Android Baidu map api geocoding & anti-geocoding

I thought it was very troublesome, but the result is that Baidu has provided: the interface of geocoding & anti-geocoding.

mSearch.geocode(new GeoCodeOption().city(
					editCity.getText().toString()).address(
					editGeoCodeKey.getText().toString()));

mSearch.reverseGeoCode(new ReverseGeoCodeOption()
					.location(ptCenter));

After that, you only need to rewrite onGetGeoCodeResult(GeoCodeResult result) and onGetReverseGeoCodeResult(ReverseGeoCodeResult result) to customize the forward and reverse encoding.

Full code:

package baidumapsdk.demo;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MarkerOptions;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.geocode.GeoCodeOption;
import com.baidu.mapapi.search.geocode.GeoCodeResult;
import com.baidu.mapapi.search.geocode.GeoCoder;
import com.baidu.mapapi.search.geocode.OnGetGeoCoderResultListener;
import com.baidu.mapapi.search.geocode.ReverseGeoCodeOption;
import com.baidu.mapapi.search.geocode.ReverseGeoCodeResult;

/**
 * This demo is used to show how to perform geocoding search (retrieve coordinates by address), reverse geocoding search (retrieve address by coordinates)
 */
public class GeoCoderDemo extends Activity implements
		OnGetGeoCoderResultListener {
	GeoCoder mSearch = null; // The search module can also be used independently without the map module
	BaiduMap mBaiduMap = null;
	MapView mMapView = null;

	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate (savedInstanceState);
		setContentView(R.layout.activity_geocoder);
		CharSequence titleLable = "Geocoding Capability";
		setTitle(titleLable);

		// map initialization
		mMapView = (MapView) findViewById(R.id.bmapView);
		mBaiduMap = mMapView.getMap();

		// Initialize the search module and register event listeners
		mSearch = GeoCoder.newInstance();
		mSearch.setOnGetGeoCodeResultListener (this);
	}

	/**
	 * initiate a search
	 *
	 * @param v
	 */
	public void SearchButtonProcess(View v) {
		if (v.getId() == R.id.reversegeocode) {
			EditText lat = (EditText) findViewById(R.id.lat);
			EditText lon = (EditText) findViewById(R.id.lon);
			LatLng ptCenter = new LatLng((Float.valueOf(lat.getText()
					.toString())), (Float.valueOf(lon.getText().toString())));
			// reverse geo search
			mSearch.reverseGeoCode(new ReverseGeoCodeOption()
					.location(ptCenter));
			//@param：LatLng
		} else if (v.getId() == R.id.geocode) {
			EditText editCity = (EditText) findViewById(R.id.city);
			EditText editGeoCodeKey = (EditText) findViewById(R.id.geocodekey);
			// Geo search
			mSearch.geocode(new GeoCodeOption().city(
					editCity.getText().toString()).address(
					editGeoCodeKey.getText().toString()));
			//@param: city + address
		}
	}

	@Override
	protected void onPause() {
		mMapView.onPause();
		super.onPause();
	}

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

	@Override
	protected void onDestroy() {
		mMapView.onDestroy ();
		mSearch.destroy();
		super.onDestroy ();
	}

	@Override
	public void onGetGeoCodeResult(GeoCodeResult result) {
		if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {
			Toast.makeText(GeoCoderDemo.this, "Sorry, no results found", Toast.LENGTH_LONG)
					.show();
			return;
		}
		mBaiduMap.clear();
		mBaiduMap.addOverlay(new MarkerOptions().position(result.getLocation())
				.icon(BitmapDescriptorFactory
						.fromResource(R.drawable.icon_marka)));
		//add cover
		mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(result
				.getLocation()));
		//position
		String strInfo = String.format("Latitude: %f Longitude: %f",
				result.getLocation().latitude, result.getLocation().longitude);
		Toast.makeText(GeoCoderDemo.this, strInfo, Toast.LENGTH_LONG).show();
		//result saves the result city of geocoding --> coordinates
	}

	@Override
	public void onGetReverseGeoCodeResult(ReverseGeoCodeResult result) {
		if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {
			Toast.makeText(GeoCoderDemo.this, "Sorry, no results found", Toast.LENGTH_LONG)
					.show();
			return;
		}
		mBaiduMap.clear();
		mBaiduMap.addOverlay(new MarkerOptions().position(result.getLocation())
				.icon(BitmapDescriptorFactory
						.fromResource(R.drawable.icon_marka)));
		//add cover
		mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(result
				.getLocation()));
		//position
		Toast.makeText(GeoCoderDemo.this, result.getAddress(),
				Toast.LENGTH_LONG).show();
		//result saves the resulting coordinates of the geocoding --> city
	}

}