百度地图定位

package com.bw.xiche;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;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.MapStatus;import com.baidu.mapapi.map.MapStatusUpdateFactory;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.MyLocationConfiguration;import com.baidu.mapapi.map.MyLocationData;import com.baidu.mapapi.model.LatLng;import java.util.List;public class Map extends AppCompatActivity {    public LocationClient mLocationClient = null;    public BaiduMap mBaiduMap;    public BDLocationListener myListener = new MyLocationListener();    private MapView mMapView;    // 定位相关    LocationClient mLocClient;    private MyLocationConfiguration.LocationMode mCurrentMode;    BitmapDescriptor mCurrentMarker;    boolean isFirstLoc = true; // 是否首次定位    @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_map);        //获取地图控件引用        mMapView = (MapView) findViewById(R.id.bmapView);        mBaiduMap = mMapView.getMap();        mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类        mLocationClient.registerLocationListener(myListener);    //注册监听函数        mLocationClient.start();        init();    }    private void init() {        mCurrentMode = MyLocationConfiguration.LocationMode.NORMAL;        mCurrentMarker = null;        mBaiduMap                .setMyLocationConfigeration(new MyLocationConfiguration(                        mCurrentMode, true, null));        // 开启定位图层        mBaiduMap.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();    }    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);    }    public class MyLocationListener implements BDLocationListener {        @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");            } 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) {                sb.append("\npoilist size = : ");                sb.append(list.size());                for (Poi p : list) {                    sb.append("\npoi= : ");                    sb.append(p.getId() + " " + p.getName() + " " + p.getRank());                }            }            Log.i("BaiduLocationApiDem", sb.toString());            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();            mBaiduMap.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);                mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));            }        }    }        @Override        protected void onDestroy() {            super.onDestroy();            //在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理            mMapView.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();        }}