百度地图定位Demo补充

package zjc.bwie.com.baidutext;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
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.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.MapStatusUpdate;
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;


public class MainActivity extends Activity {
    public MapView mMapView = null;
    public LocationClient mLocationClient = null;
    public MyLocationListenner myListener = new MyLocationListenner();
    public BaiduMap mMapViewMap;
    boolean isFirstLoc = true; // 是否首次定位
    //每次定位后，获取经纬度
    private double X;
    private double Y;
    //自定义定位图标
    private BitmapDescriptor myiconLoaction;
    //实例化传感器对象
    private MyorientationListener myorientationListener;
    //记录传感器的x坐标
    private float CurrentX;
    //模式变量
    private MyLocationConfiguration.LocationMode locationmode = MyLocationConfiguration.LocationMode.NORMAL;
    ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        //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 = (MapView) findViewById(R.id.bmapView);
        mMapViewMap = mMapView.getMap();
        //设置页面比例
        MapStatusUpdate mapStatusUpdate = MapStatusUpdateFactory.zoomTo(20.0f);
        mMapViewMap.setMapStatus(mapStatusUpdate);
        //定位功能
        makePosition();

    }

    @Override
    protected void onStart() {
        //设置定位允许
        mMapViewMap.setMyLocationEnabled(true);
        //开启定位
        if (!mLocationClient.isStarted()) {
            mLocationClient.start();
        }
        //开启方向传感器
        myorientationListener.start();
        super.onStart();
    }

    @Override
    protected void onStop() {
        //停止定位
        mMapViewMap.setMyLocationEnabled(false);
        mLocationClient.stop();
        //关闭方向传感器
        myorientationListener.stop();
        super.onStop();
    }

    public void makePosition() {
        // 开启定位图层
        mMapViewMap.setMyLocationEnabled(true);
        mMapViewMap
                .setMyLocationConfigeration(new MyLocationConfiguration(
                        locationmode, true, null));
        mLocationClient = new LocationClient(this);
        mLocationClient.registerLocationListener(myListener);
        LocationClientOption option = new LocationClientOption();
        option.setOpenGps(true); // 打开gps
        option.setIsNeedAddress(true);//可以帮助我们获取当前的地址
        option.setCoorType("bd09ll"); // 设置坐标类型
        option.setScanSpan(1000);
        mLocationClient.setLocOption(option);
        //初始化图标
        myiconLoaction = BitmapDescriptorFactory.fromResource(R.mipmap.navi_map_gps_locked);
        //实例化传感器对象
        myorientationListener = new MyorientationListener(this);
        myorientationListener.setOnorientationListener(new MyorientationListener.OnorientationListener() {
            @Override
            public void onOreationChanged(float x) {
                CurrentX = x;
            }
        });


    }

    /**
     * 设置Menu菜单的布局
     *
     * @param menu
     * @return
     */
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        //设定自定义布局
        getMenuInflater().inflate(R.menu.menu_layout, menu);
        return true;
    }

    /**
     * Menu菜单按钮的点击事件
     *
     * @param item
     * @return
     */
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.comment://切换普通地图状态
                mMapViewMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
                break;
            case R.id.site://切换卫星地图
                mMapViewMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
                break;
            case R.id.traffic://切换实时交通地图
                if (mMapViewMap.isTrafficEnabled()) {
                    mMapViewMap.setTrafficEnabled(false);
                } else {
                    mMapViewMap.setTrafficEnabled(true);
                }
                break;
            case R.id.myPosition:
                //定位当前位置
                madePosition();
                break;

            case R.id.model_comment:
                locationmode = MyLocationConfiguration.LocationMode.NORMAL;
                break;
            case R.id.model_fllow://跟随模式
                locationmode = MyLocationConfiguration.LocationMode.FOLLOWING;
                break;
            case R.id.model_luopan://罗盘模式
                locationmode = MyLocationConfiguration.LocationMode.COMPASS;
                break;


        }
        return super.onOptionsItemSelected(item);
    }

    public void madePosition() {
        LatLng ll = new LatLng(X,
                Y);
        MapStatus.Builder builder = new MapStatus.Builder();
        builder.target(ll).zoom(18.0f);
        mMapViewMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));
    }

    @Override
    protected void onDestroy() {
        // 退出时销毁定位
        mLocationClient.stop();
        // 关闭定位图层
        mMapViewMap.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;
        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();
    }

    /**
     * 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
                    .direction(CurrentX)
                    .latitude(location.getLatitude())
                    .longitude(location.getLongitude()).build();
            mMapViewMap.setMyLocationData(locData);
            //设置自定义的图标,这里使用的是自定义的图标
            MyLocationConfiguration configuration = new MyLocationConfiguration(locationmode, true, myiconLoaction);
            mMapViewMap.setMyLocationConfigeration(configuration);
            //更新，并记录当前的经纬度
            X = location.getLatitude();
            Y = location.getLongitude();
            if (isFirstLoc) {
                isFirstLoc = false;
                LatLng ll = new LatLng(location.getLatitude(),
                        location.getLongitude());
                MapStatus.Builder builder = new MapStatus.Builder();
                builder.target(ll).zoom(18.0f);
                mMapViewMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));
                //吐司当前的位置信息
                Toast.makeText(MainActivity.this, location.getAddrStr(), Toast.LENGTH_SHORT).show();
            }
        }

        public void onReceivePoi(BDLocation poiLocation) {
        }
    }

<strong><span style="font-size:24px;">补充Demo下载地址 ：http://download.youkuaiyun.com/detail/dm_jc/9585160</span></strong>