我有一个 UITableView,其中一些单元格有阴影。 当我做出平移手势来查看任何单元格的行操作时,表格 View 会剪辑单元格的边界,直到手势完成。
我在单元格的 contentView
及其 super View 以及表格 View 上将 clipsToBounds
设置为 false
。
我的自定义单元格代码:
var isExpanded: Bool = false
@IBOutlet weak var shadowView: UIView!
@IBOutlet weak var fullContainer: UIView!
override func awakeFromNib() {
super.awakeFromNib()
reloadUI()
}
func reloadUI() {
contentView.superview?.clipsToBounds = false
contentView.clipsToBounds = false
fullContainer.layer.masksToBounds = true
fullContainer.layer.cornerRadius = 8
shadowView.layer.masksToBounds = false
shadowView.layer.cornerRadius = 8
shadowView.layer.shadowOpacity = 1.0
shadowView.layer.shadowOffset = CGSize(width: 0.0, height: 0.0)
shadowView.layer.shadowPath = UIBezierPath(roundedRect: fullContainer.bounds, cornerRadius: 8).cgPath
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
isExpanded = selected
reloadUI()
}
带有表格 View 的 View Controller 的代码:
extension SecondViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true
}
func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
let action = UITableViewRowAction(style: .destructive, title: "Delete") { (action, indexPath) in
tableView.deleteRows(at: [indexPath], with: .automatic)
}
return [action]
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.reloadRows(at: [indexPath], with: .automatic)
selectedIndex = indexPath.section
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return section != 0 ? 8 : 1
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let view = UIView()
view.clipsToBounds = false
return view
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
if selectedIndex == indexPath.section {
return 120
}
return 108
}
}
SecondViewController
也有此代码,因为它有一个平移识别器,用于通过手势在 View Controller 之间进行更改
extension SecondViewController: UIGestureRecognizerDelegate {
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer == recognizer || otherGestureRecognizer == recognizer {
return false
}
return true
}
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer == recognizer{
for cell in tableView.visibleCells {
let location = gestureRecognizer.location(in: cell.contentView)
if cell.contentView.layer.contains(location) {
return false
}
}
return true
}
return true
}
}
UITableViewCell 已剪切边界:
最佳答案
这看起来像是 UITableView 中的一个错误。可以通过以下扩展来解决:
extension UITableView {
func fixCellBounds() {
DispatchQueue.main.async { [weak self] in
for cell in self?.visibleCells ?? [] {
cell.layer.masksToBounds = false
cell.contentView.layer.masksToBounds = false
}
}
}
}
只需在调用reloadRows
/insertRows
/deleteRows
等后调用它:
tableView.reloadRows(at: <index paths>, with: .automatic)
tableView.fixCellBounds()
之前:
之后:
关于ios - UITableView 在动画时剪辑到边界,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45927174/