高德地图测两点距离android比较精确的

Posted 2020-10-10

/////参考资料：高德官方：【http://lbs.amap.com/api/android-location-sdk/guide/android-location/getlocation】

主要三个文件，前提配置androidstudio的高德地图使用环境，

给几张图：

2.project展示栏里app目录下的build.grade文件，高德开发手册有提到配置

 1 apply plugin: ‘com.android.application‘
 2 
 3 android {
 4     compileSdkVersion 26
 5     buildToolsVersion "26.0.1"
 6 //    添加map的so文件
 7     sourceSets{
 8         main{
 9             jniLibs.srcDirs=[‘libs‘]
10         }
11     }
12     defaultConfig {
13         applicationId "com.example.administrator.networkorder"
14         minSdkVersion 21
15         targetSdkVersion 26
16         versionCode 1
17         versionName "1.0"
18         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
19         ndk {
20             //设置支持的SO库架构（开发者可以根据需要，选择一个或多个平台的so）设置地图
21             abiFilters "armeabi", "armeabi-v7a", "arm64-v8a", "x86","arm64-v8a","x86_64"
22         }
23     }
24     buildTypes {
25         release {
26             minifyEnabled false
27             proguardFiles getDefaultProguardFile(‘proguard-android.txt‘), ‘proguard-rules.pro‘
28         }
29     }
30 }
31 
32 dependencies {
33     compile fileTree(include: [‘*.jar‘], dir: ‘libs‘)
34     androidTestCompile(‘com.android.support.test.espresso:espresso-core:2.2.2‘, {
35         exclude group: ‘com.android.support‘, module: ‘support-annotations‘
36     })
37     compile ‘com.android.support:appcompat-v7:26.+‘
38     //3D地图so及jar
39     compile ‘com.amap.api:3dmap:latest.integration‘
40     //定位功能
41     compile ‘com.amap.api:location:latest.integration‘
42     //搜索功能
43     compile ‘com.amap.api:search:latest.integration‘
44     testCompile ‘junit:junit:4.12‘
45     //    compile files(‘libs/AMap3DMap_5.4.0_AMapNavi_5.4.0_AMapSearch_5.3.1_AMapLocation_3.6.0_20170929.jar‘)
46     compile files(‘libs/AMap2DMap_5.2.0_AMapLocation_3.6.0_20170918.jar‘)
47 }

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3.AndroidManifest.xml文件，配置权限，开发key

 1 <!--创建调试版地图key【参照：http://blog.csdn.net/a873228446/article/details/51316979】-->
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="com.example.administrator.networkorder">
 4     <!--//地图SDK（包含其搜索功能）需要的基础权限，，，，，，高德地图-->
 5     <!--允许程序打开网络套接字-->
 6     <uses-permission android:name="android.permission.INTERNET" />
 7     <!--允许程序设置内置sd卡的写权限-->
 8     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 9     <!--允许程序获取网络状态-->
10     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
11     <!--允许程序访问WiFi网络信息-->
12     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
13     <!--允许程序读写手机状态和身份-->
14     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
15     <!--允许程序访问CellID或WiFi热点来获取粗略的位置-->
16     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
17     <!--用于申请调用A-GPS模块-->
18     <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"></uses-permission>
19     <!--用于申请获取蓝牙信息进行室内定位-->
20     <uses-permission android:name="android.permission.BLUETOOTH"></uses-permission>
21     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"></uses-permission>
22     <!--用于进行网络定位-->
23     <!--<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>-->
24     <!--用于访问GPS定位-->
25     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
26     <application
27         android:allowBackup="true"
28         android:icon="@mipmap/ic_launcher"
29         android:label="@string/app_name"
30         android:roundIcon="@mipmap/ic_launcher_round"
31         android:supportsRtl="true"
32         android:theme="@style/AppTheme">
33         <meta-data android:name="com.amap.api.v2.apikey" android:value="d4b100ad1856c9109720ea5f855b0638">
34            <!-- //开发者申请的key-->
35         </meta-data>
36         <service android:name="com.amap.api.location.APSService"></service>
37         <activity android:name=".MapTest1">
38             <intent-filter>
39                 <!--设置启动项-->
40                 <action android:name="android.intent.action.MAIN"></action>
41                 <category android:name="android.intent.category.LAUNCHER"></category>
42             </intent-filter>
43         </activity>
44     </application>
45 
46 </manifest>

