title: how to call platform specific page from xamarin.forms
body: <p>I am new to the xamarin app development, I have some questions : </p>
  
  <ol>
  <li>Is it possible to call the platform specific page from the
  Xamarin.Form page?    </li>
  <li>Can I do Page Navigation from view model?</li>
  </ol>
  
  <p>Let me explain clearly.</p>
  
  <p>I have a Page <code>XFView.xaml</code> , <code>XFView.xaml.cs</code> and <code>XFViewModel.cs</code> in PCL (Xamarin.Forms) project from <code>XFView.xaml.cs</code> or  <code>XFViewModel.cs</code> i want to call <code>MAActivity.cs</code> page which is present in <code>Xamarin.Andriod</code> project</p>
  
  <p>I tried a lot but got getting any idea.</p>