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package com.mapbox.mapboxsdk.testapp.activity.geocoding;
import android.graphics.PointF;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Gravity;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.TextView;
import com.mapbox.geocoder.GeocoderCriteria;
import com.mapbox.geocoder.MapboxGeocoder;
import com.mapbox.geocoder.service.models.GeocoderFeature;
import com.mapbox.geocoder.service.models.GeocoderResponse;
import com.mapbox.mapboxsdk.annotations.MarkerOptions;
import com.mapbox.mapboxsdk.constants.Style;
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.Projection;
import com.mapbox.mapboxsdk.testapp.R;
import java.util.List;
import retrofit.Callback;
import retrofit.Response;
import retrofit.Retrofit;
public class GeocoderActivity extends AppCompatActivity {
private static final String LOG_TAG = "GeocoderActivity";
private MapView mapView;
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_geocoder);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
}
textView = (TextView) findViewById(R.id.message);
setMessage(getString(R.string.geocoder_instructions));
mapView = (MapView) findViewById(R.id.mapView);
mapView.setStyleUrl(Style.MAPBOX_STREETS);
mapView.onCreate(savedInstanceState);
final ImageView dropPinView = new ImageView(this);
dropPinView.setImageResource(R.drawable.ic_droppin_24dp);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
dropPinView.setLayoutParams(params);
mapView.addView(dropPinView);
mapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(@NonNull final MapboxMap mapboxMap) {
final Projection projection = mapboxMap.getProjection();
final int width = mapView.getMeasuredWidth();
final int height = mapView.getMeasuredHeight();
// Click listener
mapboxMap.setOnMapClickListener(new MapboxMap.OnMapClickListener() {
@Override
public void onMapClick(@NonNull LatLng point) {
PointF centerPoint = new PointF(width / 2, (height + dropPinView.getHeight()) / 2);
LatLng centerLatLng = new LatLng(projection.fromScreenLocation(centerPoint));
setMessage("Geocoding...");
mapboxMap.removeAnnotations();
mapboxMap.addMarker(new MarkerOptions().position(centerLatLng));
geocode(centerLatLng);
}
});
}
});
}
@Override
public void onPause() {
super.onPause();
mapView.onPause();
}
@Override
public void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
/*
* Forward geocoding
*/
private void geocode(final LatLng point) {
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
MapboxGeocoder client = new MapboxGeocoder.Builder()
.setAccessToken(getString(R.string.mapbox_access_token))
.setCoordinates(point.getLongitude(), point.getLatitude())
.setType(GeocoderCriteria.TYPE_POI)
.build();
client.enqueue(new Callback<GeocoderResponse>()
{
@Override
public void onResponse(Response<GeocoderResponse> response, Retrofit retrofit) {
List<GeocoderFeature> results = response.body().getFeatures();
if (results.size() > 0) {
String placeName = results.get(0).getPlaceName();
setSuccess(placeName);
} else {
setMessage("No results.");
}
}
@Override
public void onFailure(Throwable t) {
setError(t.getMessage());
}
}
);
return null;
}
}.execute();
}
/*
* Update text view
*/
private void setMessage(String message) {
Log.d(LOG_TAG, "Message: " + message);
textView.setText(message);
}
private void setSuccess(String placeName) {
Log.d(LOG_TAG, "Place name: " + placeName);
textView.setText(placeName);
}
private void setError(String message) {
Log.e(LOG_TAG, "Error: " + message);
textView.setText("Error: " + message);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
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