Ближайшие места на картах Google не отображаются. (Показывает только тосты, но не отмечают / не показывают близлежащие места).

Question

Ближайшие места на картах Google не отображаются. Когда я нажимаю кнопку «Больница», на ней отображаются только сообщения с тостами, когда я нажимаю кнопку «Школа», на ней отображаются только сообщения с тостами, а при нажатии кнопки «Ресторан» - только сообщения с тостами. Также, когда я запускаю код, он не показывает никакой ошибки. Итак, я запутался, что не так с этим кодом. Другой вопрос, я использовал тот же ключ API для Google Maps и Google API это вызовет какие-либо проблемы.

Вот код:

package com.example.maps;
import ...
public class MapsActivity extends FragmentActivity implements
        OnMapReadyCallback,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener,
        LocationListener
{
    private GoogleMap mMap;
    private GoogleApiClient googleApiClient;
    private LocationRequest locationRequest;
    private Location lastLocation;
    private Marker currentUserLocationMarker;
    private static final int Request_User_Location_Code = 99;
    private double latitude, longitude;
    private int ProximityRadius = 10000;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        {
            checkUserLocationPermission();
        }

        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }
    public void onClick(View v)
    {
        String hospital = "hospital", school = "school", restaurant = "restaurant";
        Object transferData[] = new Object[2];
        GetNearbyPlaces getNearbyPlaces = new GetNearbyPlaces();
        switch (v.getId())
        {
            case R.id.search_address:
                EditText addressField = (EditText) findViewById(R.id.location_search);
                String address = addressField.getText().toString();
                List<Address> addressList = null;
                MarkerOptions userMarkerOptions = new MarkerOptions();    
                if ( !TextUtils.isEmpty(address))
                {
                    Geocoder geocoder = new Geocoder(this);

                    try
                    {
                        addressList = geocoder.getFromLocationName(address, 6);
                        if (addressList != null)
                        {
                            for (int i = 0; i< addressList.size(); i++)
                            {
                                Address userAddress = addressList.get(i);
                                LatLng latLng = new LatLng(userAddress.getLatitude(), userAddress.getLongitude());    
                                userMarkerOptions.position(latLng);
                                userMarkerOptions.title(address);
                                userMarkerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
                                mMap.addMarker(userMarkerOptions);
                                mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
                                mMap.animateCamera(CameraUpdateFactory.zoomTo(6));;
                            }
                        }
                        else
                        {
                            Toast.makeText(this, "Location not found", Toast.LENGTH_SHORT).show();
                        }
                    }
                    catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                else
                {
                    Toast.makeText(this, "Please write the location name you want to search", Toast.LENGTH_SHORT).show();
                }
                break;    
            case R.id.hospital_nearby:
                mMap.clear();
                String url = getUrl(latitude, longitude, hospital);
                transferData[0] = mMap;
                transferData[1] = url;    
                getNearbyPlaces.execute(transferData);
                Toast.makeText(this, "Searching nearby hospitals", Toast.LENGTH_SHORT).show();
                Toast.makeText(this, "Showing nearby hospital", Toast.LENGTH_SHORT).show();
                break;      
            case R.id.school_nearby:
                mMap.clear();
                url = getUrl(latitude, longitude, school);
                transferData[0] = mMap;
                transferData[1] = url;

                getNearbyPlaces.execute(transferData);
                Toast.makeText(this, "Searching nearby school", Toast.LENGTH_SHORT).show();
                Toast.makeText(this, "Showing nearby school", Toast.LENGTH_SHORT).show();
                break;



            case R.id.restaurants_nearby:
                mMap.clear();
                url = getUrl(latitude, longitude, restaurant);
                transferData[0] = mMap;
                transferData[1] = url;    
                getNearbyPlaces.execute(transferData);
                Toast.makeText(this, "Searching nearby restaurant", Toast.LENGTH_SHORT).show();
                Toast.makeText(this, "Showing nearby restaurant", Toast.LENGTH_SHORT).show();
                break;        
        }
    }    
    private String getUrl(double latitude, double longitude, String nearbyPlace)
    {

        StringBuilder googleURL = new StringBuilder("https://maps.googleapis.com/maps/api/place/nearbysearch/json?");
        googleURL.append("location=" + latitude + "," + longitude);
        googleURL.append("&radius=" + ProximityRadius);
        googleURL.append("&type=" + nearbyPlace);
        googleURL.append("&sensor=true");
        googleURL.append("&key=" + "AIzaSyA-ewSczADO0ztObDJC5U1k708JuA2SeRQ");    
        Log.d("GoogleMapsActivity", "Url = " + googleURL.toString());    
        return googleURL.toString();   
    }    
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
        {    
            buildGoogleApiClient();    
            mMap.setMyLocationEnabled(true);
        }
    }    
    public boolean checkUserLocationPermission()
    {
        if (ContextCompat.checkSelfPermission(this,Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
        {
            if (ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.ACCESS_FINE_LOCATION))
            {
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, Request_User_Location_Code );
            }
            else{
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, Request_User_Location_Code );
            }
            return false;
        }
        else{
            return true;
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
    {
        switch (requestCode)
        {
            case Request_User_Location_Code:
                if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
                {
                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
                    {
                        if (googleApiClient == null)
                        {
                            buildGoogleApiClient();
                        }
                        mMap.setMyLocationEnabled(true);
                    }
                }
                else
                {
                    Toast.makeText(this, "Permission Denied...", Toast.LENGTH_SHORT).show();
                }
                return;
        }
    }    
    protected synchronized void buildGoogleApiClient()
    {
        googleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();

        googleApiClient.connect();
    }    
    @Override
    public void onLocationChanged(Location location)
    {    
        latitude = location.getLatitude();
        longitude = location.getLongitude();    
        lastLocation = location;    
        if(currentUserLocationMarker != null)
        {
            currentUserLocationMarker.remove();
        }    
        LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());    
        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.position(latLng);
        markerOptions.title("Your Location");            markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));    
        currentUserLocationMarker = mMap.addMarker(markerOptions);    
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.animateCamera(CameraUpdateFactory.zoomBy(12));;    
        if (googleApiClient != null)
        {
            LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient,this);
        }
    }
    @Override
    public void onConnected(@Nullable Bundle bundle) {    
        locationRequest = new LocationRequest();
        locationRequest.setInterval(1100);
        locationRequest.setFastestInterval(1100);
        locationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
        {
            LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
        }
    }