Using Android Intent system we can share on whats app from our application. Whats App application have listeners that listen to intents to share media and texts. Simply create an intent to share text, ...
You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.
You can easily create a WhatsApp account by following the step-by-step instructions to enter your phone number and name.