title: How to go calendar app from my app?
body: <p>I need to go calendar app from my app, but I don't know to how.</p>
  
  <pre><code>   Intent intent = new Intent(Intent.ACTION_CALL);
     intent.setData(Uri.parse("Calendar"));
     activity.startActivity(intent);
  </code></pre>
  
  <p>I think that is like this code but no work.
  Any idea?</p>
  
  <p>I hope that somebody can help me.</p>