How can I override the method of view in Controller? - ios

Question

I made a custom View Cell that want to reuse. I want to add action to button in customView, that show side menu. So I wrote a code ReusableCustomView.swift like below.
class ResuableCustomView: UIView {
let nibName = "ReusableCustomView"
#IBOutlet weak var categoryMenuBTn: UIButton!
#IBOutlet weak var containerView: UIStackView!
func showMenu(){
print("tapped")
}
#IBAction func menuBtnClicked(_ sender: UIButton) {
self.showMenu()
}
#IBAction func buttonTap(_ sender: UIButton) {
print("Tappedd")
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
commonInit()
}
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
func commonInit() {
guard let view = loadViewFromNib() else { return }
view.frame = self.bounds
self.addSubview(view)
}
func loadViewFromNib() -> UIView? {
let nib = UINib(nibName: nibName, bundle: nil)
return nib.instantiate(withOwner: self, options: nil).first as? UIView
}
}
showing SideMenu Code is like below.
func showSlideMenu(){
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let sideMenuViewController: SideMenuViewController = storyboard.instantiateViewController(withIdentifier: "SideMenuViewController") as! SideMenuViewController
let menu = CustomSideMenuNavigation(rootViewController: sideMenuViewController)
present(menu, animated: true, completion: nil)
}
The customized view is added to the storyboard and the ui is coming out well, and I want to override showMenu function so that i can show the side menu.
How Can I Override that function by code? I'd appreciate it if you could let me know.
ViewController code is below:
class categoryToViewController: UIViewController {
#IBOutlet weak var customViewCell: ResuableCustomView!
override func viewDidLoad() {
super.viewDidLoad()
}
}
storyBoard image that adopts ResuableCustomView Class
ReusableCell.xib image

Answer 1

You can directly add the button action menuBtnClicked inside the categoryToViewController since the ReusableCustomView is placed inside this ViewController.
class categoryToViewController: UIViewController {
#IBOutlet weak var customViewCell: ResuableCustomView!
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func menuBtnClicked(_ sender: Any) {
print("pressed")
}
}

Answer 2

first you better inherit from UIControll instead of UIView.
Because you can get the event.
1- change define a class to this line:
class ResuableCustomView: UIControl { ... }
2- add to UIView to custom UIViewController and sed Custom class to ResuableCustomView:
3- create function in ViewController for get Event:
#IBAction private func customViewTapped(_ sender: ResuableCustomView) {
print("hello my friend :-)")
}
4- inside ResuableCustomView class set Action by append this line to your function:
self.sendActions(for: .touchUpInside)
this line send event for use.
Here I used type touchUpInside.
change your showMenu function to below code:
func showMenu(){
// set here callBack
self.sendActions(for: .touchUpInside) // and create event function with touchUpInside type
print("tapped")
}
5- now back to storyboard and connect IBAction to callBack like This Picture:
run and click on button and see print like this:
all code for CustomView:
// inheritance from UIControl instead of UIView
class ResuableCustomView: UIControl {
let nibName = "ReusableCustomView"
#IBOutlet weak var categoryMenuBTn: UIButton!
#IBOutlet weak var containerView: UIStackView!
func showMenu(){
// set here callBack
self.sendActions(for: .touchUpInside) // and create event function with touchUpInside type
print("tapped")
}
#IBAction func menuBtnClicked(_ sender: UIButton) {
self.showMenu()
}
#IBAction func buttonTap(_ sender: UIButton) {
print("Tappedd")
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
commonInit()
}
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
func commonInit() {
guard let view = loadViewFromNib() else { return }
view.frame = self.bounds
self.addSubview(view)
}
func loadViewFromNib() -> UIView? {
let nib = UINib(nibName: nibName, bundle: nil)
return nib.instantiate(withOwner: self, options: nil).first as? UIView
}
}
all code for ViewController:
class ViewController: UIViewController {
#IBOutlet weak var customViewCell: ResuableCustomView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
#IBAction private func customViewTapped(_ sender: ResuableCustomView) {
print("hello my friend :-)")
}
}