百度地图定位

定位

package com.hl.bdmap;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.widget.TextView;import com.baidu.location.BDLocation;import com.baidu.location.BDLocationListener;import com.baidu.location.LocationClient;import com.baidu.location.LocationClientOption;import com.baidu.location.Poi;import com.baidu.mapapi.SDKInitializer;import com.baidu.mapapi.map.BaiduMap;import com.baidu.mapapi.map.BitmapDescriptor;import com.baidu.mapapi.map.BitmapDescriptorFactory;import com.baidu.mapapi.map.MapStatus;import com.baidu.mapapi.map.MapStatusUpdateFactory;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.MarkerOptions;import com.baidu.mapapi.map.MyLocationConfiguration;import com.baidu.mapapi.map.MyLocationData;import com.baidu.mapapi.map.OverlayOptions;import com.baidu.mapapi.map.TextureMapView;import com.baidu.mapapi.model.LatLng;import java.util.List;public class MainActivity extends Activity implements BDLocationListener{    private TextureMapView mMapView;    public LocationClient mLocationClient = null;    private TextView tv_info;    private TextView tv_infos;    private BaiduMap baiduMap;    private StringBuffer sbff;    boolean isFirstLoc = true; // 是否首次定位    // 定位相关    LocationClient mLocClient;    public MyLocationListenner myListener = new MyLocationListenner();    private MyLocationConfiguration.LocationMode mCurrentMode;    BitmapDescriptor mCurrentMarker;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //在使用SDK各组件之前初始化context信息，传入ApplicationContext        //注意该方法要再setContentView方法之前实现        SDKInitializer.initialize(getApplicationContext());        setContentView(R.layout.activity_main);        //获取地图控件引用        mMapView = (TextureMapView) findViewById(R.id.bmapView);        tv_info = (TextView) findViewById(R.id.tv_info);        tv_infos = (TextView) findViewById(R.id.tv_infos);        baiduMap = mMapView.getMap();        baiduMap.setTrafficEnabled(true);        mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类        mLocationClient.registerLocationListener( this );    //注册监听函数        initLocation();        init();        mLocationClient.start();    }    private void init(){        mCurrentMode = MyLocationConfiguration.LocationMode.NORMAL;        baiduMap                .setMyLocationConfigeration(new MyLocationConfiguration(                        mCurrentMode, true, mCurrentMarker));        // 开启定位图层        baiduMap.setMyLocationEnabled(true);        // 定位初始化        mLocClient = new LocationClient(this);        mLocClient.registerLocationListener(myListener);        LocationClientOption option = new LocationClientOption();        option.setOpenGps(true); // 打开gps        option.setCoorType("bd09ll"); // 设置坐标类型        option.setScanSpan(1000);        mLocClient.setLocOption(option);        mLocClient.start();    }    /**     * 初始化地位的配置     */    private void initLocation(){        LocationClientOption option = new LocationClientOption();        option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy        );//可选，默认高精度，设置定位模式，高精度，低功耗，仅设备        option.setCoorType("bd09ll");//可选，默认gcj02，设置返回的定位结果坐标系        int span=1000;        option.setScanSpan(span);//可选，默认0，即仅定位一次，设置发起定位请求的间隔需要大于等于1000ms才是有效的        option.setIsNeedAddress(true);//可选，设置是否需要地址信息，默认不需要        option.setOpenGps(true);//可选，默认false,设置是否使用gps        option.setLocationNotify(true);//可选，默认false，设置是否当gps有效时按照1S1次频率输出GPS结果        option.setIsNeedLocationDescribe(true);//可选，默认false，设置是否需要位置语义化结果，可以在BDLocation.getLocationDescribe里得到，结果类似于“在北京天安门附近”        option.setIsNeedLocationPoiList(true);//可选，默认false，设置是否需要POI结果，可以在BDLocation.getPoiList里得到        option.setIgnoreKillProcess(false);//可选，默认true，定位SDK内部是一个SERVICE，并放到了独立进程，设置是否在stop的时候杀死这个进程，默认不杀死        option.SetIgnoreCacheException(false);//可选，默认false，设置是否收集CRASH信息，默认收集        option.setEnableSimulateGps(false);//可选，默认false，设置是否需要过滤gps仿真结果，默认需要        mLocationClient.setLocOption(option);    }    @Override    protected void onDestroy() {        //在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理        mMapView.onDestroy();        mMapView = null;        // 退出时销毁定位        mLocClient.stop();        // 关闭定位图层        baiduMap.setMyLocationEnabled(false);        super.onDestroy();    }    @Override    protected void onResume() {        super.onResume();        //在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理        