ios - iOS 13 上 Segment Control 的 SelectedTintColor 不是圆角
问题描述
圆角在 iOS 12 及更低版本上运行良好,但在 iOS 13 上已损坏。我创建了一个自定义 Segment 控件类。
代码:
class SegmentedControl: UISegmentedControl {
override func layoutSubviews() {
super.layoutSubviews()
layer.cornerRadius = self.bounds.size.height / 2.0
layer.borderColor = UIColor(red: 170.0/255.0, green: 170.0/255.0, blue: 170.0/255.0, alpha: 1.0).cgColor
layer.borderWidth = 1.0
layer.masksToBounds = true
clipsToBounds = true
}
}
我已经阅读了这篇文章 -如何在 iOS 13 中更改 UISegmentedControl 中段的颜色? 但我无法得到任何解决方案。
解决方案
与其他解决方案类似,我有以下子类段控制
UISegmentedControl
这给出了以下结果 -
class OYSegmentControl: UISegmentedControl {
override func layoutSubviews(){
super.layoutSubviews()
let segmentStringSelected: [NSAttributedString.Key : Any] = [
NSAttributedString.Key.font : UIFont.fontActionLabel(ofSize: 14.0),
NSAttributedString.Key.foregroundColor : UIColor.white
]
let segmentStringHighlited: [NSAttributedString.Key : Any] = [
NSAttributedString.Key.font : UIFont.fontActionLabel(ofSize: 14.0),
NSAttributedString.Key.foregroundColor : #colorLiteral(red: 0.5567105412, green: 0.5807551742, blue: 0.6022000909, alpha: 1)
]
setTitleTextAttributes(segmentStringHighlited, for: .normal)
setTitleTextAttributes(segmentStringSelected, for: .selected)
setTitleTextAttributes(segmentStringHighlited, for: .highlighted)
layer.masksToBounds = true
if #available(iOS 13.0, *) {
selectedSegmentTintColor = #colorLiteral(red: 0, green: 0.861200273, blue: 0.67304039, alpha: 1)
} else {
tintColor = #colorLiteral(red: 0, green: 0.861200273, blue: 0.67304039, alpha: 1)
}
backgroundColor = #colorLiteral(red: 0.9191747308, green: 0.9334954619, blue: 0.9506797194, alpha: 1)
//corner radius
let cornerRadius = bounds.height / 2
let maskedCorners: CACornerMask = [.layerMinXMinYCorner, .layerMinXMaxYCorner, .layerMaxXMinYCorner, .layerMaxXMaxYCorner]
//background
clipsToBounds = true
layer.cornerRadius = cornerRadius
layer.maskedCorners = maskedCorners
let foregroundIndex = numberOfSegments
if subviews.indices.contains(foregroundIndex),
let foregroundImageView = subviews[foregroundIndex] as? UIImageView {
foregroundImageView.image = UIImage()
foregroundImageView.clipsToBounds = true
foregroundImageView.layer.masksToBounds = true
foregroundImageView.backgroundColor = #colorLiteral(red: 0, green: 0.861200273, blue: 0.67304039, alpha: 1)
foregroundImageView.layer.cornerRadius = bounds.height / 2 + 5
foregroundImageView.layer.maskedCorners = maskedCorners
}
}
override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
return false
}
}
语:Swift 5.1
注意:这仅在您从 Storyboard 设置插座/框架时才有效。来自代码的框架会导致问题。cornerRadius 上额外的 5 px,一个 hack 以使其更好地圆形矩形。我最终使用了 - https://github.com/alokc83/MASegmentedControl,因为我的用例来自仅代码视图。