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
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.administrator.baidulbs_test">
<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">
<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>
<service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote">
service>
application>
manifest>布局文件
<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 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
