Android 获取唯一标识替代方法

private static String getTheOnlyID() {
    String onlyOne;
    //获取IMEI
    TelephonyManager TelephonyMgr = (TelephonyManager) Utils.getContext().getSystemService(TELEPHONY_SERVICE);
    @SuppressLint("HardwareIds") String szImei = TelephonyMgr.getDeviceId();
    //读取手机设备信息，拼接成一个15位数据
    String m_szDevIDShort = "35" + //we make this look like a valid IMEI
            Build.BOARD.length() % 10 +
            Build.BRAND.length() % 10 +
            Build.CPU_ABI.length() % 10 +
            Build.DEVICE.length() % 10 +
            Build.DISPLAY.length() % 10 +
            Build.HOST.length() % 10 +
            Build.ID.length() % 10 +
            Build.MANUFACTURER.length() % 10 +
            Build.MODEL.length() % 10 +
            Build.PRODUCT.length() % 10 +
            Build.TAGS.length() % 10 +
            Build.TYPE.length() % 10 +
            Build.USER.length() % 10;
    //进行md5加密，生成16位字符
    String md5Encrypt = MD5(szImei + m_szDevIDShort);
    //MD字符不为空，使用16位字符，为空，使用IMEI或设备信息拼接后的数据
    if (TextUtils.isEmpty(md5Encrypt)) {
        onlyOne = szImei == null ? m_szDevIDShort : szImei;
    } else {
        onlyOne = md5Encrypt;
    }
    return onlyOne;
}

/**
 * 将给定的字符串MD5加密
 *
 * @param string 给定的字符串
 * @return MD5加密后生成的字符串
 */
public static String MD5(String string) {
    StringBuilder md5Str = new StringBuilder("");
    try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] b = md5.digest(string.getBytes("utf-8"));
        int i;
        for (byte aB : b) {
            i = aB;
            if (i < 0) i += 256;
            if (i < 16) {
                md5Str.append("0");
            }
            md5Str.append(Integer.toHexString(i));
        }
    } catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    return md5Str.toString();
}