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Merge pull request #1 from iznv/stepper_customization 

Stepper customisation
This commit is contained in:
Ivan Zinovyev 2018-11-01 23:15:18 +06:00 committed by GitHub
parent 4bb23e79aa 719830b81e
commit 3c81fa9ade
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2 changed files with 42 additions and 28 deletions
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2
GMStepper.podspec
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@ -1,6 +1,6 @@
Pod::Spec.new do |s|
s.name = "GMStepper"
s.version = "2.2"
s.version = "2.2.1"
s.summary = "A stepper with a sliding label in the middle."
s.homepage = "https://github.com/gmertk/GMStepper"
s.screenshots = "https://raw.githubusercontent.com/gmertk/GMStepper/master/Screenshots/screenshot_1.gif"

68
GMStepper/GMStepper.swift
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@ -15,6 +15,8 @@ import UIKit
didSet {
value = min(maximumValue, max(minimumValue, value))
handleIsLimitReached()
label.text = formattedValue
if oldValue != value {
@ -35,7 +37,6 @@ import UIKit
}
}
/// Minimum value. Must be less than maximumValue. Defaults to 0.
@objc @IBInspectable public var minimumValue: Double = 0 {
didSet {
@ -67,29 +68,37 @@ import UIKit
}
}
/// Text on the left button. Be sure that it fits in the button. Defaults to "−".
@objc @IBInspectable public var leftButtonText: String = "−" {
/// Image on the left button. Defaults to nil.
@objc @IBInspectable public var leftButtonImage: UIImage? = nil {
didSet {
leftButton.setTitle(leftButtonText, for: .normal)
leftButton.setImage(leftButtonImage, for: .normal)
}
}
/// Text on the right button. Be sure that it fits in the button. Defaults to "+".
@objc @IBInspectable public var rightButtonText: String = "+" {
/// Image on the right button. Defaults to nil.
@objc @IBInspectable public var rightButtonImage: UIImage? = nil {
didSet {
rightButton.setTitle(rightButtonText, for: .normal)
rightButton.setImage(rightButtonImage, for: .normal)
}
}
/// Text color of the buttons. Defaults to white.
@objc @IBInspectable public var buttonsTextColor: UIColor = UIColor.white {
/// Left button content insets. Defaults to ".zero".
@objc @IBInspectable public var leftButtonContentInsets: UIEdgeInsets = .zero {
didSet {
for button in [leftButton, rightButton] {
button.setTitleColor(buttonsTextColor, for: .normal)
}
leftButton.contentEdgeInsets = leftButtonContentInsets
}
}
/// Right button content insets. Defaults to ".zero".
@objc @IBInspectable public var rightButtonContentInsets: UIEdgeInsets = .zero {
didSet {
rightButton.contentEdgeInsets = rightButtonContentInsets
}
}
/// Left button limit opacity. Defaults to "0.4".
@objc @IBInspectable public var leftButtonLimitOpacity: CGFloat = 0.4
/// Background color of the buttons. Defaults to dark blue.
@objc @IBInspectable public var buttonsBackgroundColor: UIColor = UIColor(red:0.21, green:0.5, blue:0.74, alpha:1) {
didSet {
@ -100,14 +109,8 @@ import UIKit
}
}
/// Font of the buttons. Defaults to AvenirNext-Bold, 20.0 points in size.
@objc public var buttonsFont = UIFont(name: "AvenirNext-Bold", size: 20.0)! {
didSet {
for button in [leftButton, rightButton] {
button.titleLabel?.font = buttonsFont
}
}
}
/// Label tap closure
@objc public var didTouchLabel: ((Double) -> Void)?
/// Text color of the middle label. Defaults to white.
@objc @IBInspectable public var labelTextColor: UIColor = UIColor.white {
@ -188,10 +191,8 @@ import UIKit
lazy var leftButton: UIButton = {
let button = UIButton()
button.setTitle(self.leftButtonText, for: .normal)
button.setTitleColor(self.buttonsTextColor, for: .normal)
button.setImage(self.leftButtonImage, for: .normal)
button.backgroundColor = self.buttonsBackgroundColor
button.titleLabel?.font = self.buttonsFont
button.addTarget(self, action: #selector(GMStepper.leftButtonTouchDown), for: .touchDown)
button.addTarget(self, action: #selector(GMStepper.buttonTouchUp), for: .touchUpInside)
button.addTarget(self, action: #selector(GMStepper.buttonTouchUp), for: .touchUpOutside)
@ -201,10 +202,8 @@ import UIKit
lazy var rightButton: UIButton = {
let button = UIButton()
button.setTitle(self.rightButtonText, for: .normal)
button.setTitleColor(self.buttonsTextColor, for: .normal)
button.setImage(self.rightButtonImage, for: .normal)
button.backgroundColor = self.buttonsBackgroundColor
button.titleLabel?.font = self.buttonsFont
button.addTarget(self, action: #selector(GMStepper.rightButtonTouchDown), for: .touchDown)
button.addTarget(self, action: #selector(GMStepper.buttonTouchUp), for: .touchUpInside)
button.addTarget(self, action: #selector(GMStepper.buttonTouchUp), for: .touchUpOutside)
@ -225,6 +224,8 @@ import UIKit
let panRecognizer = UIPanGestureRecognizer(target: self, action: #selector(GMStepper.handlePan))
panRecognizer.maximumNumberOfTouches = 1
label.addGestureRecognizer(panRecognizer)
let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(GMStepper.handleLabelTap))
label.addGestureRecognizer(tapRecognizer)
return label
}()
@ -296,6 +297,7 @@ import UIKit
addSubview(rightButton)
addSubview(label)
handleIsLimitReached()
backgroundColor = buttonsBackgroundColor
layer.cornerRadius = cornerRadius
clipsToBounds = true
@ -407,6 +409,10 @@ extension GMStepper {
}
}
@objc func handleLabelTap() {
didTouchLabel?(value)
}
@objc func reset() {
panState = .Stable
stepperState = .Stable
@ -437,7 +443,6 @@ extension GMStepper {
stepperState = .ShouldDecrease
animateSlideLeft()
}
}
@objc func rightButtonTouchDown(button: UIButton) {
@ -519,6 +524,15 @@ extension GMStepper {
}
}
private extension GMStepper {
func handleIsLimitReached() {
let isLimitReached = value == minimumValue
leftButton.alpha = isLimitReached ? leftButtonLimitOpacity : 1
leftButton.isUserInteractionEnabled = !isLimitReached
}
}
extension Decimal {
var significantFractionalDecimalDigits: Int {