百度sdk定位详解

admin 管理员组

文章数量: 1087649

百度sdk定位详解

注意：详解参考代码注释：

参考文档：
1.函数相关类参考：.php?title=android-locsdk/guide/get-location/indoors

2.SDK：.php?title=sdk/download&action

3.源代码：

3.1 AndroidManifest.xml源代码:
3.2 activity_main:
3.3 MainActivity:

总结：

1. 由于使用的是基本的定位所以定位不是很精准， 但是基本同理可得，使用全量定位开发包应该即可
2. 对于结构：一定复制之后要同步，闭包dependencies记得添加： implementation files('libs/BaiduLBS_Android.jar') 很重要这个，判断是否lib下的BaiduLBS_Android.jar 还可以展开
3. 对于很多类的方法基本开发文档中都有说明，参考可以弄得更加清楚
4. 书山有路勤为径，学海无涯苦作舟

一.整体框架；

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android=""xmlns:tools=""package="com.example.lbstest"><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-permissionandroid:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"tools:ignore="ProtectedPermissions" /><uses-permission android:name="android.permission.WAKE_LOCK" /><applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher_round"android:supportsRtl="true"android:theme="@style/Theme.LBSTest"><meta-dataandroid:name="com.baidu.lbsapi.API_KEY"android:value="百度申请的apkkey" /><activityandroid:name=".MainActivity"android:exported="true"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><serviceandroid:name="com.baidu.location.f"android:enabled="true"android:process=":remote"></service></application></manifest>

activity_main:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=""android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><TextViewandroid:id="@+id/position_text_view"android:layout_width="match_parent"android:layout_height="match_parent"android:visibility="gone"/><com.baidu.mapapi.map.MapViewandroid:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/bmapView"android:clickable="true"/></LinearLayout>

MainActivity:

