百度定位

MapView mMapView ;
    private BaiduMap mBaiduMap;
    boolean isFirstLoc = true; // 是否首次定位
    // 定位相关
    LocationClient mLocClient;
    public MyLocationListenner myListener = new MyLocationListenner();
    private Button bt;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_bai_du);

        mMapView = (MapView) findViewById(R.id.bmapView);
        mBaiduMap = mMapView.getMap();
        bt = (Button) findViewById(R.id.kk);
        bt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });
////定义Maker坐标点
//        LatLng point = new LatLng(39.963175, 116.400244);
//        //构建Marker图标
//        BitmapDescriptor bitmap = BitmapDescriptorFactory
//                .fromResource(R.drawable.icon_hidden);
//        //构建MarkerOption，用于在地图上添加Marker
//        OverlayOptions option1 = new MarkerOptions()
//                .position(point)
//                .icon(bitmap);
//        //在地图上添加Marker，并显示
//        mBaiduMap.addOverlay(option1);
        //定位
        // 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.setIsNeedAddress(true);//设置获得地址位置
        option.setIsNeedLocationPoiList(true);//设置获得poi
        option.setOpenGps(true); // 打开gps
        option.setCoorType("bd09ll"); // 设置坐标类型
        option.setScanSpan(1000);
        mLocClient.setLocOption(option);
        mLocClient.start();
    }
    /**
     * 定位SDK监听函数
     */
    public class MyLocationListenner implements BDLocationListener {
        @Override
        public void onReceiveLocation(BDLocation location) {
            String str = "定位的信息："+location.getAddress().address+",纬度："
                    +location.getLatitude();
            List l = location.getPoiList();
            str += "，poi数量:"+l.size()+",第一个："+((Poi)(l.get(0))).getName();
            Log.i("TAG", str);

            // 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(5).latitude(location.getLatitude())
                    .longitude(location.getLongitude()).build();
            mBaiduMap.setMyLocationData(locData);
            String city = location.getCity();//得到城市
            String district = location.getDistrict();//得到区域
            String street = location.getStreet();//得到解答
            String streetNumber = location.getStreetNumber();//门牌号
            Log.e("------",city+district+street+streetNumber);
            Intent intent=new Intent();
            intent.putExtra("a",city);
            intent.putExtra("b",district);
            intent.putExtra("c",street);
            setResult(99,intent);
            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();
    }

}