经纬度转度分秒 Java/Android

    /**
     * 将经纬度转换为度分秒格式
     * @param du 116.418847
     * @return 116°25'7.85"
     */
    public static String changeToDFM(double du) {
        int du1 = (int) du;
        double tp = (du - du1) * 60;
        int fen = (int) tp;
        String miao = String.format("%.2f", Math.abs(((tp - fen) * 60)));
        return du1 + "°" + Math.abs(fen) + "'" + miao + "\"";
    }

    /**
     * 度分秒转经纬度
     * @param dms 116°25'7.85"
     * @return 116.418847
     */
    public static double changeToDu(String dms) {
        if (dms == null) return 0;
        try {
            dms = dms.replace(" ", "");
            String[] str2 = dms.split("°");
            if (str2.length < 2) return 0;
            int d = Integer.parseInt(str2[0]);
            String[] str3 = str2[1].split("\'");
            if (str3.length < 2) return 0;
            int f = Integer.parseInt(str3[0]);
            String str4 = str3[1].substring(0, str3[1].length() - 1);
            double m = Double.parseDouble(str4);

            double fen = f + (m / 60);
            double du = (fen / 60) + Math.abs(d);
            if (d < 0) du = -du;
            return du;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return 0;
    }