Android将系统emoji表情转换成十进制字符串

public static String getIngeger(String s) {
    int a = 0;
    String aa = "";
    String sss = "";
    int b = 0;
    for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);

       //判断是否为表情

        if (isEmojiCharacter(c)) {

            b++;
            int i1 = c - 48;//转为ascill
            a += i1;

            if (b % 2 == 0) {
              
                aa =(a + 16419) + ";";
                a = 0;
                b = 0;
                sss = sss + aa;
            }
        } else {
            sss = sss + new String(Character.toString(c));
        }
    }
    return sss;
}

private static boolean isEmojiCharacter(char codePoint) {
   

     return !((codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA)
            || (codePoint == 0xD) || ((codePoint >= 0x20) && (codePoint <= 0xD7FF))
            || ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))
            || ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF)));
}