百度地图之精度和纬度的相互转换 - JAVA

 package com.njupt.bmap_helloworld;  
  
import java.util.ArrayList;  
import java.util.List;  
  
import com.baidu.mapapi.BMapManager;  
import com.baidu.mapapi.GeoPoint;  
import com.baidu.mapapi.ItemizedOverlay;  
import com.baidu.mapapi.MKAddrInfo;  
import com.baidu.mapapi.MKBusLineResult;  
import com.baidu.mapapi.MKDrivingRouteResult;  
import com.baidu.mapapi.MKGeneralListener;  
import com.baidu.mapapi.MKPoiResult;  
import com.baidu.mapapi.MKSearch;  
import com.baidu.mapapi.MKSearchListener;  
import com.baidu.mapapi.MKSuggestionResult;  
import com.baidu.mapapi.MKTransitRouteResult;  
import com.baidu.mapapi.MKWalkingRouteResult;  
import com.baidu.mapapi.MapActivity;  
import com.baidu.mapapi.MapController;  
import com.baidu.mapapi.MapView;  
import com.baidu.mapapi.OverlayItem;  
import com.baidu.mapapi.PoiOverlay;  
  
import android.os.Bundle;  
import android.app.Activity;  
import android.content.Context;  
import android.graphics.drawable.Drawable;  
import android.view.Menu;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
import android.widget.EditText;  
import android.widget.Toast;  
  
public class MainActivity extends MapActivity implements OnClickListener{  
  
    private MapView mapView;//百度地图的相关控件  
    private BMapManager bMapManager;//加载地图的引擎  
    private String keyString = "04763B1D8C925195965E838C6E59DB767DAE4BA7";//百度地图的key  
    private MapController mapController;//在百度地图上添加一些控件,比如放大或缩小控件  
      
    private MKSearch mkSearch;  
      
    private Button button;  
    private Button button2;  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
        button = (Button) findViewById(R.id.reverseCode);  
        button2 = (Button) findViewById(R.id.geocode);  
        button.setOnClickListener(this);  
        button2.setOnClickListener(this);  
          
        mapView = (MapView) findViewById(R.id.bmapView);  
        bMapManager = new BMapManager(MainActivity.this);  
          
        //必须要加载key  
        bMapManager.init(keyString, new MKGeneralListener() {  
              
            @Override  
            public void onGetPermissionState(int arg0) {  
                if(arg0 == 300){  
                    Toast.makeText(MainActivity.this, "输入的key有误,请核实...", 1).show();  
                }  
            }  
              
            @Override  
            public void onGetNetworkState(int arg0) {  
                // TODO Auto-generated method stub  
                  
            }  
        });  
          
        bMapManager.start();  
        initMapActivity(bMapManager);  
        mapView.setBuiltInZoomControls(true);//表示可以设置缩放功能  
        mkSearch = new MKSearch();  
        mkSearch.init(bMapManager, new MySearchListener());  
        /** 
         * 根据中心点、半径与检索词发起周边检索 
         * 第一个是查询的名称,第二个参数是构建一个GeoPoint点,第三个参数是查询的半径 
         */  
    }  
  
    @Override  
    public void onClick(View v) {  
        switch (v.getId()) {  
        case R.id.reverseCode:  
            GeoPoint geoPoint = new GeoPoint(39904965, 116327764);  
            mkSearch.reverseGeocode(geoPoint);  
            break;  
  
            case R.id.geocode:  
                EditText city = (EditText) this.findViewById(R.id.city);  
                EditText geocodekey = (EditText) this.findViewById(R.id.geocodekey);  
                mkSearch.geocode(city.getText().toString(), geocodekey.getText().toString());  
                  
                break;  
        default:  
            break;  
        }  
    }  
      
    public class OverItemT extends ItemizedOverlay




{  
  
        private List list = new ArrayList();  
          
        public OverItemT(Drawable marker,Context context,GeoPoint ge
百度地图之精度和纬度的相互转换(一)
