Make a geocode request

package com.mapbox.mapboxandroiddemo.examples.javaservices;
 
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.ListPopupWindow;
import android.text.TextUtils;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
 
import com.mapbox.api.geocoding.v5.GeocodingCriteria;
import com.mapbox.api.geocoding.v5.MapboxGeocoding;
import com.mapbox.api.geocoding.v5.models.CarmenFeature;
import com.mapbox.api.geocoding.v5.models.GeocodingResponse;
import com.mapbox.core.exceptions.ServicesException;
import com.mapbox.geojson.Point;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraPosition;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Style;
 
import java.util.ArrayList;
import java.util.List;
 
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import timber.log.Timber;
 
/**
* Use the Mapbox Geocoding API to retrieve various information about a set of coordinates.
*/
public class GeocodingActivity extends AppCompatActivity implements OnMapReadyCallback {
 
private MapView mapView;
private MapboxMap mapboxMap;
private Button chooseCityButton;
private EditText latEditText;
private EditText longEditText;
private TextView geocodeResultTextView;
 
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
 
// Mapbox access token is configured here. This needs to be called either in your application
// object or in the same activity which contains the mapview.
Mapbox.getInstance(this, getString(R.string.access_token));
 
// This contains the MapView in XML and needs to be called after the access token is configured.
setContentView(R.layout.activity_javaservices_geocoding);
 
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
}
 
@Override
public void onMapReady(@NonNull MapboxMap mapboxMap) {
this.mapboxMap = mapboxMap;
mapboxMap.setStyle(Style.MAPBOX_STREETS, new Style.OnStyleLoaded() {
@Override
public void onStyleLoaded(@NonNull Style style) {
initTextViews();
initButtons();
}
});
}
 
private void initTextViews() {
latEditText = findViewById(R.id.geocode_latitude_editText);
longEditText = findViewById(R.id.geocode_longitude_editText);
geocodeResultTextView = findViewById(R.id.geocode_result_message);
}
 
private void initButtons() {
Button mapCenterButton = findViewById(R.id.map_center_button);
Button startGeocodeButton = findViewById(R.id.start_geocode_button);
chooseCityButton = findViewById(R.id.choose_city_spinner_button);
startGeocodeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Make sure the EditTexts aren't empty
if (TextUtils.isEmpty(latEditText.getText().toString())) {
latEditText.setError(getString(R.string.fill_in_a_value));
} else if (TextUtils.isEmpty(longEditText.getText().toString())) {
longEditText.setError(getString(R.string.fill_in_a_value));
} else {
if (latCoordinateIsValid(Double.valueOf(latEditText.getText().toString()))
&& longCoordinateIsValid(Double.valueOf(longEditText.getText().toString()))) {
// Make a geocoding search with the values inputted into the EditTexts
makeGeocodeSearch(new LatLng(Double.valueOf(latEditText.getText().toString()),
Double.valueOf(longEditText.getText().toString())));
} else {
Toast.makeText(GeocodingActivity.this, R.string.make_valid_lat, Toast.LENGTH_LONG).show();
}
}
}
});
chooseCityButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showCityListMenu();
}
});
mapCenterButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Get the map's target
LatLng target = mapboxMap.getCameraPosition().target;
 
// Fill the coordinate EditTexts with the target's coordinates
setCoordinateEditTexts(target);
 
// Make a geocoding search with the target's coordinates
makeGeocodeSearch(target);
 
}
});
}
 
private boolean latCoordinateIsValid(double value) {
return value >= -90 && value <= 90;
}
 
private boolean longCoordinateIsValid(double value) {
return value >= -180 && value <= 180;
}
 
private void setCoordinateEditTexts(LatLng latLng) {
latEditText.setText(String.valueOf(latLng.getLatitude()));
longEditText.setText(String.valueOf(latLng.getLongitude()));
}
 
private void showCityListMenu() {
List<String> modes = new ArrayList<>();
modes.add("Vancouver");
modes.add("Helsinki");
modes.add("Lima");
modes.add("Osaka");
ArrayAdapter<String> profileAdapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_1, modes);
final ListPopupWindow listPopup = new ListPopupWindow(this);
listPopup.setAdapter(profileAdapter);
listPopup.setAnchorView(chooseCityButton);
listPopup.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long longg) {
LatLng cityLatLng = new LatLng();
if (position == 0) {
// Vancouver
cityLatLng = new LatLng(49.2827, -123.1207);
setCoordinateEditTexts(cityLatLng);
} else if (position == 1) {
// Helsinki
cityLatLng = new LatLng(60.1698, 24.938);
setCoordinateEditTexts(cityLatLng);
} else if (position == 2) {
// Lima
cityLatLng = new LatLng(-12.0463, -77.0427);
setCoordinateEditTexts(cityLatLng);
} else if (position == 3) {
// Osaka
cityLatLng = new LatLng(34.693, 135.5021);
setCoordinateEditTexts(cityLatLng);
}
animateCameraToNewPosition(cityLatLng);
makeGeocodeSearch(cityLatLng);
listPopup.dismiss();
}
});
listPopup.show();
}
 
private void makeGeocodeSearch(final LatLng latLng) {
try {
// Build a Mapbox geocoding request
MapboxGeocoding client = MapboxGeocoding.builder()
.accessToken(getString(R.string.access_token))
.query(Point.fromLngLat(latLng.getLongitude(), latLng.getLatitude()))
.geocodingTypes(GeocodingCriteria.TYPE_PLACE)
.mode(GeocodingCriteria.MODE_PLACES)
.build();
client.enqueueCall(new Callback<GeocodingResponse>() {
@Override
public void onResponse(Call<GeocodingResponse> call,
Response<GeocodingResponse> response) {
if (response.body() != null) {
List<CarmenFeature> results = response.body().features();
if (results.size() > 0) {
 
// Get the first Feature from the successful geocoding response
CarmenFeature feature = results.get(0);
geocodeResultTextView.setText(feature.toString());
animateCameraToNewPosition(latLng);
} else {
Toast.makeText(GeocodingActivity.this, R.string.no_results,
Toast.LENGTH_SHORT).show();
}
}
}
 
@Override
public void onFailure(Call<GeocodingResponse> call, Throwable throwable) {
Timber.e("Geocoding Failure: " + throwable.getMessage());
}
});
} catch (ServicesException servicesException) {
Timber.e("Error geocoding: " + servicesException.toString());
servicesException.printStackTrace();
}
}
 
private void animateCameraToNewPosition(LatLng latLng) {
mapboxMap.animateCamera(CameraUpdateFactory
.newCameraPosition(new CameraPosition.Builder()
.target(latLng)
.zoom(13)
.build()), 1500);
}
 
// Add the mapView lifecycle to the activity's lifecycle methods
@Override
public void onResume() {
super.onResume();
mapView.onResume();
}
 
@Override
protected void onStart() {
super.onStart();
mapView.onStart();
}
 
@Override
protected void onStop() {
super.onStop();
mapView.onStop();
}
 
@Override
public void onPause() {
super.onPause();
mapView.onPause();
}
 
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
 
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
 
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
}