CODEWITHSUNDEEP
iosswiftxcodeswift4
dinggu
dinggu

Reputation: 111

how to enable button when all textfields filled in tableviewcell(SWIFT)

I want to enable the button in the viewcontroller when I fill in the textfield in the tableviewcell.

I don't know how to solve the problem.

Sorry. I am immature in English.

  1. button(viewController) isEnable = false
  2. fill textfields(inside tableviewcell)
  3. button(viewController) isEnable = true

enter image description here

1. ViewController

import UIKit

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UITextFieldDelegate {

    @IBOutlet var tableView: UITableView!
    @IBOutlet var viewLabel: UILabel!
    @IBOutlet var clickBtn: UIButton!

    var cell: CustomTableViewCell!

    override func viewDidLoad() {
        super.viewDidLoad()

        self.clickBtn.isEnabled = false
        cell.textFieldCell.addTarget(self, action: #selector(editingChanged), for: .editingChanged)
        cell.textFieldCell2.addTarget(self, action: #selector(editingChanged), for: .editingChanged)
    }

    @objc func editingChanged(sender: UITextField) {

        sender.text = sender.text?.trimmingCharacters(in: .whitespaces)

        guard
            let text1 = cell.textFieldCell.text, !text1.isEmpty,
            let text2 = cell.textFieldCell2.text, !text2.isEmpty
            else
        {
            self.clickBtn.isEnabled = false
            return
        }
        clickBtn.isEnabled = true
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        cell = tableView.dequeueReusableCell(withIdentifier: "myCell", for: indexPath) as! CustomTableViewCell
        return cell
    }
}

2. CustomTableView

import UIKit

class CustomTableViewCell: UITableViewCell, UITextFieldDelegate {

    @IBOutlet var myLabel: UILabel!
    @IBOutlet var textFieldCell: UITextField!
    @IBOutlet var textFieldCell2: UITextField!
}

Upvotes: 0

Views: 211

Answers (2)

Anas Sabir
Anas Sabir

Reputation: 124

One option is to use delegate.

protocol CustomTableViewCellDelegate  { 
    func editingChanged(_ String: yourString)    
}

In table view cell 

class TableViewCell: UITaleViewCell { 
    // declare the delegate 
    var delegate: CustomTableViewCellDelegate? 
    // and pass it like this from where you want to pass 
    delegate?.editingChanged(cookie) 
}

For using in tableViewController. first assign the delegate to self in cell for row at indexpath method. Then implement the delegate in it.

extension CustomTableViewController: CustomTableViewCellDelegate { 
    func editingChanged(String: yourString) { 
    // use it accordingly 
    } 
}

Upvotes: 0

vadian
vadian

Reputation: 285082

As the table view contains only one cell why do you use a table view at all?
And if you really need to use a table view why don't you use a static cell?

A simple solution is to move the target/action code from viewDidLoad into the didSet property observer of the cell

var cell: CustomTableViewCell! {
    didSet {
        cell.textFieldCell.addTarget(self, action: #selector(editingChanged), for: .editingChanged)
        cell.textFieldCell2.addTarget(self, action: #selector(editingChanged), for: .editingChanged)
    }
}

override func viewDidLoad() {
    super.viewDidLoad()

    self.clickBtn.isEnabled = false
}

Upvotes: 2

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