How to implement multiple choice questions in table view OR how to implement radio buttons

How to implement multiple choice questions in table view OR how to implement radio buttons

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Here we are going to explain about implementing multiple choice selections in a table view using radio buttons. Now let’s start by taking a table view inside a ViewController.

    
    @IBOutlet weak var tableView: UITableView!
    let numberOfCells = 10
    var models = [Model]()
    

in viewDidLoad:-

    
        0..<numberOfCells).forEach { _ in
            self.models.append(Model())
    

Now create a model class like this example:-

    
        import Foundation
        import UIKit

        class Model {
            var isOptionA_Selected = false
            var isOptionB_Selected = false
            var isOptionC_Selected = false
            var isOptionD_Selected = false
        }
    

Now let’s write code in table view cell class, create a variable like given below:-

    
        var buttons: [UIButton]!
        var buttonTapHandler: (()->())?
        var model: Model?
    

Now add actions of all button to the same action class like given below attached all button action to the same IBAction:-

    
        @IBAction func buttonTappedHandle(_ sender: Any) {
            model?.isOptionA_Selected = (sender as? NSObject == buttonA)
            model?.isOptionB_Selected = (sender as? NSObject == buttonB)
            model?.isOptionC_Selected = (sender as? NSObject == buttonC)
            model?.isOptionD_Selected = (sender as? NSObject == buttonD)
            self.updateUI()    
        }
    

Now create a custom function for changing their button background colour like given below:-

    
        func updateUI() {
            buttonA.backgroundColor = (model?.isOptionA_Selected ?? false) ? .green : .gray
            buttonB.backgroundColor = (model?.isOptionB_Selected ?? false) ? .green : .gray
            buttonC.backgroundColor = (model?.isOptionC_Selected ?? false) ? .green : .gray
            buttonD.backgroundColor = (model?.isOptionD_Selected ?? false) ? .green : .gray
        }
    

Now again go into our main view controller:-

In table view delegate method

cellForRowIndex

, write something like this:-

    
        cell.configure(with: models[indexPath.row])
            cell.buttonTapHandler = {
                print(indexPath.row)

    

So that’s it, We have implemented multiple choice questions OR radio buttons in Table View.