多种类型经纬度转换工具类
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mylibrary/src/main/java/com/dahe/mylibrary/utils/Gps.java
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33
mylibrary/src/main/java/com/dahe/mylibrary/utils/Gps.java
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package com.dahe.mylibrary.utils;
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/**
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* @ClassName Gps
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* @Author john
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* @Date 2024/12/13 17:25
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* @Description TODO
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*/
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public class Gps {
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private double wgLon;
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private double wgLat;
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public Gps(double wgLat,double wgLon) {
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this.wgLat = wgLat;
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this.wgLon = wgLon;
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}
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public double getWgLon() {
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return wgLon;
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}
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public void setWgLon(double wgLon) {
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this.wgLon = wgLon;
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}
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public double getWgLat() {
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return wgLat;
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}
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public void setWgLat(double wgLat) {
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this.wgLat = wgLat;
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}
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}
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package com.dahe.mylibrary.utils;
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import android.Manifest;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.location.Address;
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import android.location.Criteria;
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import android.location.Geocoder;
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import android.location.Location;
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import android.location.LocationListener;
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import android.location.LocationManager;
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import android.location.LocationProvider;
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import android.os.Bundle;
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import android.provider.Settings;
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import android.util.Log;
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import androidx.core.app.ActivityCompat;
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import androidx.core.content.ContextCompat;
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import java.io.IOException;
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import java.text.DecimalFormat;
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import java.util.List;
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import java.util.Locale;
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/**
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* @author ondear
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* time : 16/11/13
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* desc : 定位相关工具类
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*/
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public class RxLocationUtils {
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public static double pi = 3.1415926535897932384626;
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public static double a = 6378245.0;
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public static double ee = 0.00669342162296594323;
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private static OnLocationChangeListener mListener;
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private static MyLocationListener myLocationListener;
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private static LocationManager mLocationManager;
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/**
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* 判断Gps是否可用
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*
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* @return {@code true}: 是<br>{@code false}: 否
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*/
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public static boolean isGpsEnabled(Context context) {
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LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
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return lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
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}
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/**
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* 判断定位是否可用
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*
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* @return {@code true}: 是<br>{@code false}: 否
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*/
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public static boolean isLocationEnabled(Context context) {
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LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
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return lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER) || lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
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}
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/**
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* 打开Gps设置界面
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*/
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public static void openGpsSettings(Context context) {
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Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
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intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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context.startActivity(intent);
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}
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/**
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* 注册
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* <p>使用完记得调用{@link #unregister()}</p>
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* <p>需添加权限 {@code <uses-permission android:name="android.permission.INTERNET"/>}</p>
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* <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>}</p>
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* <p>需添加权限 {@code <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>}</p>
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* <p>如果{@code minDistance}为0，则通过{@code minTime}来定时更新；</p>
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* <p>{@code minDistance}不为0，则以{@code minDistance}为准；</p>
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* <p>两者都为0，则随时刷新。</p>
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*
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* @param minTime 位置信息更新周期（单位：毫秒）
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* @param minDistance 位置变化最小距离：当位置距离变化超过此值时，将更新位置信息（单位：米）
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* @param listener 位置刷新的回调接口
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* @return {@code true}: 初始化成功<br>{@code false}: 初始化失败
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*/
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public static boolean register(Context context, long minTime, long minDistance, OnLocationChangeListener listener) {
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if (listener == null) return false;
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if (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
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ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
