Swfit 3：如何通过按钮操作获取单元格中的所有项目？

Question

I have a button in my cell and I want to get all of the items in the cell with this button.

I tried this code, but it doesn't work. I hope you can get the idea that I want to do.

@IBAction func addToCardAction(_ sender: UIButton) {
    let cell = tableView.dequeueReusableCell(withIdentifier: "menuCell", for: menuTableView.indexPathForSelectedRow) as! SiparisVerTableViewCell
    print(cell.countLabel)

Answer 1

If your button is in the cell itself, then things are really easy.

The super view of your button would be the content view of the table view cell and the super view of that will be the UITableViewCell itself.

So your method should look like this:

@IBAction func addToCardAction(_ sender: UIButton) {
    let cell = sender.superview?.superview as! SiparisVerTableViewCell
    print(cell.countLabel)
}

tableView.dequeueReusableCell will just create a new cell, so using it here will not do what you want.

Answer 2

you can create protocol

protocol DataPasser: NSObjectProtocol {
    func passData(...any parameters)
}

your UIViewController should

extension MyViewController: DataPasser {
    func passData(...any parameters) {
        //manipulate it
    }
}

inside your UITableViewCell create

weak var dataDelegate: DataPasser?

link your UIButton action to your cell and inside it do

self.dataDelegate?.passData(...any parameters)

and inside cellForRow of your UIViewController do

cell.dataDelegate = self