title: Send message to specific contact through whatsapp from another app
body: <p>Is it possible to send message to a specific contact through <code>whatsapp</code> directly from another app? I know the contact ID. I don't want to open <code>whatsapp</code> via Intent. I just want to send the message directly like normal sms.</p>
  
  <p>i have tried other solutions posted on stackoverflow but they are not working for me.</p>