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ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
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return false;
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}
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mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
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mListener = listener;
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if (!isLocationEnabled(context)) {
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ToastUtils.showToast(context, "无法定位，请打开定位服务");
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return false;
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}
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String provider = mLocationManager.getBestProvider(getCriteria(), true);
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Location location = mLocationManager.getLastKnownLocation(provider);
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if (location != null) listener.getLastKnownLocation(location);
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if (myLocationListener == null) myLocationListener = new MyLocationListener();
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mLocationManager.requestLocationUpdates(provider, minTime, minDistance, myLocationListener);
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return true;
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}
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/**
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* 注销
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*/
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public static void unregister() {
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if (mLocationManager != null) {
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if (myLocationListener != null) {
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mLocationManager.removeUpdates(myLocationListener);
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myLocationListener = null;
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}
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mLocationManager = null;
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}
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}
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/**
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* 设置定位参数
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*
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* @return {@link Criteria}
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*/
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private static Criteria getCriteria() {
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Criteria criteria = new Criteria();
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//设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细
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criteria.setAccuracy(Criteria.ACCURACY_FINE);
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//设置是否要求速度
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criteria.setSpeedRequired(false);
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// 设置是否允许运营商收费
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criteria.setCostAllowed(false);
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//设置是否需要方位信息
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criteria.setBearingRequired(false);
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//设置是否需要海拔信息
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criteria.setAltitudeRequired(false);
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// 设置对电源的需求
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criteria.setPowerRequirement(Criteria.POWER_LOW);
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return criteria;
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}
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/**
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* 根据经纬度获取地理位置
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*
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* @param context 上下文
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* @param latitude 纬度
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* @param longitude 经度
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* @return {@link Address}
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*/
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public static Address getAddress(Context context, double latitude, double longitude) {
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Geocoder geocoder = new Geocoder(context, Locale.getDefault());
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try {
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List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
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if (addresses.size() > 0) return addresses.get(0);
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 根据经纬度获取所在国家
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*
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* @param context 上下文
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* @param latitude 纬度
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* @param longitude 经度
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* @return 所在国家
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*/
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public static String getCountryName(Context context, double latitude, double longitude) {
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Address address = getAddress(context, latitude, longitude);
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return address == null ? "unknown" : address.getCountryName();
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}
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/**
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* 根据经纬度获取所在地
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*
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* @param context 上下文
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* @param latitude 纬度
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* @param longitude 经度
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* @return 所在地
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*/
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public static String getLocality(Context context, double latitude, double longitude) {
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Address address = getAddress(context, latitude, longitude);
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return address == null ? "unknown" : address.getLocality();
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}
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/**
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* 根据经纬度获取所在街道
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*
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* @param context 上下文
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* @param latitude 纬度
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* @param longitude 经度
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* @return 所在街道
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*/
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public static String getStreet(Context context, double latitude, double longitude) {
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Address address = getAddress(context, latitude, longitude);
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return address == null ? "unknown" : address.getAddressLine(0);
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}
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/**
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* 根据经纬度获取详细地址
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*
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* @param context 上下文
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* @param latitude 纬度
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* @param longitude 经度
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* @return 所在街道
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*/
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public static String getFeature(Context context, double latitude, double longitude) {
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Address address = getAddress(context, latitude, longitude);
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return address == null ? "未知地点" : address.getFeatureName();
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}