package com.example.lbstest;import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;import com.baidu.location.BDAbstractLocationListener;
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;/*** @author chenzi*/
public class MainActivity extends AppCompatActivity {private LocationClient mLocationClient;private TextView positionText;private MapView mapView;private BaiduMap baiduMap;private boolean isFirstLocation = true;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);
//         注册监听事件mLocationClient = new LocationClient(getApplicationContext());mLocationClient.registerLocationListener((BDAbstractLocationListener) new MyLocationListener());
//        用于显示地图SDKInitializer.initialize(getApplicationContext());setContentView(R.layout.activity_main);mapView = findViewById(R.id.bmapView);positionText = findViewById(R.id.position_text_view);
//         地图的总控制器baiduMap = mapView.getMap();
//            用于注册显示的我的图标baiduMap.setMyLocationEnabled(true);
//         该数组用于存放权限的申请List<String> permissionList = new ArrayList<>();if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) !=PackageManager.PERMISSION_GRANTED) {permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);}if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE) !=PackageManager.PERMISSION_GRANTED) {permissionList.add(Manifest.permission.READ_PHONE_STATE);}if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) !=PackageManager.PERMISSION_GRANTED) {permissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);}
//           判断是否有未申请的权限if (!permissionList.isEmpty()) {
//           返回的是false，则是空的,取反则为非空，意思是有权限没有申请String[] permissions = permissionList.toArray(new String[permissionList.size()]);
//           调用函数申请权限ActivityCompat.requestPermissions(MainActivity.this, permissions, 1);} else {
//            权限已经满足,调用函数requestLocation();}}/*** <p>描述: <p>** @param* @return* @description:用于调用位置定位函数* @author chenzi* @CreateDate 2021/9/25 20:12* @update [序号][日期YYYY-MM-DD][更改人姓名][变更描述]*/private void requestLocation() {
//        用于重复刷新定位initLocation();mLocationClient.start();}/*** @description:用于刷新位置，间隔为5秒*/private void initLocation() {LocationClientOption option = new LocationClientOption();
//       5000表示： 每5秒更新一次位置option.setScanSpan(5000);
//        是否需要详细的位置信息option.setIsNeedAddress(true);
//        设置定位模式：Hight_Accuracy Battery_Saving Device_Sensorsoption.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy);mLocationClient.setLocOption(option);}/*** <p>描述: <p>** @param* @return* @description: onResume() onPause() onDestroy() 用于活动的暂停等等，以保证资源的即时释放* @author chenzi* @CreateDate 2021/9/25 21:04* @update [序号][日期YYYY-MM-DD][更改人姓名][变更描述]*/@Overrideprotected void onResume() {super.onResume();mapView.onResume();}@Overrideprotected void onPause() {super.onPause();mapView.onPause();}@Overrideprotected void onDestroy() {super.onDestroy();mLocationClient.stop();mapView.onDestroy();
//        显示小图标规定baiduMap.setMyLocationEnabled(false);}/*** <p>描述: <p>** @param* @return* @description: 权限处理函数，判断用户是否授权相关权限* @author chenzi* @CreateDate 2021/9/25 20:15* @update [序号][日期YYYY-MM-DD][更改人姓名][变更描述]*/@Overridepublic 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(MainActivity.this, "您必须授权所有相关权限才可以使用", Toast.LENGTH_SHORT).show();finish();return;}}
//                    调用方法函数启动定位requestLocation();} else {Toast.makeText(this, "发生未知错误！", Toast.LENGTH_SHORT).show();finish();}break;}default: {break;}}}/***<p>描述: <p>*@description: 用户图形地图点为到当前位置,其中，isFirstLocation默认为true ，符合规范*@param bdLocation*@return*@author chenzi*@CreateDate 2021/9/25 21:17*@update [序号][日期YYYY-MM-DD][更改人姓名][变更描述]*/private void navigateTo(BDLocation bdLocation){if (isFirstLocation){LatLng lng = new LatLng(bdLocation.getLatitude(), bdLocation.getLongitude());MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(lng);baiduMap.animateMapStatus(update);update = MapStatusUpdateFactory.zoomTo(17f);baiduMap.animateMapStatus(update);isFirstLocation = false;}
//        用于显示位置小图标MyLocationData.Builder locationBuilder = new MyLocationData.Builder();
//            获取经纬度locationBuilder.latitude(bdLocation.getLatitude());locationBuilder.latitude(bdLocation.getLongitude());
//            生成实例MyLocationData locationData = locationBuilder.build();
//            显示baiduMap.setMyLocationData(locationData);}/*** <p>描述: <p>** @param* @author chenzi* @description:位置信息的确定和显示，xxx市xxx区xxx街区...* @return* @CreateDate 2021/9/25 20:16* @update [序号][日期YYYY-MM-DD][更改人姓名][变更描述]*/private class MyLocationListener extends BDAbstractLocationListener implements BDLocationListener {@Overridepublic void onReceiveLocation(BDLocation bdLocation) {if (bdLocation.getLocType() == BDLocation.TypeGpsLocation ||bdLocation.getLocType() == BDLocation.TypeNetWorkLocation){navigateTo(bdLocation);}/**仅仅显示位置信息，没有图形*/
            用StringBuffer放位置信息
//            StringBuffer currentPosition = new StringBuffer();
            获取位置的方法：bdLocation的各种方法，详细见代码
//            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.getDistrict()).append("\n");
//            currentPosition.append("街道：").append(bdLocation.getStreet()).append("\n");
//            currentPosition.append("详细地址：").append(bdLocation.getAddrStr()).append("\n");
//            currentPosition.append("GPS:").append(bdLocation.getIndoorLocationSurpportBuidlingID());
//            currentPosition.append("GPS").append(bdLocation.getTown());
//            currentPosition.append("定位方式：");
            判断定位的方式
//            if (bdLocation.getLocType() == BDLocation.TypeGpsLocation) {
//                currentPosition.append("GPS");
                Toast.makeText(MainActivity.this, "GPS", Toast.LENGTH_SHORT).show();
//            } else if (bdLocation.getLocType() == BDLocation.TypeNetWorkLocation) {
//                currentPosition.append("网络");
                Toast.makeText(MainActivity.this, "网络", Toast.LENGTH_SHORT).show();
//            }
//            放入布局
//            positionText.setText(currentPosition);}}
}

部分效果:

2021年9月25日

本文标签： 百度sdk定位详解