WidgetKit supports small, medium and large widget size families and, by default, a widget is assumed to support all three formats. In the event that a widget only supports specific sizes, WidgetKit needs to be notified using a widget configuration modifier.
To fully support a size format, a widget should take steps to detect the current size and provide a widget entry layout which makes use of the available space allocated to the widget on the device screen. This involves accessing the SwiftUI environment widgetFamily property and using it as the basis for conditional layout declarations within the widget view.
Now that widget size family support has been added to the project, the next chapter will add some interactive support to the widget in the form of deep linking into the companion app and widget configuration.