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//------------------------------------------坐标转换工具start--------------------------------------
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/**
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* GPS坐标 转换成 角度
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* 例如 113.202222 转换成 113°12′8″
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*
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* @param location
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* @return
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*/
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public static String gpsToDegree(double location) {
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double degree = Math.floor(location);
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double minute_temp = (location - degree) * 60;
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double minute = Math.floor(minute_temp);
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// double second = Math.floor((minute_temp - minute)*60);
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String second = new DecimalFormat("#.##").format((minute_temp - minute) * 60);
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return (int) degree + "°" + (int) minute + "′" + second + "″";
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}
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/**
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* 国际 GPS84 坐标系
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* 转换成
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* [国测局坐标系] 火星坐标系 (GCJ-02)
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* <p>
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* World Geodetic System ==> Mars Geodetic System
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*
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* @param lon 经度
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* @param lat 纬度
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* @return GPS实体类
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*/
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public static Gps GPS84ToGCJ02(double lat, double lon) {
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if (outOfChina(lat, lon)) {
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return null;
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}
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double dLat = transformLat(lon - 105.0, lat - 35.0);
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double dLon = transformLon(lon - 105.0, lat - 35.0);
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double radLat = lat / 180.0 * pi;
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double magic = Math.sin(radLat);
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magic = 1 - ee * magic * magic;
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double sqrtMagic = Math.sqrt(magic);
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dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
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dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
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double mgLat = lat + dLat;
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double mgLon = lon + dLon;
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return new Gps(mgLat, mgLon);
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}
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/**
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* [国测局坐标系] 火星坐标系 (GCJ-02)
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* 转换成
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* 国际 GPS84 坐标系
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*
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* @param lon 火星经度
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* @param lat 火星纬度
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*/
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public static Gps GCJ02ToGPS84(double lat, double lon) {
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Gps gps = transform(lat, lon);
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double lontitude = lon * 2 - gps.getWgLon();
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double latitude = lat * 2 - gps.getWgLat();
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return new Gps(latitude, lontitude);
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}
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/**
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* 火星坐标系 (GCJ-02)
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* 转换成
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* 百度坐标系 (BD-09)
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*
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* @param gg_lon 经度
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* @param gg_lat 纬度
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*/
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public static Gps GCJ02ToBD09(double gg_lat, double gg_lon) {
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double x = gg_lon, y = gg_lat;
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double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * pi);
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double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * pi);
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double bd_lon = z * Math.cos(theta) + 0.0065;
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double bd_lat = z * Math.sin(theta) + 0.006;
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return new Gps(bd_lat, bd_lon);
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}
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/**
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* 国际 GPS84 坐标系
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* 转换成
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* 百度坐标系 (BD-09)
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*
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* @param lon 经度
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* @param lat 纬度
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*/
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public static Gps GPS84ToBD09(double lat, double lon) {
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Gps gps = GPS84ToGCJ02(lat,lon);
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if (gps == null) {
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return new Gps(lat,lon);
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}
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//GCJ-02 转 BD-09
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return GCJ02ToBD09(gps.getWgLat(), gps.getWgLon());
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}
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/**
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* 百度坐标系 (BD-09)
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* 转换成
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* 火星坐标系 (GCJ-02)
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*
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* @param bd_lon 百度*经度
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* @param bd_lat 百度*纬度
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* @return GPS实体类
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*/
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public static Gps BD09ToGCJ02(double bd_lat, double bd_lon) {
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double x = bd_lon - 0.0065, y = bd_lat - 0.006;
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double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * pi);
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double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * pi);
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double gg_lon = z * Math.cos(theta);
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double gg_lat = z * Math.sin(theta);
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return new Gps(gg_lat, gg_lon);
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}
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/**
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* 百度坐标系 (BD-09)
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* 转换成
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* 国际 GPS84 坐标系
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*
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* @param bd_lon 百度*经度
