缺少編輯屬性和setEditing：animated：在UICollectionViewCell

Question

不太可能UITableViewCell，UICollectionViewCell缺少setEditing:animated:和editing屬性。

這是設計嗎？蘋果是否正在執行其他最佳做法來處理UICollectionView及其單元格中的編輯？

Answer 1

也許這就是你需要：

子類UICollectionViewController像ABCCollectionViewController：

let vc = UINavigationController(rootViewController: ABCCollectionViewController()) 

然後在ABCCollectionViewControllerviewDidLoad：

self.navigationItem.leftBarButtonItem = self.editButtonItem 

然後覆蓋setEditting方法：

override func setEditing(_ editing: Bool, animated: Bool) { 
    super.setEditing(editing, animated: true) 

    // Use these methods to do the edit things, without test but should works 
    collectionView?.beginInteractiveMovementForItem(at: indexPath) 
    print("editting")//Do some edit thing 
    collectionView?.endInteractiveMovement() 
    collectionView.updateInteractiveMovementTargetPosition() 
    collectionView?.cancelInteractiveMovement() 
} 

然後，您可以撥打：

setEditing(true, animated: true) 

Answer 2

如果您正在編輯時改變像allowsMultipleSelection一些國家在UICollectionView：

override func setEditing(_ editing: Bool, animated: Bool) { 
    super.setEditing(editing, animated: animated) 
    collectionView.allowsMultipleSelection = editing 
} 

你可以簡單地添加到您的UICollectionViewCell子類：

var isEditing: Bool { 
    return (superview as! UICollectionView).allowsMultipleSelection 
}