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

try this code :

String smsNumber="919426640584@s.whatsapp.net";
Uri uri = Uri.parse("smsto:" + smsNumber);
Intent i = new Intent(Intent.ACTION_SENDTO, uri);
i.putExtra("sms_body", "Prakash Gajera");
i.setPackage("com.whatsapp");
startActivity(i);