Creating custom UIControl subclasses in Swift allows developers to build unique and reusable user interface components tailored to specific needs. This guide will walk you through the process of creating a simple custom button control that changes color when tapped.
import UIKit
class ColorChangingButton: UIControl {
private var buttonColor: UIColor = .blue {
didSet {
self.backgroundColor = buttonColor
}
}
override init(frame: CGRect) {
super.init(frame: frame)
setupButton()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setupButton()
}
private func setupButton() {
self.backgroundColor = buttonColor
self.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
}
@objc private func buttonTapped() {
buttonColor = buttonColor == .blue ? .red : .blue
sendActions(for: .valueChanged)
}
}
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