在下载页面下载最新的库文件。
http://developer.baidu.com/map/geosdk-android-download.htm
将liblocSDK2.4.so文件拷贝到libs/armeabi目录下。将locSDK2.6.jar文件拷贝 到工程根目录下,并在工程属性->Java Build Path->Libraries中选择“Add JARs”,选定locSDK2.6.jar,确定后返回。这样您就可以在程序中使用百度定位SDK了。
为区分旧版本service,需要将manifest file中的 intent filter声明为com.baidu.location.service_v2.6 在application标签中声明service组件。
- <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote"
- android:permission="android.permission.BAIDU_LOCATION_SERVICE">
- <intent-filter>
- <action android:name="com.baidu.location.service_v2.6"></action>
- </intent-filter>
- </service>
声明使用权限
- <permission android:name="android.permission.BAIDU_LOCATION_SERVICE"></permission>
- <uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE"></uses-permission>
- <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
- <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
- <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
- <uses-permission android:name="android.permission.ACCESS_NETWORK_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.WRITE_EXTERNAL_STORAGE"></uses-permission>
- <uses-permission android:name="android.permission.INTERNET" />
- <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>
- <uses-permission android:name="android.permission.READ_LOGS"></uses-permission>
- import com.baidu.location.BDLocation;
- import com.baidu.location.BDLocationListener;
- import com.baidu.location.LocationClient;
- import com.baidu.location.LocationClientOption;
- import com.baidu.location.BDNotifyListener;//假如用到位置提醒功能,需要import该类
此处需要注意:LocationClient类必须在主线程中声明。需要Context类型的参数。
- public LocationClient mLocationClient = null;
- public BDLocationListener myListener = new MyLocationListener();
- public void onCreate() {
- mLocationClient = new LocationClient(this); //声明LocationClient类
- mLocationClient.registerLocationListener( myListener ); //注册监听函数
- }
BDLocationListener接口有2个方法需要实现: 1.接收异步返回的定位结果,参数是BDLocation类型参数。 2.接收异步返回的POI查询结果,参数是BDLocation类型参数。
- public class MyLocationListenner implements BDLocationListener {
- @Override
- public void onReceiveLocation(BDLocation location) {
- if (location == null)
- return ;
- 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());
- }
- logMsg(sb.toString());
- }
- public void onReceivePoi(BDLocation poiLocation) {
- if (poiLocation == null){
- return ;
- }
- 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");
- }
- logMsg(sb.toString());
- }
- }
设置定位参数包括:定位模式(单次定位,定时定位),返回坐标类型,是否打开GPS等等。eg:
- LocationClientOption option = new LocationClientOption();
- option.setOpenGps(true);
- option.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
- mLocClient.setLocOption(option);
发起定位请求。请求过程是异步的,定位结果在上面的监听函数onReceiveLocation中获取。
- if (mLocClient != null && mLocClient.isStarted())
- mLocClient.requestLocation();
- else
- Log.d("LocSDK_2.0_Demo1", "locClient is null or not started");
发起POI查询请求。请求过程是异步的,定位结果在上面的监听函数onReceivePoi中获取。
- if (mLocClient != null && mLocClient.isStarted())
- mLocClient.requestPoi();
位置提醒最多提醒3次,3次过后将不再提醒。 假如需要再次提醒,或者要修改提醒点坐标,都可通过函数SetNotifyLocation()来实现。
- //位置提醒相关代码
- mNotifyer = new NotifyLister();
- mNotifyer.SetNotifyLocation(42.03249652949337,113.3129895882556,3000,"gps");//4个参数代表要位置提醒的点的坐标,具体含义依次为:纬度,经度,距离范围,坐标系类型(gcj02,gps,bd09,bd09ll)
- mLocationClient.registerNotify(mNotifyer);
- //注册位置提醒监听事件后,可以通过SetNotifyLocation 来修改位置提醒设置,修改后立刻生效。
- //BDNotifyListner实现
- public class NotifyLister extends BDNotifyListener{
- public void onNotify(BDLocation mlocation, float distance){
- mVibrator01.vibrate(1000);//振动提醒已到设定位置附近
- }
- }
- //取消位置提醒
- mLocationClient.removeNotifyEvent(mNotifyer);