First of all, we can create a new Xamarin.Forms PCL project and reuse the same base structure that we created in Chapter 4, Data – the Monkeys Catalog.
We can copy all the classes we've written inside the Base folder and we can prepare the empty subfolders of Core to define the business logic of our project.
To use the Base classes, we need to import into our projects the SQLite.Net PCL from the NuGet Package manager. It is a good practice to update all the packages before you start. As soon as a new package has been updated, we will be notified in the Packages folder. To update the package, right-click on the Packages folder and select Update from the contextual menu.
We can create, in the Business subfolder of the Core, the MenuItem class that contains the properties of the available items to order. A MenuItem will have the following:
NamePriceRequiredSeconds
The class will be developed as follows:
public class MenuItem : BaseEntity<int> ...