定位KC10880109-i19使用百度地图API实现实时定位服务概要

使用百度地图AP I实现实时定位服务

第一步下载用到的开发包。

到 百 度地 图 API 网 站 http://developer.baidu.com/map/ 中 下 载libBMapApiEngine_v1_3_4. so、 liblocSDK_2.4. so以及jar文件baidumapapi. jar 地图API、 locSDK_2.6. jar 定位服务jar包此处用2.6版本在新建工程目录中的libs文件夹下新建一个文件夹命名为armeabi并把下载下来的libBMapApiEngine_v1_3_4. so、liblocSDK_2.4. so两个so文件放入其中再把baidumapapi. jar、locSDK_2.6. jar放入libs目录下右键选择每个jar文件选择Build Path-->Add to Build Path完成添加。

第二步配置AndroidManifest.xml文件。

权限配置

[mw_shl_code=java, true] <!--百度定位服务权限-->

<permissionandroid:name="android.permission.BAIDU_LOCATION_SERVICE"></permission>

<uses-permissionandroid:name="android.permission.BAIDU_LOCATION_SERVICE"></uses-permission>

<uses-permissionandroid:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>

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

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

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

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

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

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

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

<uses-permissionandroid:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>

<uses-permissionandroid:name="android.permission.READ_LOGS"></uses-permission>[/mw_shl_code]

[mw_shl_code=java, true] <!--百度地图API权限-->

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

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

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

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

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

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

<uses-permissionandroid:name="android.permission.READ_PHONE_STATE"></uses-permission>[/mw_shl_code]

在application节点中加入定位Service组件

[mw_shl_code=java, true] <!--百度定位服务-->

<serviceandroid:name="com.baidu. location.f"android:enabled="true"android:permission="android.permission.BAIDU_LOCATION_SERVICE"android:process=":remote" >

<intent-filter>

<action android:name="com.baidu. location. service_v2.6" >

</action>

</intent-filter>

</service>[/mw_shl_code]

最后添加地图屏幕支持

[mw_shl_code=java, true] <supports-screens android: largeScreens="true"android:normalScreens="true" android:smallScreens="true"android:resizeable="true" android:anyDensity="true"/>[/mw_shl_code]

第三步编写布局文件在布局文件中添加百度地图的MapView。

[mw_shl_code=java, true]<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android: layout_width="match_parent"android: layout_height="match_parent"android:orientation="vertical" >

<Buttonandroid: id="@+id/lbs_btn"android: layout_width="wrap_content"android: layout_height="wrap_content"android:text="请求定位" />

<TextView

android: id="@+id/lbs_detail_tv"android: layout_width="wrap_content"android: layout_height="wrap_content"android:text="当前位置. . . " />

<com.baidu.mapapi.MapViewandroid: id="@+id/bmapsView"android: layout_width="fill_parent"android: layout_height="fill_parent"android:clickable="true" />

</LinearLayout>[/mw_shl_code]

第四步创建一个主Activity继承MapActivity。

[mw_shl_code=java, true]package com.example. lbsdemo;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;import com.baidu. location.BDLocation;import com.baidu. location.BDLocationListener;import com.baidu.mapapi.MapActivity;import com.baidu.mapapi.MapView;public class MainActivity extends MapActivity implements OnClickListener{private TextView mLbsTextView;private TextView mPioTextView;private MapView mMapView;private LBSLocationClientController mLocationClientController;private LBSMapController mLbsMapController;

@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState) ;setContentView(R. layout.main) ;

initializeButtons() ;initializeTextViews() ;initializeLocationClientController() ; //初始化定位客户端控制器initializeBMapView() ;initializeLBSMapController() ; //初始化定位地图控制器

}private void initializeLBSMapController() {mLbsMapController = new LBSMapController(this, mMapView) ;mLbsMapController. setZoomValue(12) ; //设置地图放大比例mLbsMapController.enableMyLocation() ; //启动我的当前位置mLbsMapController.enableCompass() ; //启用指南针

}private void initializeLocationClientController() {mLocationClientController=new LBSLocationClientController(this,new MyBDLocationListener() ) ;mLocationClientController. initializeLocationClientOption() ;

//初始化定位选项可调节

}private void initializeBMapView() {mMapView = (MapView) f indViewById(R. id.bmapsView) ;mMapView. setBuiltInZoomControls(true) ;//设置启用内置的缩放控件

}private void initializeTextViews() {mLbsTextView = (TextView) findViewById(R. id. lbs_detail_tv) ;

}private void initializeButtons() {

( (Button) findViewById(R. id. lbs_btn) ) . setOnClickListener(this) ;

}

@Overrideprotected void onResume() {super.onResume() ;mLocationClientController. startLocationClient() ;mLbsMapController. startBMapManager() ;

}

@Overrideprotected void onPause() {super.onPause() ;mLocationClientController. stopLocationClient() ;mLbsMapController. stopBMapManager() ;

}

@Overrideprotected void onDestroy() {super.onDestroy() ;mLbsMapController.destroyBMapManager() ;

}private class MyBDLocationListener implements BDLocationListener{

@Overridepublic void onReceiveLocation(BDLocation location) {

Log. i ("onReceiveLocation", "onReceiveLocation") ;if(location == null) return;mLbsMapController.resetCurrentCenter(location) ;//刷新地图

StringBuffer loactionSb =mLocationClientController.buildLocationStringBuffer(location) ;mLbsTextView. setText(loactionSb. toString() ) ;

