public class MapsActivity extends FragmentActivity {

    private GoogleMap mMap; // Might be null if Google Play services APK is not available.

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        setUpMapIfNeeded();
    }

    @Override
    protected void onResume() {
        super.onResume();
        setUpMapIfNeeded();
    }

    /**
     * Sets up the map if it is possible to do so (i.e., the Google Play services APK is correctly
     * installed) and the map has not already been instantiated.. This will ensure that we only ever
     * call {@link #setUpMap()} once when {@link #mMap} is not null.
     * <p/>
     * If it isn't installed {@link SupportMapFragment} (and
     * {@link com.google.android.gms.maps.MapView MapView}) will show a prompt for the user to
     * install/update the Google Play services APK on their device.
     * <p/>
     * A user can return to this FragmentActivity after following the prompt and correctly
     * installing/updating/enabling the Google Play services. Since the FragmentActivity may not
     * have been completely destroyed during this process (it is likely that it would only be
     * stopped or paused), {@link #onCreate(Bundle)} may not be called again so we should call this
     * method in {@link #onResume()} to guarantee that it will be called.
     */
    private void setUpMapIfNeeded() {
        // Do a null check to confirm that we have not already instantiated the map.
        if (mMap == null) {
            // Try to obtain the map from the SupportMapFragment.
            mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
                    .getMap();
            // Check if we were successful in obtaining the map.
            if (mMap != null) {
                setUpMap();
            }
        }
    }

    /**
     * This is where we can add markers or lines, add listeners or move the camera. In this case, we
     * just add a marker near Africa.
     * <p/>
     * This should only be called once and when we are sure that {@link #mMap} is not null.
     */
    final float zoomLevel = 10f;
    float zoomBy = 0.5f;
    private void setUpMap() {
        LatLng ternopil = new LatLng(49.56085221, 25.6036377);
        mMap.addMarker(new MarkerOptions().position(ternopil).title("Marker"));

        final CameraUpdate center=
                CameraUpdateFactory.newLatLngZoom(ternopil, zoomLevel);
        mMap.moveCamera(center);

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                long delay = 0;
                float targetZoomLevel = 12f;
                while (zoomLevel + zoomBy < targetZoomLevel) {
                    new Handler().postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            mMap.animateCamera(CameraUpdateFactory.zoomBy(zoomBy), 1000, null);
                        }
                    }, delay);

                    delay += 2000; // Change this to whatever is good on the device
                    zoomBy += 0.5f;
                }
            }
        }, 2000);
    }
}