我正在使用这个代码片段打开whatsapp消息

public void openWhatsApp() {
        PackageManager pm = getPackageManager();
        try {
            String toNumber = "97312345678"; // Replace with mobile phone number without +Sign or leading zeros, but with country code.

            userContact = userContact.replace("+", "");
            Intent sendIntent = new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:" + "" + userContact));
            sendIntent.setPackage("com.whatsapp");
            startActivity(sendIntent);
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(this, "Whatsapp Not installed", Toast.LENGTH_LONG).show();

        }

    }

它工作得很好 Huawei y6 android 9 但不是开着 Xiaomi with android 10 note 7 即使在三星也一样
有人能帮我吗？如果数字，如果业务，那会影响什么？
如果是，如何检测？