Android百度地图开发（三）范围搜索

1.新建项目

将地图API添加进classpath中：

2.在activity_main.xml中添加一个MapView，用来显示地图：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >



    <!-- 添加显示地图的控件 -->



    <com.baidu.mapapi.MapView

        android:id="@+id/bmapView"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:clickable="true" />



</LinearLayout>

3.修改AndroidManifest.xml文件，指定用户权限

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >

    </uses-permission>

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >

    </uses-permission>

    <uses-permission android:name="android.permission.INTERNET" >

    </uses-permission>

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >

    </uses-permission>

    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >

    </uses-permission>

    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" >

    </uses-permission>

    <uses-permission android:name="android.permission.READ_PHONE_STATE" >

    </uses-permission>

    <uses-permission android:name="android.permission.CALL_PHONE" >

    </uses-permission>



    <supports-screens

        android:anyDensity="true"

        android:largeScreens="true"

        android:normalScreens="false"

        android:resizeable="true"

        android:smallScreens="true" />

3.初始化地图引擎

        bMapManager = new BMapManager(MainActivity.this);

        bMapManager.init(keyString, new MKGeneralListener() {

            @Override

            public void onGetPermissionState(int arg0) {

                // TODO Auto-generated method stub

            }



            @Override

            public void onGetNetworkState(int arg0) {

                // TODO Auto-generated method stub

                if (arg0 == 300) {

                    Toast.makeText(MainActivity.this, "输入的key有误，请核实！", 1)

                            .show();

                }

            }

        });

        initMapActivity(bMapManager);    //初始化地图引擎

4.取得MapView组件

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

5.实例化search对象并添加监听

mkSearch = new MKSearch();

mkSearch.init(bMapManager, new MySearchListener());

监听类：

private class MySearchListener implements MKSearchListener {



        @Override

        public void onGetAddrResult(MKAddrInfo arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetPoiDetailSearchResult(int arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetPoiResult(MKPoiResult result, int type, int isError) {

            // TODO Auto-generated method stub

            if(result == null){

                return;

            }

            PoiOverlay poiOverlay = new PoiOverlay(MainActivity.this, mapView);

            poiOverlay.setData(result.getAllPoi());

            mapView.getOverlays().add(poiOverlay);

            mapView.invalidate();

        }



        @Override

        public void onGetRGCShareUrlResult(String arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }

    }

6.根据关键词、中心点、半径进行搜索。

// 关键词，中心点，范围半径

mkSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6), (int) (116.404 * 1E6)), 5000);

7.恢复、暂停、停止地图时地图引擎的操作

    @Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        if (bMapManager != null) {

            bMapManager.destroy();

            bMapManager = null;

        }

    }



    @Override

    protected void onResume() {

        // TODO Auto-generated method stub

        super.onResume();

        if (bMapManager != null) {

            bMapManager.start();

        }

    }



    @Override

    protected void onPause() {

        // TODO Auto-generated method stub

        super.onPause();

        if (bMapManager != null) {

            bMapManager.stop();

        }

    }

完整代码：

package com.example.baiduhellopoioverlay;



import android.os.Bundle;

import android.view.Menu;

import android.widget.Toast;



import com.baidu.mapapi.BMapManager;

import com.baidu.mapapi.GeoPoint;

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.MapView;

import com.baidu.mapapi.PoiOverlay;



public class MainActivity extends MapActivity {



    private MapView mapView;

    private BMapManager bMapManager;

    private String keyString = "43D220AAB0DEC976D2EABC83CFC9EEE52BCCCA7A";

    private MKSearch mkSearch;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



        bMapManager = new BMapManager(MainActivity.this);

        bMapManager.init(keyString, new MKGeneralListener() {

            @Override

            public void onGetPermissionState(int arg0) {

                // TODO Auto-generated method stub

            }



            @Override

            public void onGetNetworkState(int arg0) {

                // TODO Auto-generated method stub

                if (arg0 == 300) {

                    Toast.makeText(MainActivity.this, "输入的key有误，请核实！", 1)

                            .show();

                }

            }

        });

        initMapActivity(bMapManager);    //初始化地图引擎

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

        mkSearch = new MKSearch();

        mkSearch.init(bMapManager, new MySearchListener());



        // 关键词，中心点，范围半径

        mkSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6),

                (int) (116.404 * 1E6)), 5000);

    }



    private class MySearchListener implements MKSearchListener {



        @Override

        public void onGetAddrResult(MKAddrInfo arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetPoiDetailSearchResult(int arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetPoiResult(MKPoiResult result, int type, int isError) {

            // TODO Auto-generated method stub

            if(result == null){

                return;

            }

            PoiOverlay poiOverlay = new PoiOverlay(MainActivity.this, mapView);

            poiOverlay.setData(result.getAllPoi());

            mapView.getOverlays().add(poiOverlay);

            mapView.invalidate();

        }



        @Override

        public void onGetRGCShareUrlResult(String arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }



        @Override

        public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {

            // TODO Auto-generated method stub



        }

    }



    @Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        if (bMapManager != null) {

            bMapManager.destroy();

            bMapManager = null;

        }

    }



    @Override

    protected void onResume() {

        // TODO Auto-generated method stub

        super.onResume();

        if (bMapManager != null) {

            bMapManager.start();

        }

    }



    @Override

    protected void onPause() {

        // TODO Auto-generated method stub

        super.onPause();

        if (bMapManager != null) {

            bMapManager.stop();

        }

    }



    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }



    @Override

    protected boolean isRouteDisplayed() {

        // TODO Auto-generated method stub

        return false;

    }



}

运行结果：