android - 自定义 android 地图的地方？

Question

我想根据业务、收藏夹等区域的选择显示我的地点的地图。
我正在使用以下意图进行搜索并在 Android 的地图中显示结果

    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps"));
    startActivity(intent);

当我将地图位置单击为收藏夹时，它会在我的位置中显示该位置。

如何在 Android 中根据类别划分地点？

Answer 1

您应该使用 place api 来选择区域。

一步步，

如何获取某个位置的最近位置列表。

第 1 步：前往 API 控制台获取 Place API

https://code.google.com/apis/console/

并在服务选项卡上选择

就地服务

现在选择 API Access 选项卡并获取 API KEY

现在你有一个 API 密钥来获取位置

---

现在在编程

*步骤 2 * ：首先创建一个名为Place.java的类。此类用于包含 Place api 提供的 place 属性。

package com.android.code.GoogleMap.NearsetLandmark;

import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONException;
import org.json.JSONObject;


public class Place {
    private String id;
    private String icon;
    private String name;
    private String vicinity;
    private Double latitude;
    private Double longitude;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getIcon() {
        return icon;
    }

    public void setIcon(String icon) {
        this.icon = icon;
    }

    public Double getLatitude() {
        return latitude;
    }

    public void setLatitude(Double latitude) {
        this.latitude = latitude;
    }

    public Double getLongitude() {
        return longitude;
    }

    public void setLongitude(Double longitude) {
        this.longitude = longitude;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getVicinity() {
        return vicinity;
    }

    public void setVicinity(String vicinity) {
        this.vicinity = vicinity;
    }

    static Place jsonToPontoReferencia(JSONObject pontoReferencia) {
        try {
            Place result = new Place();
            JSONObject geometry = (JSONObject) pontoReferencia.get("geometry");
            JSONObject location = (JSONObject) geometry.get("location");
            result.setLatitude((Double) location.get("lat"));
            result.setLongitude((Double) location.get("lng"));
            result.setIcon(pontoReferencia.getString("icon"));
            result.setName(pontoReferencia.getString("name"));
            result.setVicinity(pontoReferencia.getString("vicinity"));
            result.setId(pontoReferencia.getString("id"));
            return result;
        } catch (JSONException ex) {
            Logger.getLogger(Place.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }

    @Override
    public String toString() {
        return "Place{" + "id=" + id + ", icon=" + icon + ", name=" + name + ", latitude=" + latitude + ", longitude=" + longitude + '}';
    }

}

现在创建一个名为PlacesService的类

package com.android.code.GoogleMap.NearsetLandmark;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;


public class PlacesService {

    private String API_KEY;

    public PlacesService(String apikey) {
        this.API_KEY = apikey;
    }

    public void setApiKey(String apikey) {
        this.API_KEY = apikey;
    }

    public List<Place> findPlaces(double latitude, double longitude,String placeSpacification) 
    {

        String urlString = makeUrl(latitude, longitude,placeSpacification);


        try {
            String json = getJSON(urlString);

            System.out.println(json);
            JSONObject object = new JSONObject(json);
            JSONArray array = object.getJSONArray("results");


            ArrayList<Place> arrayList = new ArrayList<Place>();
            for (int i = 0; i < array.length(); i++) {
                try {
                    Place place = Place.jsonToPontoReferencia((JSONObject) array.get(i));

                    Log.v("Places Services ", ""+place);


                    arrayList.add(place);
                } catch (Exception e) {
                }
            }
            return arrayList;
        } catch (JSONException ex) {
            Logger.getLogger(PlacesService.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }
//https://maps.googleapis.com/maps/api/place/search/json?location=28.632808,77.218276&radius=500&types=atm&sensor=false&key=your_api_key
    private String makeUrl(double latitude, double longitude,String place) {
         StringBuilder urlString = new StringBuilder("https://maps.googleapis.com/maps/api/place/search/json?");

        if (place.equals("")) {
                urlString.append("&location=");
                urlString.append(Double.toString(latitude));
                urlString.append(",");
                urlString.append(Double.toString(longitude));
                urlString.append("&radius=1000");
             //   urlString.append("&types="+place);
                urlString.append("&sensor=false&key=" + API_KEY);
        } else {
                urlString.append("&location=");
                urlString.append(Double.toString(latitude));
                urlString.append(",");
                urlString.append(Double.toString(longitude));
                urlString.append("&radius=1000");
                urlString.append("&types="+place);
                urlString.append("&sensor=false&key=" + API_KEY);
        }


        return urlString.toString();
    }

    protected String getJSON(String url) {
        return getUrlContents(url);
    }

    private String getUrlContents(String theUrl) 
    {
        StringBuilder content = new StringBuilder();

        try {
            URL url = new URL(theUrl);
            URLConnection urlConnection = url.openConnection();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()), 8);
            String line;
            while ((line = bufferedReader.readLine()) != null) 
            {
                content.append(line + "\n");
            }

            bufferedReader.close();
        }

        catch (Exception e)
        {

            e.printStackTrace();

