Closure array parameter in function - arrays

Question

I need to make a function that takes in an array of buttons and an array of closures. In the end, I am aiming to attach to each button an action from the array, and set up each button in my notification. Here's my function:
func makeButtons(buttons: [UIButton], withActions actions: [() -> Void]){
var bottomAnchor: NSLayoutYAxisAnchor?
bottomAnchor = notificationView.bottomAnchor
buttons.forEach({ (button) in
button.actionHandle(controlEvent: .touchUpInside, action: actions[buttons.index(of: button)!])
notificationView.addSubview(button)
button.bottomAnchor.constraint(equalTo: bottomAnchor!, constant: -20).isActive = true
button.rightAnchor.constraint(equalTo: notificationView.rightAnchor, constant: -20).isActive = true
button.leftAnchor.constraint(equalTo: notificationView.leftAnchor, constant: 20).isActive = true
button.heightAnchor.constraint(equalToConstant: 40).isActive = true
bottomAnchor = button.topAnchor
})
}
I am indeed using an extension to be able to add a closure for UIButton target using actionHandle(). I got it off Stack. Here's that:
extension UIButton {
private func actionHandleBlock(action:(() -> Void)? = nil) {
struct __ {
static var action :(() -> Void)?
}
if action != nil {
__.action = action
} else {
__.action?()
}
}
#objc private func triggerActionHandleBlock() {
self.actionHandleBlock()
}
func actionHandle(controlEvent control: UIControlEvents, action:#escaping () -> Void) {
self.actionHandleBlock(action: action)
self.addTarget(self, action: #selector(triggerActionHandleBlock), for: control)
}
}
Also, here's how I'm using the make Buttons function:
func setButtonsWithAction(){
let button1 = UIButton()
let button2 = UIButton()
addButtons(buttons: [button1, button2], withActions: [self.sayHi, self.sayGoodbye])
}
func sayHi(){
print("Hi there")
}
func sayGoodbye(){
print("Goodbye")
}
All sets up ok, just as I want. However, the problem I am facing is that regardless on which button I click, it performs the last function from my closure array. So in this case it prints "Goodbye" regardless of which button I click.
What I need is:
click button1 -> print Hi
click button2 -> print Goodbye
What is the problem, I can't seem to figure this out.

Answer 1

This should definitely show you the way.
Let me know how it goes.
fileprivate func toolbarButton(title: String, closure: Selector ) -> UIButton {
let button = UIButton(type: .system)
button.setTitle(title, for: .normal)
button.tintColor = .darkGray
button.addTarget(self, action: closure, for: .touchUpInside)
return button
}
use like this:
lazy var nearButton = toolbarButton(title: "Near Me", closure: #selector(handleToolButtonNear))