Accessing subView from View Controller without extra delegates - ios

Question

I have a "View Controller" and a "Main View", now I have a "child view" that creates a custom view that returns a switch and a label related to that, and I add several of these custom views to my Main View. My question : Is there anyway possible to set button target and access these child views with only setting the delegate in parent View? or each of them needs it own delegate?
child View:
import UIKit
class RowView: UIView {
var title: String
var isOn: Bool
init(title: String, isOn: Bool) {
self.title = title
self.isOn = isOn
super.init(frame: .zero)
setupViews()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
let myLabel: UILabel = {
let label = UILabel()
label.font = UIFont.systemFont(ofSize: 14)
label.textColor = .black
label.textAlignment = .center
return label
}()
public let mySwitch:UISwitch = {
let mySwitch = UISwitch()
mySwitch.layer.borderColor = UIColor.white.cgColor
mySwitch.layer.borderWidth = 0.8
mySwitch.layer.cornerRadius = 14
// mySwitch.tag = num
return mySwitch
}()
func setupViews() {
myLabel.text = title
mySwitch.isOn = isOn
addSubview(myLabel)
addSubview(mySwitch)
myLabel.anchor(top: topAnchor, leading: leadingAnchor, bottom: nil, trailing: nil, paddingTop: 0, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: 0, height: 0)
mySwitch.anchor(top: nil, leading: nil, bottom: nil, trailing: trailingAnchor, paddingTop: 0, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: 0, height: 0)
mySwitch.centerYAnchor.constraint(equalTo: myLabel.centerYAnchor).isActive = true
}
// this is the suggested size for this view
override var intrinsicContentSize: CGSize {
return CGSize(width: 350, height: 31)
}
}
Parent View:
import UIKit
protocol settingDelegate: AnyObject {
func removeAllFavorites()
//func activateNotification(isOn: Bool)
//func allowNotificationAlert(isOn: Bool)
}
class SettingView: UIView {
//MARK: - Properties
var delegate: settingDelegate?
var notifView: UIView?
var alertView: UIView?
let deleteButton: UIButton = {
let button = UIButton(type: .system)
button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 18)
button.setTitle("Delete Favorite Quotes", for: .normal)
button.backgroundColor = UIColor.red
button.setTitleColor(.white, for: .normal)
button.layer.cornerRadius = 5
button.titleLabel?.adjustsFontSizeToFitWidth = true // adjust button text to the size
button.titleLabel?.minimumScaleFactor = 0.5 // make it 50% smaller at max
button.contentEdgeInsets = UIEdgeInsets(top: 16, left: 16, bottom: 16, right: 16)
button.addTarget(self, action: #selector(deleteHandler), for: .touchUpInside)
button.setContentHuggingPriority(UILayoutPriority(1000), for: .horizontal)
return button
}()
//MARK: - Initializers
override init(frame: CGRect) {
super.init(frame: frame)
setupViews()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
//MARK: - Helper Methods
func setupViews() {
backgroundColor = .white
notifView = RowView(title: "Show day's quote as a notification", isOn: false)
alertView = RowView(title: "Ring an alert when notification is played", isOn: false)
guard let notifView = notifView, let alertView = alertView else { return }
let switchStack = UIStackView(arrangedSubviews: [notifView, alertView])
switchStack.axis = .vertical // stackVer.axis = .vertical
switchStack.distribution = .equalCentering
switchStack.alignment = .leading
switchStack.spacing = 20
let stack = UIStackView(arrangedSubviews: [switchStack, deleteButton])
stack.axis = .vertical
stack.distribution = .equalSpacing
stack.alignment = .center
stack.spacing = 20
addSubview(stack)
stack.anchor(top: safeAreaLayoutGuide.topAnchor, leading: leadingAnchor, bottom: safeAreaLayoutGuide.bottomAnchor, trailing: trailingAnchor, paddingTop: 20, paddingLeft: 10, paddingBottom: 20, paddingRight: 10, width: 0, height: 0)
}
#objc func deleteHandler() {
guard let delegate = delegate else { return }
delegate.removeAllFavorites()
}
#objc func switchChanged(mySwitch: UISwitch) {
print("changed")
}
}

Answer 1

You need 1 delegate and differentiate with a tag
notifView = RowView(title: "Show day's quote as a notification", isOn: false)
alertView = RowView(title: "Ring an alert when notification is played", isOn: false)
notifView.tag = 10
alertView.tag = 11
--- you can do
notifView.addGestureRecognizer(UITapGestureRecognizer(target: self.delegate!, action: #selector(self.delegate!.methodClick)))