我正在尝试在UIMenuController
子类上使用UICollectionViewController
显示自定义操作,即使剪切,复制和粘贴操作按预期显示,出于某种原因我的自定义操作也没有。
我从网上看了很多引用,但没有一个能让它起作用,这里是代码:
class CollectionViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout {
fileprivate var items = [MyClass]()
// MARK: - UICollectionViewDataSource
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return items.count
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellIdentifier", for: indexPath)
/* update cell properties */
return cell
}
// MARK: - UICollectionViewDelegate
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: itemSize, height: itemSize)
}
override func collectionView(_ collectionView: UICollectionView, canPerformAction action: Selector, forItemAt indexPath: IndexPath, withSender sender: Any?) -> Bool {
return true
}
override func collectionView(_ collectionView: UICollectionView, performAction action: Selector, forItemAt indexPath: IndexPath, withSender sender: Any?) {
/* Do Something */
}
override func collectionView(_ collectionView: UICollectionView, shouldShowMenuForItemAt indexPath: IndexPath) -> Bool {
return true
}
public func menuAction(_ sender: UIMenuItem) {
/* Action method*/
}
}
尝试按如下方式添加菜单项:
let menuItem = UIMenuItem(title: SFLocalization.localizedString("Common-remove"), action: #selector(CollectionViewController.menuAction(_:)))
let menuController = UIMenuController.shared
// menuController.menuItems?.append(menuItem)
menuController.menuItems = [menuItem]
viewDidLoad
和collectionView(_ collectionView:, shouldShowMenuForItemAt) -> Bool
有什么想法吗?
答案 0 :(得分:0)
Omer - 请查看此链接:http://dev.glide.me/2013/05/custom-item-in-uimenucontroller-of.html
基本上,移动这些方法:
(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
(BOOL)canBecomeFirstResponder {
...到CollectionView单元子类工作。然后,您必须将此选择器传递回单元格委托。
有了这个,我就可以看到自定义菜单了!