// UIButtonExtensions.swift - Copyright 2024 SwifterSwift
|
|
#if canImport(UIKit) && !os(watchOS)
|
import UIKit
|
|
// MARK: - Properties
|
|
public extension UIButton {
|
/// SwifterSwift: Image of disabled state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var imageForDisabled: UIImage? {
|
get { image(for: .disabled) }
|
set { setImage(newValue, for: .disabled) }
|
}
|
|
/// SwifterSwift: Image of highlighted state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var imageForHighlighted: UIImage? {
|
get { image(for: .highlighted) }
|
set { setImage(newValue, for: .highlighted) }
|
}
|
|
/// SwifterSwift: Image of normal state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var imageForNormal: UIImage? {
|
get { image(for: .normal) }
|
set { setImage(newValue, for: .normal) }
|
}
|
|
/// SwifterSwift: Image of selected state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var imageForSelected: UIImage? {
|
get { image(for: .selected) }
|
set { setImage(newValue, for: .selected) }
|
}
|
|
/// SwifterSwift: Image of focused state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var imageForFocused: UIImage? {
|
get { image(for: .focused) }
|
set { setImage(newValue, for: .focused) }
|
}
|
|
/// SwifterSwift: Title color of disabled state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleColorForDisabled: UIColor? {
|
get { titleColor(for: .disabled) }
|
set { setTitleColor(newValue, for: .disabled) }
|
}
|
|
/// SwifterSwift: Title color of highlighted state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleColorForHighlighted: UIColor? {
|
get { titleColor(for: .highlighted) }
|
set { setTitleColor(newValue, for: .highlighted) }
|
}
|
|
/// SwifterSwift: Title color of normal state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleColorForNormal: UIColor? {
|
get { titleColor(for: .normal) }
|
set { setTitleColor(newValue, for: .normal) }
|
}
|
|
/// SwifterSwift: Title color of selected state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleColorForSelected: UIColor? {
|
get { titleColor(for: .selected) }
|
set { setTitleColor(newValue, for: .selected) }
|
}
|
|
/// SwifterSwift: Title color of focused state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleColorForFocused: UIColor? {
|
get { titleColor(for: .focused) }
|
set { setTitleColor(newValue, for: .focused) }
|
}
|
|
/// SwifterSwift: Title of disabled state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleForDisabled: String? {
|
get { title(for: .disabled) }
|
set { setTitle(newValue, for: .disabled) }
|
}
|
|
/// SwifterSwift: Title of highlighted state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleForHighlighted: String? {
|
get { title(for: .highlighted) }
|
set { setTitle(newValue, for: .highlighted) }
|
}
|
|
/// SwifterSwift: Title of normal state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleForNormal: String? {
|
get { title(for: .normal) }
|
set { setTitle(newValue, for: .normal) }
|
}
|
|
/// SwifterSwift: Title of selected state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleForSelected: String? {
|
get { title(for: .selected) }
|
set { setTitle(newValue, for: .selected) }
|
}
|
|
/// SwifterSwift: Title of focused state for button; also inspectable from Storyboard.
|
@IBInspectable
|
var titleForFocused: String? {
|
get { title(for: .focused) }
|
set { setTitle(newValue, for: .focused) }
|
}
|
|
/// SwifterSwift: Attributed title of disabled state for button.
|
var attributedTitleForDisabled: NSAttributedString? {
|
get { attributedTitle(for: .disabled) }
|
set { setAttributedTitle(newValue, for: .disabled) }
|
}
|
|
/// SwifterSwift: Attributed title of highlighted state for button.
|
var attributedTitleForHighlighted: NSAttributedString? {
|
get { attributedTitle(for: .highlighted) }
|
set { setAttributedTitle(newValue, for: .highlighted) }
|
}
|
|
/// SwifterSwift: Attributed title of normal state for button.
|
var attributedTitleForNormal: NSAttributedString? {
|
get { attributedTitle(for: .normal) }
|
set { setAttributedTitle(newValue, for: .normal) }
|
}
|
|
/// SwifterSwift: Attributed title of selected state for button.