        }

        return content.toString();
    }
}

现在创建一个新的 Activity，您想在其中获取最近地点的列表。

/** * */

    package com.android.code.GoogleMap.NearsetLandmark;

    import java.io.BufferedInputStream;
    import java.io.BufferedOutputStream;
    import java.io.ByteArrayOutputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.net.MalformedURLException;
    import java.net.URL;
    import java.util.List;


    import android.app.AlertDialog;
    import android.app.ListActivity;
    import android.content.Context;
    import android.graphics.Bitmap;
    import android.graphics.BitmapFactory;
    import android.graphics.Canvas;
    import android.graphics.Paint;
    import android.graphics.Point;
    import android.graphics.drawable.Drawable;
    import android.location.Address;
    import android.location.Location;
    import android.location.LocationListener;
    import android.location.LocationManager;
    import android.net.Uri;
    import android.os.AsyncTask;
    import android.os.Bundle;
    import android.util.Log;
    import android.view.ContextMenu;
    import android.view.ContextMenu.ContextMenuInfo;
    import android.view.LayoutInflater;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ArrayAdapter;
    import android.widget.BaseAdapter;
    import android.widget.ImageView;
    import android.widget.ListView;
    import android.widget.TextView;

    import com.android.code.R;
    import com.google.android.maps.MapActivity;
    import com.google.android.maps.MapController;
    import com.google.android.maps.MapView;
    import com.google.android.maps.GeoPoint;
    import com.google.android.maps.MapActivity;
    import com.google.android.maps.MapController;
    import com.google.android.maps.MapView;
    import com.google.android.maps.Overlay;

    /**
     * @author dwivedi ji     * 
     *        */
    public class CheckInActivity extends ListActivity {

    private String[] placeName;
    private String[] imageUrl;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);




        new GetPlaces(this,getListView()).execute();
    }

    class GetPlaces extends AsyncTask<Void, Void, Void>{
        Context context;
        private ListView listView;
        private ProgressDialog bar;
        public GetPlaces(Context context, ListView listView) {
            // TODO Auto-generated constructor stub
            this.context = context;
            this.listView = listView;
        }

        @Override
        protected void onPostExecute(Void result) {
            // TODO Auto-generated method stub
            super.onPostExecute(result);
            bar.dismiss();
              this.listView.setAdapter(new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, placeName));

        }

        @Override
        protected void onPreExecute() {
            // TODO Auto-generated method stub
            super.onPreExecute();
              bar =  new ProgressDialog(context);
            bar.setIndeterminate(true);
            bar.setTitle("Loading");
            bar.show();


        }

        @Override
        protected Void doInBackground(Void... arg0) {
            // TODO Auto-generated method stub
            findNearLocation();
            return null;
        }

    }
    public void findNearLocation()   {

        PlacesService service = new PlacesService("past your key");

       /* 
        Hear you should call the method find nearst place near to central park new delhi then we pass the lat and lang of central park. hear you can be pass you current location lat and lang.The third argument is used to set the specific place if you pass the atm the it will return the list of nearest atm list. if you want to get the every thing then you should be pass "" only   
       */


          List<Place> findPlaces = service.findPlaces(28.632808,77.218276,"atm");
                                                      // Hear third argument, we pass the atm for getting atm , if you pass the hospital then this method return list of hospital , If you pass nothing then it will return all landmark 

            placeName = new String[findPlaces.size()];
            imageUrl = new String[findPlaces.size()];

          for (int i = 0; i < findPlaces.size(); i++) {

              Place placeDetail = findPlaces.get(i);
              placeDetail.getIcon();

            System.out.println(  placeDetail.getName());
            placeName[i] =placeDetail.getName();

            imageUrl[i] =placeDetail.getIcon();

        }





    }


}