百度地图检索、定位

<span style="font-size:14px;">import android.content.Intent;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.Toast;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.MapView;import com.baidu.mapapi.map.Marker;import com.baidu.mapapi.map.MarkerOptions;import com.baidu.mapapi.map.MyLocationConfiguration;import com.baidu.mapapi.map.OverlayOptions;import com.baidu.mapapi.model.LatLng;import com.baidu.mapapi.search.core.SearchResult;import com.baidu.mapapi.search.route.BikingRouteResult;import com.baidu.mapapi.search.route.DrivingRouteResult;import com.baidu.mapapi.search.route.OnGetRoutePlanResultListener;import com.baidu.mapapi.search.route.PlanNode;import com.baidu.mapapi.search.route.RoutePlanSearch;import com.baidu.mapapi.search.route.TransitRoutePlanOption;import com.baidu.mapapi.search.route.TransitRouteResult;import com.baidu.mapapi.search.route.WalkingRouteResult;import java.util.List;public class Baidumap extends AppCompatActivity {    private BaiduMap mBaiduMap;    MapView mMapView = null;    boolean isFirstLoc = true; // 是否首次定位    // 定位相关0p    LocationClient mLocClient;    private MyLocationConfiguration.LocationMode mCurrentMode;    BitmapDescriptor mCurrentMarker;    public LocationClient mLocationClient = null;    public BDLocationListener myListener = new MyLocationListener();    private RoutePlanSearch mSearch;    boolean useDefaultIcon = false;    private Button btn1;    private String name;    private String adr;    @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_baidumap);        Intent intent=getIntent();        adr = intent.getStringExtra("adr");        //获取地图控件引用        btn1= (Button) findViewById(R.id.btn1);        mMapView = (MapView) findViewById(R.id.bmapView);        mBaiduMap = mMapView.getMap();    //普通地图        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);        mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类        mLocationClient.registerLocationListener( myListener );    //注册监听函数        initLocation();        mSearch = RoutePlanSearch.newInstance();        mSearch.setOnGetRoutePlanResultListener(listener);        btn1.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                PlanNode stNode = PlanNode.withCityNameAndPlaceName("北京", name);                PlanNode enNode = PlanNode.withCityNameAndPlaceName("北京", adr);                mSearch.transitSearch((new TransitRoutePlanOption())                        .from(stNode)                        .city("北京")                        .to(enNode));            }        });    }    OnGetRoutePlanResultListener listener = new OnGetRoutePlanResultListener() {        public void onGetWalkingRouteResult(WalkingRouteResult result) {            //        }        public void onGetTransitRouteResult(TransitRouteResult result) {            if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {                Toast.makeText(Baidumap.this, "抱歉，未找到结果", Toast.LENGTH_SHORT).show();            }            if (result.error == SearchResult.ERRORNO.AMBIGUOUS_ROURE_ADDR) {                //起终点或途经点地址有岐义，通过以下接口获取建议查询信息                //result.getSuggestAddrInfo()                return;            }            if (result.error == SearchResult.ERRORNO.NO_ERROR) {                TransitRouteOverlay overlay = new MyTransitRouteOverlay(mBaiduMap);                mBaiduMap.setOnMarkerClickListener(overlay);                overlay.setData(result.getRouteLines().get(0));                overlay.addToMap();                overlay.zoomToSpan();            }        }        public void onGetDrivingRouteResult(DrivingRouteResult result) {            //        }        @Override        public void onGetBikingRouteResult(BikingRouteResult bikingRouteResult) {        }    };    private class MyTransitRouteOverlay extends TransitRouteOverlay {        public MyTransitRouteOverlay(BaiduMap baiduMap) {            super(baiduMap);        }        @Override        public BitmapDescriptor getStartMarker() {            if (useDefaultIcon) {                return BitmapDescriptorFactory.fromResource(R.drawable.icon_st);            }            return null;        }        @Override        public BitmapDescriptor getTerminalMarker() {            if (useDefaultIcon) {                return BitmapDescriptorFactory.fromResource(R.drawable.icon_en);            }            return null;        }    }    public void onReceivePoi(BDLocation poiLocation) {    }    @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();            // 退出时销毁定位            mLocClient.stop();            // 关闭定位图层            mBaiduMap.setMyLocationEnabled(false);            //在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理            mMapView.onDestroy();            mMapView=null;        }    @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();    }    //地图标注    public void getLatLag(Double x ,Double y){        //定义Maker坐标点        LatLng point = new LatLng(x, y);//构建Marker图标        BitmapDescriptor bitmap = BitmapDescriptorFactory                .fromResource(R.drawable.icon_marka);//构建MarkerOption，用于在地图上添加Marker        OverlayOptions option = new MarkerOptions()                .position(point)                .icon(bitmap)                .zIndex(9)  //设置marker所在层级                .draggable(true);  //设置手势拖拽        //在地图上添加Marker，并显示        Marker marker = (Marker) mBaiduMap.addOverlay(option);    }    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=0;        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);        mLocationClient.start();    }    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());            getLatLag(location.getLatitude(),location.getLongitude());            name=list.get(0).getName();        }    }}</span>