Xamarin Application for Windows 10 / IOS / Android

I am looking to build a very basic POC Xamarin app that will run on Windows 10 / Android / IOS which effectively when you press a button will run through 5 locally stored images on full screen. So effectively it will work like a screen saver but will just cycle 5 images (1 every 2 seconds) for full screen for that particular device. We prefer .Net core in general anyway and would prefer to stick to the main Microsoft libraries if possible.

Please remember this is only a proof of concept and can be very rough as we want this put together quickly but needs to be tested on Android / IOS / Windows 10. The only other requirement is that like a screen saver when the mouse is moved or the screen is pressed then the images go away and we go back to the main app screen.