title: How to navigate one Content page to another Content page from client project (IOS/Android) in xamarin forms?
body: <p>How to navigate one content page to another content page from client project in xamarin forms?</p>
  
  <p>I have done implementing push notification in each platform in different way. I need to navigate to another content from current content page.</p>
  
  <p>i try to use below code in GCMService's OnMessage method. 
  My Problem is Second navigation content page's constructor are called and debug successfully. but my screen still display current page not to display second navigation content page.</p>
  
  <pre><code>App.Current.MainPage.Navigation.PushAsync (new SecondNavigationContentPage());
  </code></pre>