android生成唯一标识,恢复出厂也不会变

public static String getUUID() {
    String serial = null;
    String m_szDevIDShort = "11" +
            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; //13 位
    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            serial = android.os.Build.getSerial();
        } else {
            serial = Build.SERIAL;
        }
        //API>=9 使用serial号
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    } catch (Exception exception) {
        //serial需要一个初始化
        serial = "111"; // 随便一个初始化
    }
    //使用硬件信息拼凑出来的15位号码
    return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
}