|
var attributedTitleForSelected: NSAttributedString? {
|
get { attributedTitle(for: .selected) }
|
set { setAttributedTitle(newValue, for: .selected) }
|
}
|
|
/// SwifterSwift: Attributed title of focused state for button.
|
var attributedTitleForFocused: NSAttributedString? {
|
get { attributedTitle(for: .focused) }
|
set { setAttributedTitle(newValue, for: .focused) }
|
}
|
}
|
|
// MARK: - Methods
|
|
public extension UIButton {
|
private var states: [UIControl.State] {
|
[.normal, .selected, .highlighted, .disabled, .focused]
|
}
|
|
/// SwifterSwift: Set image for all states.
|
///
|
/// - Parameter image: UIImage.
|
func setImageForAllStates(_ image: UIImage) {
|
states.forEach { setImage(image, for: $0) }
|
}
|
|
/// SwifterSwift: Set title color for all states.
|
///
|
/// - Parameter color: UIColor.
|
func setTitleColorForAllStates(_ color: UIColor) {
|
states.forEach { setTitleColor(color, for: $0) }
|
}
|
|
/// SwifterSwift: Set title for all states.
|
///
|
/// - Parameter title: title string.
|
func setTitleForAllStates(_ title: String) {
|
states.forEach { setTitle(title, for: $0) }
|
}
|
|
/// SwifterSwift: Set attributed title for all states.
|
///
|
/// - Parameter title: title string.
|
func setAttributedTitleForAllStates(_ title: NSAttributedString) {
|
states.forEach { setAttributedTitle(title, for: $0) }
|
}
|
|
/// SwifterSwift: Center align title text and image.
|
/// - Parameters:
|
/// - imageAboveText: set true to make image above title text, default is false, image on left of text.
|
/// - spacing: spacing between title text and image.
|
func centerTextAndImage(imageAboveText: Bool = false, spacing: CGFloat) {
|
if imageAboveText {
|
// https://stackoverflow.com/questions/2451223/#7199529
|
guard
|
let imageSize = imageView?.image?.size,
|
let text = titleLabel?.text,
|
let font = titleLabel?.font else { return }
|
|
let titleSize = text.size(withAttributes: [.font: font])
|
|
let titleOffset = -(imageSize.height + spacing)
|
titleEdgeInsets = UIEdgeInsets(top: 0.0, left: -imageSize.width, bottom: titleOffset, right: 0.0)
|
|
let imageOffset = -(titleSize.height + spacing)
|
imageEdgeInsets = UIEdgeInsets(top: imageOffset, left: 0.0, bottom: 0.0, right: -titleSize.width)
|
|
let edgeOffset = abs(titleSize.height - imageSize.height) / 2.0
|
contentEdgeInsets = UIEdgeInsets(top: edgeOffset, left: 0.0, bottom: edgeOffset, right: 0.0)
|
} else {
|
let insetAmount = spacing / 2
|
imageEdgeInsets = UIEdgeInsets(top: 0, left: -insetAmount, bottom: 0, right: insetAmount)
|
titleEdgeInsets = UIEdgeInsets(top: 0, left: insetAmount, bottom: 0, right: -insetAmount)
|
contentEdgeInsets = UIEdgeInsets(top: 0, left: insetAmount, bottom: 0, right: insetAmount)
|
}
|
}
|
|
/// SwifterSwift: Set background color for specified state.
|
/// - Parameters:
|
/// - color: The color of the image that will be set as background for the button in the given state.
|
/// - forState: set the UIControl.State for the desired color.
|
func setBackgroundColor(color: UIColor, forState: UIControl.State) {
|
clipsToBounds = true // maintain corner radius
|
|
let colorImage = UIGraphicsImageRenderer(size: CGSize(width: 1, height: 1)).image { context in
|
color.setFill()
|
context.fill(CGRect(x: 0, y: 0, width: 1, height: 1))
|
draw(.zero)
|
}
|
setBackgroundImage(colorImage, for: forState)
|
}
|
}
|
|
#endif
|
