我試圖在UICollectionViewController
子類上使用UIMenuController
來顯示自定義操作,即使剪切,複製和粘貼操作按預期顯示,出於某種原因,我的自定義操作沒有。UIMenuController未在UICollectionViewController子類上顯示自定義操作
我跟很多從網站引用的,但他們沒有做它的工作,這裏的代碼:
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*/
}
}
試過如下添加菜單項:
let menuItem = UIMenuItem(title: SFLocalization.localizedString("Common-remove"), action: #selector(CollectionViewController.menuAction(_:)))
let menuController = UIMenuController.shared
// menuController.menuItems?.append(menuItem)
menuController.menuItems = [menuItem]
兩個
viewDidLoad
和collectionView(_ collectionView:, shouldShowMenuForItemAt) -> Bool
任何想法?
遇到類似的問題;你有沒有找到解決方案的運氣? –