How to broadcast a message from my own app to contacts on WhatsApp?

Question

Now i can send a message from my app to whatsapp by this shown code..BUT how to send to many contacts at one time

Intent waIntent = new Intent(Intent.ACTION_SEND);
            waIntent.setType("text/plain");
                    String text = "Sorry For Interruption,I'm Just Trying Something";
            waIntent.setPackage("com.whatsapp");
            if (waIntent != null) {
                waIntent.putExtra(Intent.EXTRA_TEXT, text);//
            startActivity(Intent.createChooser(waIntent,"Share with"));

Answer 1

You can't. WhatsApp allows the user to pick only one contact or pre-existing group at a time, and you cannot change that in any way.