My-Location Button of GoogleMaps v2 Android, not displayed

Question

I'm doing an app, with google maps, but when I try to add "my-location" button, as the reference says doesn't work...

thats how I do:

protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();          locManager = (LocationManager)getSystemService(LOCATION_SERVICE);         providersList = locManager.getAllProviders();         provider =locManager.getProvider(providersList.get(0));         precision = provider.getAccuracy();         req = new Criteria();         req.setAccuracy(Criteria.ACCURACY_FINE);                 inside = false;          map.getUiSettings().setMyLocationButtonEnabled(true);          buildPolygon();         drawPolygon();         startLocalization();     } 

I used map.getUiSettings().setMyLocationButtonEnabled(true); as shows in the reference of google. I don't know what's going on..

Answer 1

The myLocationButtonEnabled is true by default and shown when the setMyLocationEnabled layer is enabled.

try this:

protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);      map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();      // Add this line     map.setMyLocationEnabled(true);      locManager = (LocationManager)getSystemService(LOCATION_SERVICE);     providersList = locManager.getAllProviders();     provider =locManager.getProvider(providersList.get(0));     precision = provider.getAccuracy();     req = new Criteria();     req.setAccuracy(Criteria.ACCURACY_FINE);             inside = false;      //map.getUiSettings().setMyLocationButtonEnabled(true);      buildPolygon();     drawPolygon();     startLocalization(); } 

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setMyLocationEnabled Documentation
setMyLocationButtonEnabled Documentation

Answer 2

just add map.setMyLocationEnabled(true); after create your map

map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap(); 

to be like this

map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();  map.setMyLocationEnabled(true);