mMapView.onResume();    }    @Override    protected void onPause() {        super.onPause();        //在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理        mMapView.onPause();    }    @Override    public void onReceiveLocation(BDLocation location) {        //Receive 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) {// GPS定位结果            sb.append("\nspeed : ");            sb.append(location.getSpeed());// 单位：公里每小时            sb.append("\nsatellite : ");            sb.append(location.getSatelliteNumber());            sb.append("\nheight : ");            sb.append(location.getAltitude());// 单位：米            sb.append("\ndirection : ");            sb.append(location.getDirection());// 单位度            sb.append("\naddr : ");            sb.append(location.getAddrStr());            sb.append("\ndescribe : ");            sb.append("gps定位成功");        } else if (location.getLocType() == BDLocation.TypeNetWorkLocation) {// 网络定位结果            sb.append("\naddr : ");            sb.append(location.getAddrStr());            //运营商信息            sb.append("\noperationers : ");            sb.append(location.getOperators());            sb.append("\ndescribe : ");            sb.append("网络定位成功");            mLocationClient.stop();        } else if (location.getLocType() == BDLocation.TypeOffLineLocation) {// 离线定位结果            sb.append("\ndescribe : ");            sb.append("离线定位成功，离线定位结果也是有效的");        } else if (location.getLocType() == BDLocation.TypeServerError) {            sb.append("\ndescribe : ");            sb.append("服务端网络定位失败，可以反馈IMEI号和大体定位时间到[e-mail]，会有人追查原因");        } else if (location.getLocType() == BDLocation.TypeNetWorkException) {            sb.append("\ndescribe : ");            sb.append("网络不同导致定位失败，请检查网络是否通畅");        } else if (location.getLocType() == BDLocation.TypeCriteriaException) {            sb.append("\ndescribe : ");            sb.append("无法获取有效定位依据导致定位失败，一般是由于手机的原因，处于飞行模式下一般会造成这种结果，可以试着重启手机");        }        sb.append("\nlocationdescribe : ");        sb.append(location.getLocationDescribe());// 位置语义化信息        List<Poi> list = location.getPoiList();// POI数据        if (list != null) {            sbff = new StringBuffer();            sb.append("\npoilist size = : ");            sb.append(list.size());            for (Poi p : list) {                sb.append("\npoi= : ");                sb.append(p.getId() + " " + p.getName() + " " + p.getRank());                sbff.append(p.getName() + "\n");            }            tv_infos.setText("您的附近：\n" + sbff.toString());        }        tv_info.setText("当前位置：" + location.getLocationDescribe());        sbff = null;        //定义Maker坐标点//        LatLng point = new LatLng(36.562222, 114.504452);        /*LatLng point = new LatLng(location.getLatitude(), location.getLongitude());        //构建Marker图标        BitmapDescriptor bitmap = BitmapDescriptorFactory                .fromResource(R.mipmap.icon_marka);        //构建MarkerOption，用于在地图上添加Marker        OverlayOptions option = new MarkerOptions()                .position(point)                .icon(bitmap);        //在地图上添加Marker，并显示        baiduMap.addOverlay(option);*/        Log.i("BaiduLocationApiDem", sb.toString());    }    /**     * 定位SDK监听函数     */    public class MyLocationListenner implements BDLocationListener {        @Override        public void onReceiveLocation(BDLocation location) {            // map view 销毁后不在处理新接收的位置            if (location == null || mMapView == null) {                return;            }            MyLocationData locData = new MyLocationData.Builder()                    .accuracy(location.getRadius())                    // 此处设置开发者获取到的方向信息，顺时针0-360                    .direction(100).latitude(location.getLatitude())                    .longitude(location.getLongitude()).build();            baiduMap.setMyLocationData(locData);            if (isFirstLoc) {                isFirstLoc = false;                LatLng ll = new LatLng(location.getLatitude(),                        location.getLongitude());                MapStatus.Builder builder = new MapStatus.Builder();                builder.target(ll).zoom(18.0f);                baiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));            }        }        public void onReceivePoi(BDLocation poiLocation) {        }    }}