title: Run the methods in background which are in ViewModels in Xamarin.ios
body: <p>I am working on Xamarin.iOS application. I want some part of my currently running features should also run in background. I have a <code>System.Timer</code> which is in the <code>App.cs(Load on start)</code> and added <code>TimerElapsed</code> event in one of the viewcontroller through which control passes to ViewModel on timer elapsed and executes all function. </p>
  
  <p>Now I want the same feature should run in background also but unable to get thoughts how to achieve it. Can anyone help me on this? </p>
  
  <p>Thanks.</p>