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4.布局文件，，，就一个页面

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical" android:layout_width="match_parent"
 4     android:layout_height="match_parent">
 5     <com.amap.api.maps.MapView
 6         android:id="@+id/map1"
 7         android:layout_width="match_parent"
 8         android:layout_height="match_parent">
 9     </com.amap.api.maps.MapView>
10     <Button
11         android:id="@+id/btn_location"
12         android:layout_width="match_parent"
13         android:layout_height="wrap_content"
14         android:text="获取当前位置"
15         />
16     <Button
17         android:id="@+id/btn_dis"
18         android:layout_width="match_parent"
19         android:layout_height="wrap_content"
20         android:text="计算当前位置距离上个位置距离"
21         android:layout_marginTop="60sp"
22         />
23 </FrameLayout>

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5.activity文件，，官网提到三种定位模式，高精度，低功耗，设备定位，本来用的高精度，总感觉就一两米，他就算出20，室内的，改用设备定位就好了，会不会是网络不好，设备定位用的GPS才准点，用的android5,

  1 package com.example.administrator.networkorder;
  2 
  3 import android.os.Bundle;
  4 import android.support.annotation.Nullable;
  5 import android.support.v7.app.AppCompatActivity;
  6 import android.util.Log;
  7 import android.view.View;
  8 import android.widget.Button;
  9 import android.widget.Toast;
 10 
 11 import com.amap.api.location.AMapLocation;
 12 import com.amap.api.location.AMapLocationClient;
 13 import com.amap.api.location.AMapLocationClientOption;
 14 import com.amap.api.location.AMapLocationListener;
 15 import com.amap.api.location.CoordinateConverter;
 16 import com.amap.api.location.DPoint;
 17 import com.amap.api.maps.AMap;
 18 import com.amap.api.maps.AMapUtils;
 19 import com.amap.api.maps.MapView;
 20 import com.amap.api.maps.model.LatLng;
 21 import com.amap.api.maps.model.MyLocationStyle;
 22 
 23 import java.util.Map;
 24 
 25 /**
 26  * Created by Administrator on 2017/10/9 0009.
 27  */
 28 
 29 public class MapTest1 extends AppCompatActivity {
 30     MapView mMapView;
 31     AMap aMap;
 32     MyLocationStyle myLocationStyle;
 33     //----------------------------------------
 34     private Button buttonGetLocation;
 35     AMapLocationClient aMapLocationClient;
 36     AMapLocationListener aMapLocationListener;
 37     AMapLocationClientOption aMapLocationClientOption;
 38     Button buttonCal;
 39 
 40     private LatLng latLng_first,latLng_second;
 41     private boolean changePosition = false;
 42     private int i1 = 1;
 43     @Override
 44     protected void onCreate(@Nullable Bundle savedInstanceState) {
 45         super.onCreate(savedInstanceState);
 46         setContentView(R.layout.map);
 47         mMapView = (MapView) findViewById(R.id.map1);
 48         mMapView.onCreate(savedInstanceState);
 49         buttonGetLocation = (Button) findViewById(R.id.btn_location);
 50         buttonCal = (Button) findViewById(R.id.btn_dis);
 51         if (aMap == null)
 52             aMap = mMapView.getMap();
 53 //        testLocation();
 54 //        showLocation();
 55         buttonGetLocation.setOnClickListener(new View.OnClickListener() {
 56             @Override
 57             public void onClick(View v) {
 58                 showLocation();
 59             }
 60         });
 61         buttonCal.setOnClickListener(new View.OnClickListener() {
 62             @Override
 63             public void onClick(View v) {
 64                 String a="定位次数不够";
 65                 if (i1>2){
 66                     a="位置1："+latLng_first.latitude+","+latLng_first.longitude+"]位置2:["
 67                             +latLng_second.latitude+","+latLng_second.longitude+"]距离："+AMapUtils.calculateLineDistance(latLng_first,latLng_second);
 68                 }
 69                 Toast.makeText(MapTest1.this,"s::"+a,Toast.LENGTH_LONG).show();
 70             }
 71         });
 72     }
 73     public float getDistance(LatLng start, LatLng end) {//来自【http://blog.csdn.net/qq_34589749/article/details/53482567】的计算方法
 74 
 75         double lon1 = (Math.PI / 180) * start.longitude;
 76         double lon2 = (Math.PI / 180) * end.longitude;
 77         double lat1 = (Math.PI / 180) * start.latitude;
 78         double lat2 = (Math.PI / 180) * end.latitude;
 79 
 80         // 地球半径
 81         double R = 6371;
 82 
 83         // 两点间距离 km，如果想要米的话，结果*1000就可以了
