android如何实现百度定位

//布局文件

    <com.baidu.mapapi.map.MapView
            android:id="@+id/bmapView"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:clickable="true" />

package com.example.fragment;

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.BaiduMap.OnMapClickListener;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.MapPoi;
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.MyLocationConfiguration.LocationMode;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.search.route.RoutePlanSearch;
import com.example.runningman.R;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

/** * * 帮我买页面,该页面加载一个FrameLayout布局和tabhost，点击tabhost中的选项 * 展示相对应的页面， * @author 浅议爱 *该页面实现百度地图定位 */
public class BuyFragment extends Fragment {

    //定义控件
    MapView mMapView = null; 
    // 定位相关
    LocationClient mLocClient;
    //配置定位图层显示方式
    private LocationMode mCurrentMode;
    BitmapDescriptor mCurrentMarker;
    //定义 BaiduMap 地图对象的操作方法与接口
    BaiduMap mBaiduMap;
    boolean isFirstLoc = true; // 是否首次定位
    public MyLocationListenner myListener = new MyLocationListenner();


    private TextView tv_map;

    @Override
    public View onCreateView(LayoutInflater inflater,
            @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        SDKInitializer.initialize(getActivity().getApplicationContext()); 
        View view=LayoutInflater.from(getActivity()).inflate(R.layout.buyfragment, null);

           mMapView = (MapView)view. findViewById(R.id.bmapView);
//         tv_map=(TextView) view.findViewById(R.id.map_tv);
           // 定位初始化
            mLocClient = new LocationClient(getActivity());
            mLocClient.registerLocationListener(myListener);
            mBaiduMap=mMapView.getMap();
            // 开启定位图层
            mBaiduMap.setMyLocationEnabled(true);

            mCurrentMode = LocationMode.NORMAL;
            mCurrentMarker = BitmapDescriptorFactory.fromResource(R.drawable.icon_geo);
            mBaiduMap.setMyLocationConfigeration(new MyLocationConfiguration(
                    mCurrentMode, true, mCurrentMarker));
            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(); 
            return view;


    }

      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;
                }
//              tv_map.setText("[我的位置]\n" + location.getStreet());
                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()));
                }
            }

            public void onReceivePoi(BDLocation poiLocation) {
            }
        }



}

//配置文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.runningman" android:versionCode="1" android:versionName="1.0" >

    <uses-sdk  android:minSdkVersion="14" android:targetSdkVersion="14" />
  <!-- 这个权限用于进行网络定位-->
        <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
        <!-- 这个权限用于访问GPS定位-->
        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
        <!-- 用于访问wifi网络信息，wifi信息会用于进行网络定位-->
        <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
        <!-- 获取运营商信息，用于支持提供运营商信息相关的接口-->
        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
        <!-- 这个权限用于获取wifi的获取权限，wifi信息会用来进行网络定位-->
        <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
        <!-- 用于读取手机当前的状态-->
        <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
        <!-- 写入扩展存储，向扩展卡写入数据，用于写入离线定位数据-->
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
        <!-- 访问网络，网络定位需要上网-->
        <uses-permission android:name="android.permission.INTERNET" />
        <!-- SD卡读取权限，用户写入离线定位数据-->
        <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>


    <application  android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" >
        <activity  android:name=".MainActivity" android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

          <activity  android:name=".CityActivity" android:label="@string/app_name" >
        </activity>


      <meta-data android:name="com.baidu.lbsapi.API_KEY" android:value="L3DDL8oKCrO61zTxOXPXEX3wHfkLunZb" />  


        <service  android:name="com.baidu.location.f" android:enabled="true" android:process=":remote" >
        </service>
    </application>

</manifest>