android---高德地图（3）点击获得目的经纬度，地理编码

点击获得目的地经纬度，利用经纬度将目的地编码获得目的地的名称

package com.amapv2.apis.basic;  //包名，需要修改

 

import android.app.Activity;

import android.os.Bundle;

import android.view.MotionEvent;

import android.widget.TextView;

import com.amap.api.maps.AMap;

import com.amap.api.maps.AMap.OnCameraChangeListener;

import com.amap.api.maps.AMap.OnMapClickListener;

import com.amap.api.maps.AMap.OnMapLongClickListener;

import com.amap.api.maps.AMap.OnMapTouchListener;

import com.amap.api.maps.MapView;

import com.amap.api.maps.model.CameraPosition;

import com.amap.api.maps.model.LatLng;

import com.amap.api.maps.model.LatLngBounds;

import com.amap.api.maps.model.VisibleRegion;

import com.amapv2.apis.R;

import com.amapv2.apis.util.Constants;

import com.amapv2.apis.util.ToastUtil;

 

/**

 * AMapV2地图中简单介绍OnMapClickListener, OnMapLongClickListener,

 * OnCameraChangeListener、OnMapTouchListener四种监听器用法

 */

 

public class EventsActivity extends Activity implements OnMapClickListener,

        OnMapLongClickListener, OnCameraChangeListener,OnMapTouchListener,OnGeocodeSearchListener{

    private AMap aMap;

    private MapView mapView;

    private TextView mTapTextView;

    private TextView mCameraTextView;

    private TextView mTouchTextView;

  private String destination; //目的地的字符串

private  GeocodeSearch geocoderSearch; //地理编码

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.events_activity);

        mapView = (MapView) findViewById(R.id.map);

        mapView.onCreate(savedInstanceState);// 此方法必须重写

   //地理编码事件监听
        geocoderSearch = new GeocodeSearch(this);
        geocoderSearch.setOnGeocodeSearchListener(this);

        init();

    }

 

    /**

     * 初始化AMap对象

     */

    private void init() {

        if (aMap == null) {

            aMap = mapView.getMap();

            setUpMap();

        }

        mTapTextView = (TextView) findViewById(R.id.tap_text);

        mCameraTextView = (TextView) findViewById(R.id.camera_text);

        mTouchTextView = (TextView) findViewById(R.id.touch_text);

    }

 

    /**

     * amap添加一些事件监听器

     */

    private void setUpMap() {

         

        aMap.setOnMapClickListener(this);// 对amap添加单击地图事件监听器

        aMap.setOnMapLongClickListener(this);// 对amap添加长按地图事件监听器

        aMap.setOnCameraChangeListener(this);// 对amap添加移动地图事件监听器

        aMap.setOnMapTouchListener(this);// 对amap添加触摸地图事件监听器

    }

 

    /**

     * 方法必须重写

     */

    @Override

    protected void onResume() {

        super.onResume();

        mapView.onResume();

    }

 

    /**

     * 方法必须重写

     */

    @Override

    protected void onPause() {

        super.onPause();

        mapView.onPause();

    }

 

    /**

     * 方法必须重写

     */

    @Override

    protected void onSaveInstanceState(Bundle outState) {

        super.onSaveInstanceState(outState);

        mapView.onSaveInstanceState(outState);

    }

 

    /**

     * 方法必须重写

     */

    @Override

    protected void onDestroy() {

        super.onDestroy();

        mapView.onDestroy();

    }

 

    /**

     * 对单击地图事件回调

     */

    @Override

    public void onMapClick(LatLng point) {

        mTapTextView.setText("tapped, point=" + point);

    }

 

    /**

     * 对长按地图事件回调

     */

    @Override

    public void onMapLongClick(LatLng point) {

        mTapTextView.setText("long pressed, point=" + point);

    }

 

    /**

     * 对正在移动地图事件回调

     */

    @Override

    public void onCameraChange(CameraPosition cameraPosition) {

        mCameraTextView.setText("onCameraChange:" + cameraPosition.toString());

    }

 

    /**

     * 对移动地图结束事件回调

     */

    @Override

    public void onCameraChangeFinish(CameraPosition cameraPosition) {

        mCameraTextView.setText("onCameraChangeFinish:"

                + cameraPosition.toString());

        VisibleRegion visibleRegion = aMap.getProjection().getVisibleRegion(); // 获取可视区域、

 

        LatLngBounds latLngBounds = visibleRegion.latLngBounds;// 获取可视区域的Bounds

        boolean isContain = latLngBounds.contains(Constants.SHANGHAI);// 判断上海经纬度是否包括在当前地图可见区域

        if (isContain) {

            ToastUtil.show(EventsActivity.this, "上海市在地图当前可见区域内");

        } else {

            ToastUtil.show(EventsActivity.this, "上海市超出地图当前可见区域");

        }

    }

    /**

     * 对触摸地图事件回调

     */

    @Override

    public void onTouch(MotionEvent event) {

          

        mTouchTextView.setText("触摸事件：屏幕位置"+event.getY()+" "+event.getY());

    }

  //地理逆编码回调函数

@Override
public void onGeocodeSearched(GeocodeResult arg0, int arg1) {
// TODO Auto-generated method stub

}
//地理编码回调函数
@Override
public void onRegeocodeSearched(RegeocodeResult result, int resultcode) {
// TODO Auto-generated method stub
if(resultcode == 0)
{
if(result != null && result.getRegeocodeAddress() != null 
&& result.getRegeocodeAddress().getFormatAddress() != null)
{
destination = result.getRegeocodeAddress().getFormatAddress();         //获得目的地名称
}
}
}

}