 84         double d = Math.acos(Math.sin(lat1) * Math.sin(lat2) + Math.cos(lat1) * Math.cos(lat2) * Math.cos(lon2 - lon1))
 85                 * R;
 86         float d1 = (float) Math.abs(d*1000);
 87         d1 = Math.round(d1);
 88 //        AMapUtils.g
 89         return d1 ;
 90     }
 91     private void showLocation(){
 92         aMapLocationClient = new AMapLocationClient(getApplicationContext());
 93         aMapLocationListener = new AMapLocationListener() {
 94             @Override
 95             public void onLocationChanged(AMapLocation aMapLocation) {
 96                 if (aMapLocation != null) {
 97                     if (aMapLocation.getErrorCode() == 0) {
 98 //可在其中解析amapLocation获取相应内容。
 99                         LatLng latLng1 = new LatLng(38.008466,112.446289),latLng2=new LatLng(38.008353,112.446109);//参照：http://blog.csdn.net/u012527802/article/details/42271983
100                         float distance1=CoordinateConverter.calculateLineDistance(new DPoint(38.008466,112.446289),new DPoint(38.008353,112.446109));
101                         if (changePosition){
102                             latLng_first = new LatLng(aMapLocation.getLatitude(),aMapLocation.getLongitude());
103                         }else
104                             latLng_second = new LatLng(aMapLocation.getLatitude(),aMapLocation.getLongitude());
105                         changePosition = changePosition?false:true;
106                         i1++;
107                         Toast.makeText(MapTest1.this,"定位成功:"+aMapLocation.getAddress()+"经纬：["+aMapLocation.getLatitude()+","+aMapLocation.getLongitude()+
108                                 "],精度："+aMapLocation.getAccuracy()+"测试两点距离大概三米左右，计算值{不准啊}："+
109                                 AMapUtils.calculateLineDistance(latLng1,latLng2)+"官网给的方法结果："+distance1
110                                 +"博客主1："+getDistance(latLng1,latLng2),Toast.LENGTH_LONG).show();
111                     }else {
112                         //定位失败时，可通过ErrCode（错误码）信息来确定失败的原因，errInfo是错误信息，详见错误码表。
113                         Log.e("AmapError","location Error, ErrCode:"
114                                 + aMapLocation.getErrorCode() + ", errInfo:"
115                                 + aMapLocation.getErrorInfo());
116                     }
117                 }
118             }
119         };
120         aMapLocationClient.setLocationListener(aMapLocationListener);
121         aMapLocationClientOption = new AMapLocationClientOption();
122         //使用手机定位的话，
123         aMapLocationClientOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Device_Sensors);
124         aMapLocationClientOption.setOnceLocation(true);
125         aMapLocationClientOption.setOnceLocationLatest(true);
126 //        aMapLocationClientOption.setInterval(2000);
127         aMapLocationClientOption.setNeedAddress(true);
128         aMapLocationClientOption.setLocationCacheEnable(false);
129         aMapLocationClient.setLocationOption(aMapLocationClientOption);
130         aMapLocationClient.startLocation();
131     }
132     private void testLocation(){
133         myLocationStyle = new MyLocationStyle();
134         myLocationStyle.interval(1000);
135         myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE);
136         myLocationStyle.showMyLocation(true);
137         aMap.setMyLocationStyle(myLocationStyle);
138         aMap.setMyLocationEnabled(true);
139     }
140     @Override
141     protected void onDestroy() {
142         super.onDestroy();
143         //在activity执行onDestroy时执行mMapView.onDestroy()，销毁地图
144         mMapView.onDestroy();
145     }
146     @Override
147     protected void onResume() {
148         super.onResume();
149         //在activity执行onResume时执行mMapView.onResume ()，重新绘制加载地图
150         mMapView.onResume();
151     }
152     @Override
153     protected void onPause() {
154         super.onPause();
155         //在activity执行onPause时执行mMapView.onPause ()，暂停地图的绘制
156         mMapView.onPause();
157     }
158     @Override
159     protected void onSaveInstanceState(Bundle outState) {
160         super.onSaveInstanceState(outState);
161         //在activity执行onSaveInstanceState时执行mMapView.onSaveInstanceState (outState)，保存地图当前的状态
162         mMapView.onSaveInstanceState(outState);
163     }
164 }

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6.试了下，又出问题了，定位慢，还不准了，2，3米测成31米，三个都不准确，可能没用用室内定位的方式》》？？？，，，