ios - 阴影不适用于顶部 Tableview 的圆角

Question

你好，在我的情况下，我正在使用两个条件，一个是仅在顶部的阴影之后制作圆角的顶 View ，只有一个条件有效，如果我为阴影添加代码它不起作用，但我删除了角落代码然后阴影作品请指导我

对于圆角，我正在使用这个扩展

extension UIView {
    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
}

和阴影

func shadowToUIView( uiview : UIView){
    uiview.layer.shadowColor = UIColor.darkGray.cgColor
    uiview.layer.shadowOpacity = 0.50
    uiview.layer.shadowOffset = CGSize(width: 1, height: 1)
    uiview.layer.shadowRadius = 5
    uiview.layer.shouldRasterize = false
}

在行的单元格中我正在使用这个

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! HomeTableViewCell
    cell.firstView.roundCorners(corners: [.topLeft,.topRight], radius: 25.0)
    shadowToUIView(uiview: cell.firstView)
    HomeMenu.openMenuCard(cell:cell, indexPath:indexPath, firstViewMain:firstViewMain, openedTab: openedTab)
    return cell
}

添加回复代码后

Answer 1

下面是使 UIView 带有阴影的圆形的方法:

extension UIView {
  func addShadow(cornerRadius: CGFloat, maskedCorners: CACornerMask, color: UIColor, offset: CGSize, opacity: Float, shadowRadius: CGFloat) {
    self.layer.cornerRadius = cornerRadius
    self.layer.maskedCorners = maskedCorners
    self.layer.shadowColor = color.cgColor
    self.layer.shadowOffset = offset
    self.layer.shadowOpacity = opacity
    self.layer.shadowRadius = shadowRadius
  }
}

使用:为了圆化所有的角落:

<your_view_object>.addShadow(cornerRadius: 10.0, maskedCorners: [.layerMaxXMaxYCorner, .layerMinXMaxYCorner, .layerMaxXMinYCorner, .layerMinXMinYCorner], color: AppColors.themeBlack.withAlphaComponent(0.6), offset: CGSize.zero, opacity: 0.4, shadowRadius: 4.0)

仅圆顶角:

<your_view_object>.addShadow(cornerRadius: 10.0, maskedCorners: [.layerMaxXMinYCorner, .layerMinXMinYCorner], color: AppColors.themeBlack.withAlphaComponent(0.6), offset: CGSize.zero, opacity: 0.4, shadowRadius: 4.0)

仅对底角进行舍入:

<your_view_object>.addShadow(cornerRadius: 10.0, maskedCorners: [.layerMaxXMaxYCorner, .layerMinXMaxYCorner], color: AppColors.themeBlack.withAlphaComponent(0.6), offset: CGSize.zero, opacity: 0.4, shadowRadius: 4.0)

为了根据您的要求更改其他参数来制作阴影。