In Chapter 7 you saw how Xamarin.Forms allows you to quickly build cross-platform apps that run on Android and iOS (and actually Windows 10) by sharing the user interface and a common set of APIs based on portable class libraries, shared libraries, and .NET Standard libraries.
Now the problem is that most apps need to access native iOS and Android features whose APIs are not mapped by Xamarin.Forms, and I’m talking about common tasks such as showing the camera, detecting network connection availability, and reading and writing files. If Xamarin.Forms ...