ios - 圆形 UITableViewCell 仅底部或顶部角，但它不适用于 Swift iOS 10

Question

我想像这样圆化 2 个 UITableViewCell 的顶角和底角:这就是我在 iOS 11 上得到的

What I want

但我在 iOS 10 上得到了这个:

Result rectShape.bounds = self.bounds

使用该代码:

蓝色 View 的UITableViewCell

import UIKit

class ProductDescriptionTableViewCell: UITableViewCell {

var ProductDescription: UITextView!
public var container: UIView!

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

override func layoutSubviews() {
    // Set the width of the cell
   self.bounds = CGRect(x: self.bounds.origin.y + 16, y: self.bounds.origin.y, width: self.bounds.size.width - 16, height: self.bounds.size.height)

    super.layoutSubviews()
}

override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)

    self.backgroundColor = UIColor.blue
    if #available(iOS 11.0, *) {
        self.layer.masksToBounds = true
        self.layer.cornerRadius = 10
        self.layer.maskedCorners = [.layerMinXMaxYCorner, .layerMaxXMaxYCorner]
    } else {
        let rectShape = CAShapeLayer()
        rectShape.bounds = self.bounds// CGRect(x: self.bounds.origin.x + 16, y: self.bounds.origin.y, width: self.bounds.size.width - 16, height: self.bounds.size.height)
        rectShape.position = self.center
        rectShape.path = UIBezierPath(roundedRect:  rectShape.bounds, byRoundingCorners: [.bottomRight, .bottomLeft], cornerRadii: CGSize(width: 10, height: 10)).cgPath

        self.layer.backgroundColor = UIColor.red.cgColor
        //Here I'm masking the textView's layer with rectShape layer
        self.layer.mask = rectShape
    }
}
}

紫色 View 的UITableViewCell

import UIKit

class ProductTitleTableViewCell: UITableViewCell {

var ProductTitle: UILabel!

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

override func layoutSubviews() {
    // Set the width of the cell
    self.bounds = CGRect(x: self.bounds.origin.y + 16, y: self.bounds.origin.y, width: self.bounds.size.width - 16, height: self.bounds.size.height)

    super.layoutSubviews()
}

override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)

    self.backgroundColor = UIColor.purple

    if #available(iOS 11.0, *) {
        self.layer.masksToBounds = true
        self.layer.cornerRadius = 10
        self.layer.maskedCorners = [.layerMaxXMinYCorner, .layerMinXMinYCorner]
    } else {
        let rectShape = CAShapeLayer()
         rectShape.bounds = self.bounds//CGRect(x: self.bounds.origin.x + 16, y: self.bounds.origin.y, width: self.bounds.size.width - 16, height: self.bounds.size.height)
         rectShape.position = self.center
         rectShape.path = UIBezierPath(roundedRect:  rectShape.bounds, byRoundingCorners: [.topLeft, .topRight], cornerRadii: CGSize(width: 10, height: 10)).cgPath

         self.layer.backgroundColor = UIColor.green.cgColor
         //Here I'm masking the textView's layer with rectShape layer
         self.layer.mask = rectShape
    }
}
}

如果我在评论中用 CGRect 替换 self.bounds 我明白了:

With rectShape.bounds = CGRect(x: self.bounds.origin.x + 16, y: self.bounds.origin.y, width: self.bounds.size.width - 16, height: self.bounds.size.height)

我尝试在 init() 的开头更改 self.bounds，但它也不起作用

我也尝试将改变角的代码放在 layoutSubviews() 中，但在这种情况下 UITableViewCell 消失了

我不想只使用一个 UITableViewCell 并绕过他的角我真的需要绕过底角和顶角以分隔 UITableViewCell

如果您知道我该如何解决，我将不胜感激谢谢你的时间

Answer 1

添加以下扩展:

func roundCorners(_ corners:UIRectCorner, radius: CGFloat) {
    let path = UIBezierPath(roundedRect: self.bounds, byRoundingCorners: corners, cornerRadii: CGSize(width: radius, height: radius))
    let mask = CAShapeLayer()
    mask.path = path.cgPath
    self.layer.mask = mask
}

然后像下面这样从布局 subview 中调用它:

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    headerView.roundCorners([UIRectCorner.topLeft, UIRectCorner.topRight], radius: kTableViewCornerRadius)
}