Behaviours.md

Behaviours

Instead of writing (and repeating) a bunch of code in each controller's will/didAppear (and other moments), use behaviours! It's kind of similar to application services.

To add behaviours to your view controller:

override func viewDidLoad() {
  super.viewDidLoad()

  add(behaviours: [
    HideNavbarHairlineBehaviour(),
    RefreshOnAppearBehavior(delegate: self)
  ])
}

There are some built-in behaviours for the more common cases:

• ApplicationEventBehavior: enter foreground/background events.
• DismissKeyboardBehaviour: dismiss keyboard on disappear.
• HideShowNavigationBarBehaviour: show/hide the navigation bar on push/pop.
• RefreshOnAppearBehavior: trigger a controller's refresh callback on appear (always/no pop).