Can I open chat with an unknown contact?

Question

I have an unknown number I need to start chat with it.

        Intent intent = new Intent();
        intent
                .setAction(Intent.ACTION_SEND)
                .putExtra(Intent.EXTRA_TEXT, "test")
                .putExtra("jid", "999999999@s.whatsapp.net")
                .setType("text/plain")
                .setPackage("com.whatsapp");

        activity.startActivity(intent);

Whatsapp openы a window where I have to select a contact.

Is it possible to open Whatsapp and start a chat with it?

I would imagine WhatsApp can only start a chat with a contact that is in your WhatsApp contact list, if you specify number for contact you have on WhatsApp does it work? — KgaboL, Aug 16 '18 at 07:22
If I send an intent to a contact which I have in my contact list, it works. — Evgeny Naumov, Aug 16 '18 at 07:26

score 1 · Answer 1 · answered Aug 17 '18 at 11:11

I found an answer here

String phone = "79999999999";
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("whatsapp://send?phone=" + phone));
startActivity(intent);

Phone should be without any characters only digits. This number is valid 79999999999, this number is not valid +79999999999

Can I open chat with an unknown contact?

1 Answers1