How to call whatsapp as an Intent from my app on Android?
<p>This is how I am calling the SMS app: </p>

<pre><code>Intent sendIntent = new Intent(Intent.ACTION_VIEW);
            sendIntent.putExtra("sms_body", "The SMS text"); 
            sendIntent.setType("vnd.android-dir/mms-sms");

            startActivity(sendIntent);   
</code></pre>

<p>How do I do the same for sending messages via twitter/Whatsapp/Facebook? What should I write in place of mms-sms? I found no documentation on such. </p>
