How to add uibutton action in a collection view cell?

问题

So I have this collection view with cells containing an edit button, located on the upper right corner. How do I wire up an action into it?

I tried adding cell.editbutton.addTarget in collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell But it doesn't detect the touchUpInside Event.

回答1:

May be needful for you-

Write this code in cellForItemAtIndexPath

Swift 2.X

let editButton = UIButton(frame: CGRectMake(0, 20, 40,40))
editButton.setImage(UIImage(named: "editButton.png"), forState: UIControlState.Normal)
editButton.addTarget(self, action: #selector(editButtonTapped), forControlEvents: UIControlEvents.TouchUpInside)

cell.addSubview(editButton)

Swift 3.X

let editButton = UIButton(frame: CGRect(x:0, y:20, width:40,height:40))
editButton.setImage(UIImage(named: "editButton.png"), for: UIControlState.normal)
editButton.addTarget(self, action: #selector(editButtonTapped), for: UIControlEvents.touchUpInside)

cell.addSubview(editButton)

And perform your action-

override func viewDidLoad() {
       super.viewDidLoad()
}

@IBAction func editButtonTapped() -> Void {
    print("Hello Edit Button")
}

回答2:

Create the outlet of your UIButton in UICollectionViewCell, write In

func collectionView(_ collectionView: UICollectionView, 
                    cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    cell.button.tag = indexPath.row
    cell.button.addTarget(self, 
        action: #selector(self.yourFunc(), 
        for: .touchUpInside)
}

func yourFunc(sender : UIButton){
    print(sender.tag)
}

Make sure userInteraction is enable for the button as well as for UICollectionViewCell.

回答3:

On UICollectionView cell take button (Programmatically or using storyboard). Add action for that button in cell class file and declare delegate in that cell class file and call same delegate in button action method to perform edit action.

Then implement same delegate in ViewController in which you have created collection view

回答4:

protocol CollectionViewCellDelegte {
    func collectionViewCellDelegte(didClickButtonAt index: Int)
}

class ImageCollectionViewCell: UICollectionViewCell {
    var index = 0
    var delegte: CollectionViewCellDelegte? = nil

    @IBAction func buttonAction(_ sender: UIButton) {
        if let del = self.delegte {
            del.collectionViewCellDelegte(didClickButtonAt: index)
        }
    }
}

回答5:

As I understood, you want to invoke edit button action instead of didSelectItemAt:indexPath. I solved this by override canBecomeFocused (return false), then your edit button action will be involved by tapping on edit button

来源：https://stackoverflow.com/questions/41456441/how-to-add-uibutton-action-in-a-collection-view-cell

标签

swift

uibutton

uicollectionview

swift3

uicollectionviewcell