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* @param bd_lat 百度*纬度
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* @return GPS实体类
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*/
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public static Gps BD09ToGPS84(double bd_lat, double bd_lon) {
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Gps gcj02 = BD09ToGCJ02(bd_lat, bd_lon);
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Gps map84 = GCJ02ToGPS84(gcj02.getWgLat(),
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gcj02.getWgLon());
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return map84;
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}
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/**
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* 不在中国范围内
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*
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* @param lon 经度
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* @param lat 纬度
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* @return boolean值
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*/
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public static boolean outOfChina(double lat, double lon) {
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if (lon < 72.004 || lon > 137.8347)
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return true;
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return lat < 0.8293 || lat > 55.8271;
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}
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/**
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* 转化算法
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*
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* @param lon
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* @param lat
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* @return
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*/
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public static Gps transform(double lat, double lon) {
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if (outOfChina(lat, lon)) {
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return new Gps(lat, lon);
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}
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double dLat = transformLat(lon - 105.0, lat - 35.0);
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double dLon = transformLon(lon - 105.0, lat - 35.0);
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double radLat = lat / 180.0 * pi;
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double magic = Math.sin(radLat);
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magic = 1 - ee * magic * magic;
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double sqrtMagic = Math.sqrt(magic);
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dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
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dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
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double mgLat = lat + dLat;
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double mgLon = lon + dLon;
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return new Gps(mgLat, mgLon);
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}
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/**
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* 纬度转化算法
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*
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* @param x
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* @param y
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* @return
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*/
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public static double transformLat(double x, double y) {
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double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y
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+ 0.2 * Math.sqrt(Math.abs(x));
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ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
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return ret;
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}
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/**
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* 经度转化算法
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*
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* @param x
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* @param y
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* @return
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*/
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public static double transformLon(double x, double y) {
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double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1
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* Math.sqrt(Math.abs(x));
|
||||
ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
|
||||
ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
|
||||
ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0
|
||||
* pi)) * 2.0 / 3.0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
public interface OnLocationChangeListener {
|
||||
|
||||
/**
|
||||
* 获取最后一次保留的坐标
|
||||
*
|
||||
* @param location 坐标
|
||||
*/
|
||||
void getLastKnownLocation(Location location);
|
||||
|
||||
/**
|
||||
* 当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
|
||||
*
|
||||
* @param location 坐标
|
||||
*/
|
||||
void onLocationChanged(Location location);
|
||||
|
||||
/**
|
||||
* provider的在可用、暂时不可用和无服务三个状态直接切换时触发此函数
|
||||
*
|
||||
* @param provider 提供者
|
||||
* @param status 状态
|
||||
* @param extras provider可选包
|
||||
*/
|
||||
void onStatusChanged(String provider, int status, Bundle extras);//位置状态发生改变
|
||||
|
||||
void onProviderEnabled(String provider);
|
||||
|
||||
void onProviderDisabled(String provider);
|
||||
}
|
||||
|
||||
private static class MyLocationListener
|
||||
implements LocationListener {
|
||||
/**
|
||||
* 当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
|
||||
*
|
||||
* @param location 坐标
|
||||
*/
|
||||
@Override
|
||||
public void onLocationChanged(Location location) {
|
||||
if (mListener != null) {
|
||||
mListener.onLocationChanged(location);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* provider的在可用、暂时不可用和无服务三个状态直接切换时触发此函数
|
||||
*
|
||||
* @param provider 提供者
|
||||
* @param status 状态
|
||||
* @param extras provider可选包
|
||||
*/
|
||||
@Override
|
||||
public void onStatusChanged(String provider, int status, Bundle extras) {
|
||||
if (mListener != null) {
|
||||
mListener.onStatusChanged(provider, status, extras);
|
||||
}
|
||||
switch (status) {
|
||||
case LocationProvider.AVAILABLE:
|
||||
Log.d("onStatusChanged", "当前GPS状态为可见状态");
|
||||
break;
|
||||
case LocationProvider.OUT_OF_SERVICE:
|
||||
Log.d("onStatusChanged", "当前GPS状态为服务区外状态");
|
||||
break;
|
||||
case LocationProvider.TEMPORARILY_UNAVAILABLE:
|
||||
Log.d("onStatusChanged", "当前GPS状态为暂停服务状态");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* provider被enable时触发此函数，比如GPS被打开
|
||||
*/
|
||||
@Override
|
||||
public void onProviderEnabled(String provider) {
|
||||
if (mListener != null) {
|
||||
mListener.onProviderEnabled(provider);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* provider被disable时触发此函数，比如GPS被关闭
|
||||
*/
|
||||
@Override
|
||||
public void onProviderDisabled(String provider) {
|
||||
if (mListener != null) {
|
||||
mListener.onProviderDisabled(provider);
|
||||
}
|
||||
}
|
||||
}
|
||||
//===========================================坐标转换工具end====================================
|
||||
|
||||
|
||||
|
||||
private static final double EARTH_RADIUS = 6378137.0; //地球半径
|
||||
|
||||
|
||||
/**
|
||||
* 计算两个经纬度之间的距离
|
||||
*
|
||||
* @param longitude
|
||||
* @param latitude
|
||||
* @param longitude2
|
||||
* @param latitude2
|
||||
* @return 单位米
|
||||
*/
|
||||
public static double getDistance(double longitude, double latitude, double longitude2, double latitude2) {
|
||||
double lat1 = rad(latitude);
|
||||
double lat2 = rad(latitude2);
|
||||
double a = lat1 - lat2;
|
||||
double b = rad(longitude) - rad(longitude2);
|
||||
double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(lat1) * Math.cos(lat2) * Math.pow(Math.sin(b / 2), 2)));
|
||||
s = s * EARTH_RADIUS;
|
||||
s = Math.round(s * 10000) / 10000; //四舍五入
|
||||
return s;
|
||||
}
|
||||
|
||||
/**
|
||||
* 弧度换为角度
|
||||
* @param d
|
||||
* @return
|
||||
*/
|
||||
private static double rad(double d) {
|
||||
return d * Math.PI / 180.0;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user