百度地图的定位demo

先去开发平台创建应用 需要签名   并且包名要和自己的工程的包名一致

首先导入jar包

XML布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <RelativeLayout        android:id="@+id/re_location"        android:layout_width="150dp"        android:layout_height="100dp"        android:background="#ffffff">        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="20dp"            android:text="定位"/>        <TextView            android:id="@+id/tv_location"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text=""            android:layout_alignParentRight="true"            android:layout_alignParentBottom="true"            android:layout_marginRight="20dp"            android:layout_marginBottom="20dp"/>    </RelativeLayout>    <RelativeLayout        android:id="@+id/re_clear"        android:layout_width="150dp"        android:layout_height="100dp"        android:layout_alignParentRight="true"        android:background="#ffffff">        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="20dp"            android:text="清楚缓存"/>        <TextView            android:id="@+id/tv_cache"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="234K"            android:layout_alignParentRight="true"            android:layout_alignParentBottom="true"            android:layout_marginRight="20dp"            android:layout_marginBottom="20dp"/>    </RelativeLayout>    <com.baidu.mapapi.map.MapView        android:id="@+id/bmapView"        android:layout_marginTop="100dp"        android:layout_below="@+id/tv_cache"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:clickable="true"        android:visibility="visible"/></RelativeLayout>

清单文件的权限

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.baway.yuekao4">    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>    <uses-permission android:name="android.permission.INTERNET"/>    <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />    <uses-permission android:name="android.permission.WAKE_LOCK"/>    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />    <uses-permission android:name="android.permission.GET_TASKS" />    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission android:name="android.permission.WRITE_SETTINGS" />    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <meta-data            android:name="com.baidu.lbsapi.API_KEY"            android:value="IXGB669bwOiyWVy23bHpxYI7Bonmw5Uk" />        <activity android:name="yuekao4.baway.MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote">        </service>    </application></manifest>MainActivity
package yuekao4.baway;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.RelativeLayout;import android.widget.TextView;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.MapStatus;import com.baidu.mapapi.map.MapStatusUpdateFactory;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.MyLocationData;import com.baidu.mapapi.model.LatLng;import com.baway.yuekao4.R;import java.util.List;public class MainActivity extends AppCompatActivity {    private RelativeLayout re_clear;    private RelativeLayout re_location;    private TextView tv_location;    private TextView tv_cache;    private int page=1;    private MapView mMapView;    private BaiduMap baiduMap;    private LocationClient mLocationClient = null;    private BDLocationListener myListener = new MyLocationListener();    private boolean isFirstLoc = true;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        SDKInitializer.initialize(getApplicationContext());        setContentView(R.layout.activity_main);        initView();        re_location.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //获取地图                baiduMap = mMapView.getMap();                //开启定位图层                baiduMap.setMyLocationEnabled(true);                tv_location = (TextView) findViewById(R.id.tv_location);                //初始化定位对象  声明LocationClient类                mLocationClient = new LocationClient(getApplicationContext());                //注册监听函数                mLocationClient.registerLocationListener(myListener);                initLocation();                mLocationClient.start();            }        });    }    private void initView() {        re_clear = (RelativeLayout) findViewById(R.id.re_clear);        re_location = (RelativeLayout) findViewById(R.id.re_location);        tv_location = (TextView) findViewById(R.id.tv_location);        tv_cache = (TextView) findViewById(R.id.tv_cache);        mMapView = (MapView) findViewById(R.id.bmapView);    }    @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();    }    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 = 1000;        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1S/1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);    }    public class MyLocationListener implements BDLocationListener {        @Override        public void onReceiveLocation(BDLocation location) {            //获取定位结果            StringBuffer sb = new StringBuffer(256);            sb.append("time : ");            sb.append(location.getTime());    //获取定位时间            sb.append("\nerror code : ");            sb.append(location.getLocType());    //获取类型类型            sb.append("\nlatitude : ");            sb.append(location.getLatitude());    //获取纬度信息            sb.append("\nlontitude : ");            sb.append(location.getLongitude());    //获取经度信息            sb.append("\nradius : ");            sb.append(location.getRadius());    //获取定位精准度//---------------------将地图跟定位关联起来----------------------------------------            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();            // 设置定位数据            baiduMap.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);                baiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));            }//---------------------将地图跟定位关联起来----------------------------------------            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());    //获取卫星数                sb.append("\nheight : ");                sb.append(location.getAltitude());    //获取海拔高度信息，单位米                sb.append("\ndirection : ");                sb.append(location.getDirection());    //获取方向信息，单位度                sb.append("\naddr : ");                sb.append(location.getAddrStr());    //获取地址信息                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());    //获取地址信息                sb.append("\noperationers : ");                sb.append(location.getOperators());    //获取运营商信息                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            final 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());                }            }            //此方法运行在子线程            runOnUiThread(new Runnable() {                @Override                public void run() {                    tv_location.setText(list.get(2).getName());                }            });            Log.i("BaiduLocationApiDem", sb.toString() + ",目前位置：" + list.get(2).getName());        }        @Override        public void onConnectHotSpotMessage(String s, int i) {        }    }}