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android - map.setmylocationenabled(true) not working

I'm working with Google Maps in my android app. I need to recenter the map to the client's current location. I used the following statement -

map.setmylocationenabled(true);

This displays a button on the top right but clicking that doesn't work.

The button click listener:

mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
                @Override
                public boolean onMyLocationButtonClick() {
                    mMap.addMarker(new MarkerOptions().position(myLatLng).title("My Location"));
                    mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(myLatLng, zoomLevel));
                    return false;
                }
            });
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The last line was a solution for me:

myMap.setMyLocationEnabled(true);
myMap.getUiSettings().setMyLocationButtonEnabled(true);

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