从自定义视图 class 添加自定义视图到 UIViewController

Question

I have a custom view. I named AnimatingView . I have customized the view in the AnimatingView.swift . In the ViewController, I am initiating the view with

let customAnimatingView = AnimatingView(overView: self.view)

and then I add the subView with -

self.view.addSubview(customAnimatingView)

However, I don't want the user add it as a subView like above, rather. I want to call a func from AnimatingView and the custom view should add it the controller like -

customAnimatingView.preset()

Can anyone give me some hint on how can I achieve such behavior.

Answer 1

Inside the custom view do

// add a property that refers to the the vc container of the view
// init it when you create an instance of the view
weak var parentController:UIViewController?
func present() { 
  parentController?.view.addSubview(self)
}

OR if you need to send the main view instead

var parentView:UIView?
func present() { 
  parentView?.addSubview(self)
}