package cn.flightfeather.thirdapp.util; import android.content.Context; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.net.Uri; import java.util.ArrayList; import java.util.List; /** * Created by linli on 2017/6/4. * 跳转至手机已安装地图之用 */ public class NavigationHelper { private static PackageManager mPackageManager; private static ArrayList mPackageNames = new ArrayList<>(); private static final String GAODE_PACKAGE_NAME = "com.autonavi.minimap"; private static final String BAIDU_PACKAGE_NAME = "com.baidu.BaiduMap"; public static double pi = 3.1415926535897932384626; public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0; public static double a = 6378245.0; public static double ee = 0.00669342162296594323; public static double transformLat(double x, double y) { double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * 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(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0; ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0; return ret; } public static double transformLon(double x, double y) { double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * 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 static double[] transform(double lat, double lon) { if (outOfChina(lat, lon)) { return new double[]{lat, lon}; } double dLat = transformLat(lon - 105.0, lat - 35.0); double dLon = transformLon(lon - 105.0, lat - 35.0); double radLat = lat / 180.0 * pi; double magic = Math.sin(radLat); magic = 1 - ee * magic * magic; double sqrtMagic = Math.sqrt(magic); dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi); dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi); double mgLat = lat + dLat; double mgLon = lon + dLon; return new double[]{mgLat, mgLon}; } public static boolean outOfChina(double lat, double lon) { return lon < 72.004 || lon > 137.8347 || lat < 0.8293 || lat > 55.8271; } /** * 84 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System * * @param lat 纬度 * @param lon 经度 * @return 坐标数组（纬度，经度） */ public static double[] gps84_To_Gcj02(double lat, double lon) { if (outOfChina(lat, lon)) { return new double[]{lat, lon}; } double dLat = transformLat(lon - 105.0, lat - 35.0); double dLon = transformLon(lon - 105.0, lat - 35.0); double radLat = lat / 180.0 * pi; double magic = Math.sin(radLat); magic = 1 - ee * magic * magic; double sqrtMagic = Math.sqrt(magic); dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi); dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi); double mgLat = lat + dLat; double mgLon = lon + dLon; return new double[]{mgLat, mgLon}; } /** * * 火星坐标系 (GCJ-02) to 84 * * @param lon * @param lat * @return */ public static double[] gcj02_To_Gps84(double lat, double lon) { double[] gps = transform(lat, lon); double lontitude = lon * 2 - gps[1]; double latitude = lat * 2 - gps[0]; return new double[]{latitude, lontitude}; } /** * 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 * * @param lat 纬度 * @param lon 经度 */ public static double[] gcj02_To_Bd09(double lat, double lon) { double z = Math.sqrt(lon * lon + lat * lat) + 0.00002 * Math.sin(lat * x_pi); double theta = Math.atan2(lat, lon) + 0.000003 * Math.cos(lon * x_pi); double tempLon = z * Math.cos(theta) + 0.0065; double tempLat = z * Math.sin(theta) + 0.006; return new double[]{tempLat, tempLon}; } /** * * 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 * bd_lat * @param bd_lon * @return */ public static double[] bd09_To_Gcj02(double lat, double lon) { double x = lon - 0.0065, y = lat - 0.006; double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi); double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi); double tempLon = z * Math.cos(theta); double tempLat = z * Math.sin(theta); return new double[]{tempLat, tempLon}; } /** * 将gps84转为bd09 * * @param lat 纬度 * @param lon 经度 * @return 坐标数组（纬度，经度） */ public static double[] gps84_To_bd09(double lat, double lon) { double[] gcj02 = gps84_To_Gcj02(lat, lon); return gcj02_To_Bd09(gcj02[0], gcj02[1]); } public static double[] bd09_To_gps84(double lat, double lon) { double[] gcj02 = bd09_To_Gcj02(lat, lon); double[] gps84 = gcj02_To_Gps84(gcj02[0], gcj02[1]); //保留小数点后六位 gps84[0] = retain6(gps84[0]); gps84[1] = retain6(gps84[1]); return gps84; } /** * 保留小数点后六位 * * @param num 坐标数值 * @return 6位小数的数值 */ private static double retain6(double num) { String result = String.format("%.6f", num); return Double.valueOf(result); } public static void openBaiduMapToGuide(Context context, String storeName, double lat, double lon) { Intent intent = new Intent(); double[] location = gcj02_To_Bd09(lat , lon); String url = "baidumap://map/direction?" + "destination=name:"+storeName+"|latlng:"+location[0] + "," + location[1]+ "&sy=3&title=0&target=1"; Uri uri = Uri.parse(url); //将功能Scheme以URI的方式传入data intent.setData(uri); //启动该页面即可 context.startActivity(intent); } public static void openGaodeMapToGuide(Context context, double dLat, double dLon, String storeName) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.addCategory(Intent.CATEGORY_DEFAULT); // String url = "androidamap://route?sourceApplication=amap&slat="+oLat+"&slon="+oLon // +"&dlat="+dLat+"&dlon="+dLon+"&dname="+storeName+"&dev=0&t=0"; String url = "androidamap://route?sourceApplication=amap&dlat="+dLat+"&dlon="+dLon+"&dname="+storeName+"&dev=0&t=0"; Uri uri = Uri.parse(url); //将功能Scheme以URI的方式传入data intent.setData(uri); //启动该页面即可 context.startActivity(intent); } public static void openBrowserToGuide(Context context, String storeName, double lat, double lon) { String url = "http://uri.amap.com/navigation?to=" + lon + "," + lat + "," + storeName + "&mode=car&policy=1&src=mypage&coordinate=gaode&callnative=0"; Uri uri = Uri.parse(url); Intent intent = new Intent(Intent.ACTION_VIEW, uri); context.startActivity(intent); } private static void initPackageManager(Context context){ if (mPackageManager == null) { mPackageManager = context.getPackageManager(); } List packageInfos = mPackageManager.getInstalledPackages(0); if (packageInfos != null) { for (int i = 0; i < packageInfos.size(); i++) { mPackageNames.add(packageInfos.get(i).packageName); } } } public static boolean haveGaodeMap(Context context){ initPackageManager(context); return mPackageNames.contains(GAODE_PACKAGE_NAME); } public static boolean haveBaiduMap(Context context){ initPackageManager(context); return mPackageNames.contains(BAIDU_PACKAGE_NAME); } }