title: Launch app from app in Xamarin
body: <p>I have written two apps with Xamarin: CallerApp and CalleeApp. If a button in CallerApp is clicked, the CalleeApp should be started (if not started already) and become visible.</p>
  
  <p>On top of the MainActivity of the CalleeApp, I have defined the intent like:</p>
  
  <pre><code> [IntentFilter(new [] { Intent.ActionView }, DataScheme="abcdef", Categories=new[] { Intent.CategoryDefault, Intent.CategoryBrowsable })]
   public class MainActivity : global::Xamarin.Forms.Platform.FormsApplicationActivity
   {
        ...
   }
  </code></pre>
  
  <p>In the CallerApp, when the button is clicked, I do:</p>
  
  <pre><code> var intent = new Intent(Intent.ActionView, Android.Net.Uri.Parse(abcdef://));
   Forms.Context.StartActivity(intent);
  </code></pre>
  
  <p>I then run CalleeApp, which is then deployed on the device and started.
  I then run CallerApp, which is then deployed on the device and started.
  If I then click the button, I get the message: "No apps can perform this action".</p>
  
  <p>Does anyone know what I'm doing wrong here?</p>
  
  <p>Note: if I try to launch the Maps application as in the example at <a href="http://developer.xamarin.com/recipes/android/fundamentals/intent/launch_the_map_application/" rel="nofollow">http://developer.xamarin.com/recipes/android/fundamentals/intent/launch_the_map_application/</a>, I get the same message.</p>