title: Xamarin Forms, which project to place file access code
body: <p>I'm fairly new to Xamarin Forms and I have a project that for the moment just targets Android.  I'm trying to understand the correct place to put logic for uploading images from the mobile device to either Azure blob storage or FTP them to a server.  The logic to upload to Azure or FTP I already have working, I'm just trying to understand if that belongs in the PCL/Forms project, or should it go in the Android project?  Are there pro's/con's to place it in either project?</p>