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func configureGradientView() {
let color1 = topColor ?? self.tintColor as UIColor
let color2 = bottomColor ?? UIColor.black as UIColor
let colors: Array <AnyObject> = [ color1.cgColor, color2.cgColor ]
let layer = self.layer as! CAGradientLayer
layer.colors = colors
layer.startPoint = CGPointMake(startX, startY)
layer.endPoint = CGPointMake(endX, endY)
}
誰もが私はCGPointMake
ここは完全なクラスです。
@IBDesignable public class XGradientView: UIView {
@IBInspectable public var topColor: UIColor? {
didSet {
configureGradientView()
}
}
@IBInspectable public var bottomColor: UIColor? {
didSet {
configureGradientView()
}
}
@IBInspectable var startX: CGFloat = 0.0 {
didSet{
configureGradientView()
}
}
@IBInspectable var startY: CGFloat = 1.0 {
didSet{
configureGradientView()
}
}
@IBInspectable var endX: CGFloat = 0.0 {
didSet{
configureGradientView()
}
}
@IBInspectable var endY: CGFloat = 0.0 {
didSet{
configureGradientView()
}
}
public class func layeredClass() -> AnyClass {
return CAGradientLayer.self
}
public required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
configureGradientView()
}
override init(frame: CGRect) {
super.init(frame: frame)
configureGradientView()
}
public override func tintColorDidChange() {
super.tintColorDidChange()
configureGradientView()
}
func configureGradientView() {
let color1 = topColor ?? self.tintColor as UIColor
let color2 = bottomColor ?? UIColor.black as UIColor
let colors: Array <AnyObject> = [ color1.cgColor, color2.cgColor ]
let layer = self.layer as! CAGradientLayer
layer.colors = colors
layer.startPoint = CGPointMake(startX, startY)
layer.endPoint = CGPointMake(endX, endY)
}
}
まず、Googleはあなたが 'するCGPoint(X view.bounds.midY:view.bounds.midX、y)を使用することができます@MartinR ...' 'CGPointMakeは' 迅速3'で使用できないため –
を打つ代わりに ' 。 – Linus