How can I open WhatsApp's conversation activity using contact data?

Question

I want open what\'s app conversation activity cmp=com.whatsapp/.Conversation from my app.

How can I do this? I have contact phone number, contact id, c

Answer 1

You can use this example

startActivity(new Intent(Intent.ACTION_VIEW,
                            Uri.parse(
                                    "https://api.whatsapp.com/send?phone=+628119xxx&text=I'm%20interested%20in%20your%20car%20for%20sale"
                            )));