package cn.flightfeather.thirdapp.util;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.net.Uri;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Created by linli on 2017/6/4.
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* 跳转至手机已安装地图之用
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*/
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public class NavigationHelper {
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private static PackageManager mPackageManager;
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private static ArrayList<String> mPackageNames = new ArrayList<>();
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private static final String GAODE_PACKAGE_NAME = "com.autonavi.minimap";
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private static final String BAIDU_PACKAGE_NAME = "com.baidu.BaiduMap";
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public static double pi = 3.1415926535897932384626;
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public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
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public static double a = 6378245.0;
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public static double ee = 0.00669342162296594323;
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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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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));
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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(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0
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* pi)) * 2.0 / 3.0;
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return ret;
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}
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public static double[] transform(double lat, double lon) {
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if (outOfChina(lat, lon)) {
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return new double[]{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 double[]{mgLat, mgLon};
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}
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public static boolean outOfChina(double lat, double lon) {
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return lon < 72.004 || lon > 137.8347 || lat < 0.8293 || lat > 55.8271;
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}
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/**
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* 84 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System
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*
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* @param lat 纬度
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* @param lon 经度
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* @return 坐标数组（纬度，经度）
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*/
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public static double[] gps84_To_Gcj02(double lat, double lon) {
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if (outOfChina(lat, lon)) {
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return new double[]{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 double[]{mgLat, mgLon};
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}
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/**
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* * 火星坐标系 (GCJ-02) to 84 * * @param lon * @param lat * @return
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*/
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public static double[] gcj02_To_Gps84(double lat, double lon) {
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double[] gps = transform(lat, lon);
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double lontitude = lon * 2 - gps[1];
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double latitude = lat * 2 - gps[0];
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return new double[]{latitude, lontitude};
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}
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/**
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* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 将 GCJ-02 坐标转换成 BD-09 坐标
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*
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* @param lat 纬度
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* @param lon 经度
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*/
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public static double[] gcj02_To_Bd09(double lat, double lon) {
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double z = Math.sqrt(lon * lon + lat * lat) + 0.00002 * Math.sin(lat * x_pi);
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double theta = Math.atan2(lat, lon) + 0.000003 * Math.cos(lon * x_pi);
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double tempLon = z * Math.cos(theta) + 0.0065;
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double tempLat = z * Math.sin(theta) + 0.006;
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return new double[]{tempLat, tempLon};
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}
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/**
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* * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 * * 将 BD-09 坐标转换成GCJ-02 坐标 * * @param
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* bd_lat * @param bd_lon * @return
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*/
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public static double[] bd09_To_Gcj02(double lat, double lon) {
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double x = lon - 0.0065, y = lat - 0.006;
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double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
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double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
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double tempLon = z * Math.cos(theta);
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double tempLat = z * Math.sin(theta);
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return new double[]{tempLat, tempLon};
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}
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/**
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* 将gps84转为bd09
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*
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* @param lat 纬度
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* @param lon 经度
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* @return 坐标数组（纬度，经度）
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*/
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public static double[] gps84_To_bd09(double lat, double lon) {
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double[] gcj02 = gps84_To_Gcj02(lat, lon);
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return gcj02_To_Bd09(gcj02[0], gcj02[1]);
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}
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public static double[] bd09_To_gps84(double lat, double lon) {
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double[] gcj02 = bd09_To_Gcj02(lat, lon);
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double[] gps84 = gcj02_To_Gps84(gcj02[0], gcj02[1]);
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//保留小数点后六位
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gps84[0] = retain6(gps84[0]);
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gps84[1] = retain6(gps84[1]);
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return gps84;
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}
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/**
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* 保留小数点后六位
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*
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* @param num 坐标数值
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* @return 6位小数的数值
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*/
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private static double retain6(double num) {
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String result = String.format("%.6f", num);
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return Double.valueOf(result);
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}
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public static void openBaiduMapToGuide(Context context, String storeName, double lat, double lon) {
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Intent intent = new Intent();
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double[] location = gcj02_To_Bd09(lat , lon);
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String url = "baidumap://map/direction?" +
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"destination=name:"+storeName+"|latlng:"+location[0] + "," + location[1]+
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"&sy=3&title=0&target=1";
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Uri uri = Uri.parse(url);
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//将功能Scheme以URI的方式传入data
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intent.setData(uri);
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//启动该页面即可
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context.startActivity(intent);
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}
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public static void openGaodeMapToGuide(Context context, double dLat, double dLon, String storeName) {
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Intent intent = new Intent();
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intent.setAction(Intent.ACTION_VIEW);
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intent.addCategory(Intent.CATEGORY_DEFAULT);
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// String url = "androidamap://route?sourceApplication=amap&slat="+oLat+"&slon="+oLon
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// +"&dlat="+dLat+"&dlon="+dLon+"&dname="+storeName+"&dev=0&t=0";
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String url = "androidamap://route?sourceApplication=amap&dlat="+dLat+"&dlon="+dLon+"&dname="+storeName+"&dev=0&t=0";
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Uri uri = Uri.parse(url);
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//将功能Scheme以URI的方式传入data
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intent.setData(uri);
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//启动该页面即可
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context.startActivity(intent);
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}
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public static void openBrowserToGuide(Context context, String storeName, double lat, double lon) {
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String url = "http://uri.amap.com/navigation?to=" + lon + "," + lat + "," +
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storeName + "&mode=car&policy=1&src=mypage&coordinate=gaode&callnative=0";
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Uri uri = Uri.parse(url);
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Intent intent = new Intent(Intent.ACTION_VIEW, uri);
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context.startActivity(intent);
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}
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private static void initPackageManager(Context context){
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if (mPackageManager == null) {
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mPackageManager = context.getPackageManager();
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}
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List<PackageInfo> packageInfos = mPackageManager.getInstalledPackages(0);
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if (packageInfos != null) {
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for (int i = 0; i < packageInfos.size(); i++) {
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mPackageNames.add(packageInfos.get(i).packageName);
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}
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}
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}
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public static boolean haveGaodeMap(Context context){
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initPackageManager(context);
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return mPackageNames.contains(GAODE_PACKAGE_NAME);
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}
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public static boolean haveBaiduMap(Context context){
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initPackageManager(context);
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return mPackageNames.contains(BAIDU_PACKAGE_NAME);
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}
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}
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