment)getChildFragmentManager().findFragmentById(R.id.map);
fragment.getMapAsync(this);
return rootView;
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap.setMyLocationEnabled(true);
}
Run-time error:
Process: com.compscitutorials.basigarcia.navigationdrawervideotutorial, PID: 16457
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.maps.GoogleMap.setMyLocationEnabled(boolean)' on a null object reference
at br.com.projeto.caminhossembarreiras.MainFragment.onMapReady(MainFragment.java:37)
at com.google.android.gms.maps.MapFragment$zza$1.zza(Unknown Source)
at com.google.android.gms.maps.internal.zzl$zza.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:387)
at com.google.android.gms.maps.internal.v$a$a.a(:com.google.android.gms.alldynamite:82)
at maps.ei.bu$6.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:746)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Line error:
mMap.setMyLocationEnabled(true);