Get permission before downloading Google Maps Android map?

Question

Android

Hello, you need to get permission before downloading Google Maps Android map. Now it turns out that after agreeing to determine my location, the MyLocation button does not appear, but after restarting the application, the button is already in place. Logically, it is clear that you need to build permission before loading the map. However, all the physical moves of a part of the code to all possible places did not give a result.
The code itself:

protected void onCreate(Bundle savedInstanceState) {
        ActivityCompat.requestPermissions(
                this,
                new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                MY_LOCATION_REQUEST_CODE
        );
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                == PackageManager.PERMISSION_GRANTED) {
            mMap.setMyLocationEnabled(true);
        }
        if (MY_LOCATION_REQUEST_CODE == 1) {
        } else {
        }
        mMap.getUiSettings().setMyLocationButtonEnabled(true);

Tell me how to build a resolution before loading the map?
Thanks in advance

Answer 1

RTFM
Permissions are checked in onCreate(), if not, request using requestPermissions(), then check the result of the request in onRequestPermissionsResult().