title: Task running once a day on Xamarin Forms
body: <p>I started using xamarin a few months ago, and, until now, I didn't have the need of doing something like this. 
  I'm developing an app that, once a day, should run a WCF web service and verify if an information is true. If it is true, it should show a notification on the device. 
  My problem is that I don't know how to perform it, i've read about backgrounding and schedule tasks, but I didn't understand well how can I perform this. How can I do it using Xamarin.Forms?</p>
  
  <p>Thank you!</p>