Home Segments Index Top Previous Next

832: Mainline

When you open the example application, the two slider views and the input-field view, with their automatically created, associated controllers, all use the commonValue getter to fetch a common value holder, which each viewer and each controller subsequently installs as the value of its model instance variable using the model: message. For each viewer, the model: message also establishes that the view is to be informed whenever the value holder's value is changed.