ios - Can't find GridViewLayout documentation

Question

I'm looking for the documentation for Xamarin.Forms.Platform.iOS.GridViewLayout and/or UICollectionViewLayout. I need to create a grid using native iOS layout managers but I can't find anything. I want to make This Layout in iOS.

I found this SO anser but the link is dead. As well as this SO post but I want it in a set layout not variable (the UICollectionViewSource)

For UICollectionViewLayout i found this.

标签： iosxamarinxamarin.formsxamarin.iosgrid