android 百度地图GPS定位

一、先在百度地图开发平台获取一个key

http://lbsyun.baidu.com/apiconsole/key/create

SHA1码获得：

填写完成提交后会自动生成一个key，拷贝留用。

二、下载百度地图SDK
http://lbsyun.baidu.com/sdk/download?selected=location_all

下载基础定位和基础地图，解压备用

三、创建过程，工程名字要和第一步填写的包名对应（也可以先创建工程再进行第一步）

1、将第二步下载的SDK包拷贝到过程相关目录

清单文件

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.administrator.baidulbs_test">    <!--需要的权限-->    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission android:name="android.permission.INTERNET"/>    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>    <uses-permission android:name="android.permission.WAKE_LOCK"/>    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <!--需要的name为百度LBS固定格式-->        <!--值为在第一步获取的key-->        <meta-data            android:name="com.baidu.lbsapi.API_KEY"            android:value="VlDpPAL7CHBDgY7IrqkpzsyKCtxhAg8c"            />        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <!--百度导航需要申明的一个服务-->        <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote">        </service>    </application></manifest>

布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:id="@+id/abc"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <com.baidu.mapapi.map.MapView        android:id="@+id/baidu_map"        android:layout_height="match_parent"        android:layout_width="match_parent" /></LinearLayout>

Activity
官方API地址：http://wiki.lbsyun.baidu.com/cms/androidloc/doc/v7.0/index.html

import android.Manifest;import android.content.pm.PackageManager;import android.os.Bundle;import android.support.annotation.NonNull;import android.support.v4.app.ActivityCompat;import android.support.v4.content.ContextCompat;import android.support.v7.app.AppCompatActivity;import android.widget.TextView;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.MapStatusUpdate;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 java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    public LocationClient locationClient;    private TextView textView;    private MapView mapView;    private BaiduMap baiduMap;    private boolean isFirstLocate = true;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        locationClient = new LocationClient(getApplicationContext());        locationClient.registerLocationListener(new MyLocationListener());        SDKInitializer.initialize(getApplicationContext());//要在setContentView调用之前初始化        setContentView(R.layout.activity_main);        mapView = (MapView) findViewById(R.id.baidu_map);        textView = (TextView) findViewById(R.id.abc);        baiduMap = mapView.getMap();//地图总控制台        baiduMap.setMyLocationEnabled(true);        List<String> list = new ArrayList<>();        //运行时权限，没有注册就重新注册        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {            list.add(Manifest.permission.ACCESS_FINE_LOCATION);        }        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {            list.add(Manifest.permission.READ_PHONE_STATE);        }        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {            list.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);        }        if (!list.isEmpty()) {//没有权限就添加            String[] permissions = list.toArray(new String[list.size()]);//如果list不为空，就调用ActivityCompat.requestPermissions添加权限            ActivityCompat.requestPermissions(MainActivity.this, permissions, 1);        } else {//有相关权限则执行程序            requestLocation();        }    }    private void requestLocation() {        init();        locationClient.start();    }    private void init() {        LocationClientOption option = new LocationClientOption();        option.setIsNeedAddress(true);        option.setScanSpan(5000); //设置发起定位请求的间隔时间为5000ms        locationClient.setLocOption(option);    }    private void navigateTo(BDLocation location) {        if (isFirstLocate) {            Toast.makeText(this, "维度：" + location.getLatitude() + "经线：" + location.getLongitude(), Toast.LENGTH_SHORT).show();            LatLng ll = new LatLng(location.getLatitude(), location.getLongitude());//获取当前经纬度并且传递给LatLng            MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(ll);            baiduMap.animateMapStatus(update);//将地图定位更新到当前位置            update = MapStatusUpdateFactory.zoomTo(16f);//地图缩放倍数            baiduMap.animateMapStatus(update);            isFirstLocate = false;        }        MyLocationData.Builder builder = new MyLocationData.Builder();   //将当前位置在地图上标记出来        builder.latitude(location.getLatitude());//传入经纬度        builder.longitude(location.getLongitude());//传入经纬度        MyLocationData locationData = builder.build();        baiduMap.setMyLocationData(locationData);    }    @Override    protected void onResume() {        super.onResume();        mapView.onResume();    }    @Override    protected void onPause() {        super.onPause();        mapView.onPause();    }    @Override    protected void onDestroy() {        super.onDestroy();        locationClient.stop();        mapView.onDestroy();        baiduMap.setMyLocationEnabled(false);    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        switch (requestCode) {            case 1:                if (grantResults.length > 0) {                    for (int result : grantResults) {                        if (result != PackageManager.PERMISSION_GRANTED) {                            Toast.makeText(this, "用户取消权限，程序运行失败", Toast.LENGTH_SHORT).show();                            finish();                            return;                        }                    }                    requestLocation();//调用定位                } else {                    Toast.makeText(this, "发生未知错误", Toast.LENGTH_SHORT).show();                    finish();                }                break;            default:        }    }    public class MyLocationListener implements BDLocationListener {        @Override        public void onReceiveLocation(BDLocation bdLocation) {            {//定位信息获取                StringBuilder currentPosition = new StringBuilder();                currentPosition.append("纬度：").append(bdLocation.getLatitude()).append("\n");                currentPosition.append("经线：").append(bdLocation.getLongitude()).append("\n");                currentPosition.append("国家：").append(bdLocation.getCountry()).append("\n");                currentPosition.append("省：").append(bdLocation.getProvince()).append("\n");                currentPosition.append("市：").append(bdLocation.getCity()).append("\n");                currentPosition.append("区：").append(bdLocation.getDirection()).append("\n");                currentPosition.append("街道：").append(bdLocation.getStreet()).append("\n");                currentPosition.append("定位方式：");                if (bdLocation.getLocType() == BDLocation.TypeGpsLocation) {                    currentPosition.append("GPS");                } else if (bdLocation.getLocType() == BDLocation.TypeNetWorkLocation) {                    currentPosition.append("网络");                } else {                    currentPosition.append("Error:" + bdLocation.getLocType());                }                textView.setText(currentPosition);            }            if (bdLocation.getLocType() == BDLocation.TypeGpsLocation                    || bdLocation.getLocType() == BDLocation.TypeNetWorkLocation) {                navigateTo(bdLocation);            }        }    }}

效果图