Swift-如何从UITableViewCell中的按钮调用UIVIewController

Question

I have a UITableViewCell (.xib) and in this cell i have a Button, When pressed the button i would like to open a UIViewController .

The icon is my button

In my TableViewController :

class DetalhaConsultaServidorViewController: UITableViewController {

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
...

    let cell = Bundle.main.loadNibNamed("HistoricoClienteServidorTableViewCell", owner: self, options: nil)?.first as! HistoricoClienteServidorTableViewCell

...
    return cell
}

and my CustomCell class:

class HistoricoClienteServidorTableViewCell: UITableViewCell {

    @IBAction func actionButton(_ sender: Any) {

        //how open a UIViewController (xib or main.storyboard)?
    }
    ...

How open a UIViewController (xib or main.storyboard)?

Thanks!

Answer 1

You can use delegate pattern for this use case,

Your tableViewCell :

protocol HistoricoClienteServidorTableViewCellDelegate {
    func didButtonPressed()
}

class HistoricoClienteServidorTableViewCell: UITableViewCell {
    var delegate: HistoricoClienteServidorTableViewCellDelegate?

    @IBAction func actionButton(_ sender: Any) {
       delegate?.didButtonPressed()
    }
}

Your ViewController :

class DetalhaConsultaServidorViewController: UITableViewController {

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    ...

    let cell = Bundle.main.loadNibNamed("HistoricoClienteServidorTableViewCell", owner: self, options: nil)?.first as! HistoricoClienteServidorTableViewCell

    cell.delegate = self
    return cell
}

extension DetalhaConsultaServidorViewController: HistoricoClienteServidorTableViewCellDelegate {

      func didButtonPressed() {
          // Push or present your view controller
      }

}

Thanks.

Answer 2

You need to add UIButton action in cellForRowAt method like below:

cell.actionButton.addTarget(self, action: #selector(btnOpenCaseTapped), for: .touchUpInside)

Add UIButton Action in DetalhaConsultaServidorViewController ViewController like below:

@objc func btnOpenCaseTapped() {
    self.performSegue(withIdentifier: "YourSegueIdentifire", sender: nil)
}

Answer 3

 @IBAction func actionButton(_ sender: Any) {

       let storyBoard = UIStoryboard(name: "Main", bundle: nil)
       let vc = storyBoard.instantiateViewController(withIdentifier: "your view controller identifier") as! your vc 
       self.present(vc,animated:true,completion: nil)
    }

try this hope it may help.

Answer 4

You can declare IBAction of button in cellForRowAtIndexPath itself.

Here in your code....

class DetalhaConsultaServidorViewController: UITableViewController {

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = Bundle.main.loadNibNamed("HistoricoClienteServidorTableViewCell", owner: self, options: nil)?.first as! HistoricoClienteServidorTableViewCell
    cell.myButton.addTarget(self, action:  #selector(yourButtonTapMethod:), forControlEvents: .TouchUpInside)

    return cell
}

func yourButtonTapMethod(sender:UIButton){
    let storyBoard: UIStoryboard = UIStoryboard(name: "Home", bundle: nil)
    let controllerInstance = storyBoard.instantiateViewController(withIdentifier:
        "ControllerStoryBoardIdentifier") as! YourControllerName
    self.sharedCalss.creatingNewTrip = true
    self.navigationController?.pushViewController(controllerInstance, animated: true)
}
}

Button tap action method should implement in DetalhaConsultaServidorViewController itself.