我已經創建了兩個自定義類:CutomView類(UIView的子類)和CustomButton類(UIButton的子類)。iOS中的CustomView和CustomButton
class CustomView: UIView {
override func drawRect(rect: CGRect) {
// Drawing code
layer.masksToBounds = true
layer.borderWidth = 2.0
layer.borderColor = UIColor(colorLiteralRed: 0.0/255, green: 64.0/255, blue: 128.0/255, alpha: 1).CGColor
layer.cornerRadius = 10.0
let startColor = UIColor(colorLiteralRed: 255.0/255, green: 204.0/255, blue: 1.0, alpha: 1.0).CGColor
let endColor = UIColor(colorLiteralRed: 0, green: 128.0/255, blue: 1.0, alpha: 1.0).CGColor
let gradientLayer = CAGradientLayer()
gradientLayer.frame = CGRect(origin: layer.frame.origin, size: layer.frame.size)
gradientLayer.colors = [startColor, endColor];
layer.addSublayer(gradientLayer)
}
和
@IBDesignable
class CustomButton: UIButton {
override func drawRect(rect: CGRect) {
// Drawing code
layer.masksToBounds = true
layer.borderWidth = 2.0
layer.borderColor = UIColor(colorLiteralRed: 0.0/255, green: 64.0/255, blue: 128.0/255, alpha: 1).CGColor
layer.cornerRadius = 2.0
let startColor = UIColor(colorLiteralRed: 192.0/255, green: 192.0/255, blue: 192.0/255, alpha: 1.0).CGColor
let endColor = UIColor(colorLiteralRed: 239.0/255, green: 239.0/255, blue: 239.0/255, alpha: 1.0).CGColor
let gradientLayer = CAGradientLayer()
gradientLayer.frame = CGRect(origin: layer.frame.origin, size: layer.frame.size)
gradientLayer.colors = [startColor, endColor];
layer.addSublayer(gradientLayer)
}
}
我使用的那些定製子類來設計視圖和按鈕。當我查看應用的自定義類時,它們工作正常,但由於某些原因,該按鈕在模擬器或iOS設備中不可見。
如果有人能指向我的錯誤或幫我修復它,那將是非常棒的。
Storyboard and Preview shows the purple blue background and button
Simulator only displays purple blue background
如何ü在你的代碼中添加按鈕?更新代碼或嘗試使用button.settile方法設置標題 –
@Shobhakar Tiwari我正在使用故事板添加按鈕並將該類設置爲CustomButton for button。 – Roshan
okey所以按鈕沒有顯示在故事板上,是否在故事板中設置了ibdesignable屬性 –