Android(安卓)利用百度地图SDK实现定位功能

SDK使用说明及下载地址：http://developer.baidu.com/map/sdk-android.htm
map.xml:

<?xml version="1.0" encoding="utf-8"?>            android:id="@+id/map_view"        android:layout_width="match_parent"        android:layout_height="200dp"        android:clickable="true" />

Map.java:

public class HouseKeeperSearch extends Activity {private MapView mMapView;private MapController mMapController = null;// 定位相关private LocationClient mLocClient;private LocationData locData = null;public MyLocationListener myListener = new MyLocationListener();boolean isFirstLoc = true;// 是否首次定位private MyLocationOverlay myLocationOverlay = null; // 定点标志private BMapManager mBMapMan = null;private ProgressDialog pd;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    mBMapMan = new BMapManager(getApplication());    mBMapMan.init("Ut5QiVKCvqiXol4Ph6uW3N3h", null);    pd = new ProgressDialog(this);    pd.setIndeterminate(true);    pd.setMessage(getString(R.string.loading_location));    pd.setCancelable(true);    pd.show();    setContentView(R.layout.activity_housekeeper_search);    initMap();}private void initMap() {    // 地图初始化    mMapView = (MapView) findViewById(R.id.map_view);    mMapController = mMapView.getController();    mMapView.getController().setZoom(16);    mMapView.getController().enableClick(true);    mMapView.setBuiltInZoomControls(true);    // 定位初始化    mLocClient = new LocationClient(this);    locData = new LocationData();    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();           //启动    // 定位图层初始化    myLocationOverlay = new MyLocationOverlay(mMapView);    // 设置定位数据    myLocationOverlay.setMarker(getResources().getDrawable(            R.drawable.location));    // 添加定位图层    mMapView.getOverlays().add(myLocationOverlay);    myLocationOverlay.enableCompass();    // 修改定位数据后刷新图层生效    mMapView.refresh();       //加载}/** * 定位SDK监听函数 */public class MyLocationListener implements BDLocationListener {    @Override    public void onReceiveLocation(BDLocation location) {        if (location == null)            return;        locData.latitude = location.getLatitude();        locData.longitude = location.getLongitude();        // 如果不显示定位精度圈，将accuracy赋值为0即可        locData.accuracy = location.getRadius();        // 此处可以设置 locData的方向信息, 如果定位 SDK 未返回方向信息，用户可以自己实现罗盘功能添加方向信息。        locData.direction = location.getDerect();        myLocationOverlay.setData(locData);        // 更新图层数据执行刷新后生效        mMapView.refresh();        // 是手动触发请求或首次定位时，移动到定位点        if (isFirstLoc) {            // 移动地图到定位点            Log.d("LocationOverlay", "receive location, animate to it");            mMapController.animateTo(new GeoPoint(                    (int) (locData.latitude * 1e6),                    (int) (locData.longitude * 1e6)));            if (pd.isShowing())                pd.dismiss();        }        // 首次定位完成        isFirstLoc = false;    }    public void onReceivePoi(BDLocation poiLocation) {        if (poiLocation == null) {            return;        }    }}@Overrideprotected void onPause() {    mMapView.onPause();    if (mBMapMan != null) {        mBMapMan.stop();    }    super.onPause();}@Overrideprotected void onResume() {    mMapView.onResume();    if (mBMapMan != null) {        mBMapMan.start();    }    super.onResume();}@Overrideprotected void onDestroy() {    // 退出时销毁定位    if (mLocClient != null)        mLocClient.stop();    mMapView.destroy();    if (mBMapMan != null) {        mBMapMan.destroy();        mBMapMan = null;    }    super.onDestroy();}@Overrideprotected void onSaveInstanceState(Bundle outState) {    super.onSaveInstanceState(outState);    mMapView.onSaveInstanceState(outState);}@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {    super.onRestoreInstanceState(savedInstanceState);    mMapView.onRestoreInstanceState(savedInstanceState);}

}
效果图：

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