}

@Overridepublic void onReceivePoi (BDLocation poiLocation) {if (poiLocation == null) return;

StringBuffer loactionSb =mLocationClientController.buildPIOStringBuffer(poiLocation) ;mPioTextView. setText(loactionSb. toString() ) ;

}

}

@Overrideprotected boolean isRouteDisplayed() {return false;

}

@Overridepublic void onClick(View v) {

switch (v.getId() ) {case R. id. lbs_btn:mLocationClientController.requestLocationInformation() ;break;default:break;

}

}

}

[/mw_shl_code]

第五步编写整合移动定位控制器类LBSLocationClientController 该类整合与定位相关数据和方法。

[mw_shl_code=java, true]package com.example. lbsdemo;import android.content.Context;import android.util.Log;import com.baidu. location.BDLocation;import com.baidu. location.BDLocationListener;import com.baidu. location.LocationClient;import com.baidu. location.LocationClientOption;public class LBSLocationClientController {private LocationClient mLocationClient;public LBSLocationClientController(

Context context, BDLocationListener listener) {initializeLocationClient(context, listener) ;

}private void initializeLocationClient(

Context context,BDLocationListener listener) {mLocationClient = new LocationClient(context) ;mLocationClient.registerLocationListener(listener) ;

}private boolean isLocationClientPrepared() {return mLocationClient != null &&

mLocationClient. isStarted() ;

}public void setLocationOption(LocationClientOption option) {mLocationClient. setLocOption(option) ;

}public void startLocationClient() {if(mLocationClient != null) {mLocationClient. start() ;

}

}public void stopLocationClient() {if(mLocationClient != null) {mLocationClient. stop() ;

}

}public void requestPIOInformation() {if(isLocationClientPrepared() ) {

Log. i ("requestPoi", "requestPoi") ;mLocationClient.requestPoi () ;

}

}public void requestLocationInformation() {if(isLocationClientPrepared() ) {

Log. i ("requestLocation", "requestLocation") ;mLocationClient.requestLocation() ;

}

}public StringBuffer buildLocationStringBuffer(BDLocation location) {StringBuffer sb = new StringBuffer(256) ;sb.append("time : ") ;sb.append(location.getTime() ) ;sb.append("\nerror code : ") ;sb.append(location.getLocType() ) ;sb.append("\nlatitude : ") ;sb.append(location.getLatitude() ) ;sb.append("\nlontitude : ") ;

sb.append(location.getLongitude() ) ;sb.append("\nradius : ") ;sb.append(location.getRadius() ) ;if (location.getLocType() == BDLocation.TypeGpsLocation) {sb.append("\nspeed : ") ;sb.append(location.getSpeed() ) ;sb.append("\nsatellite : ") ;sb.append(location.getSatelliteNumber() ) ;

} else if (location.getLocType() ==BDLocation.TypeNetWorkLocation) {sb.append("\naddr : ") ;sb.append(location.getAddrStr() ) ;

}return sb;

}public StringBuffer buildPIOStringBuffer(BDLocation poiLocation) {

StringBuffer sb = new StringBuffer(256) ;sb.append("Poi time : ") ;sb.append(poiLocation.getTime() ) ;sb.append("\nerror code : ") ;sb.append(poiLocation.getLocType() ) ;sb.append("\nlatitude : ") ;sb.append(poiLocation.getLatitude() ) ;sb.append("\nlontitude : ") ;sb.append(poiLocation.getLongitude() ) ;sb.append("\nradius : ") ;sb.append(poiLocation.getRadius() ) ;if (poiLocation.getLocType() ==BDLocation.TypeNetWorkLocation) {sb.append("\naddr : ") ;sb.append(poiLocation.getAddrStr() ) ;

}if(poiLocation.hasPoi () ) {sb.append("\nPoi:") ;sb.append(poiLocation.getPoi () ) ;

}else{sb.append("noPoi information") ;

}return sb;

}public void initializeLocationClientOption() {

LocationClientOption option=new LocationClientOption() ;option. setOpenGps(true) ;//开启GPSoption. setAddrType("detail") ;option. setCoorType("gcj02") ;option. setScanSpan(5000) ;option.disableCache(true) ;//禁止启用缓存定位option. setPoiNumber(5) ; //最多返回POI个数option. setPoiDistance(1000) ; //poi查询距离option. setPoiExtraInfo(true) ; //是否需要POI的电话和地址等详细信息setLocationOption(option) ;

}

}

[/mw_shl_code]

第六步编写整合地图显示控制器类LBSMapController该类整合地图显示相关操作。

这里用到的一个mapKeyString需要在百度API网站中根据您的工程名称去申请获取。public static final String BAIDU_MAP_API_KEY ="9996D9FE77258DC796FCF6B0F06B4FEF8517EF5A"

需要替换成您自己申请到的key。

[mw_shl_code=java, true]package com.example. lbsdemo;import android.content.Context;import android.util.Log;import android.widget.Toast;import com.baidu. location.BDLocation;import com.baidu.mapapi.BMapManager;import com.baidu.mapapi.GeoPoint;import com.baidu.mapapi.MKGeneralListener;import com.baidu.mapapi.MapController;import com.baidu.mapapi.MapView;import com.baidu.mapapi.MyLocationOverlay;public class LBSMapController {public static final String BAIDU_MAP_API_KEY =

"9996D9FE77258DC796FCF6B0F06B4FEF8517EF5A";//需要替换成你的keyprivate Context mContext;private MapView mMapView;