CODEWITHSUNDEEP
iosswiftuitableview
P.Mallik
P.Mallik

Reputation: 33

variable cell is never mutated

When I take var type variable then Xcode show warning

variable is never mutated

If I take let type variable then don't show any result!

import UIKit
class ViewController: UIViewController,UITableViewDataSource{
    let people = [
        ("Pankaj","Dhaka"),
        ("Asish","Madaripur"),
        ("Anup","Narail")
        ]
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return "People"
    }
    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return people.count
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = UITableViewCell()
        let (personName , personLocation) = people[indexPath.row]
        cell.textLabel?.text = personName
        cell.textLabel?.text = personLocation
        return cell
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }
}

Upvotes: 0

Views: 45

Answers (1)

vadian
vadian

Reputation: 285092

You cannot use a table view cell initialized with the default initializer UITableViewCell()

Reuse the cell, add an identifier (e.g. PeopleCell) in Interface Builder.

let cell = tableView.dequeueReusableCell(withIdentifier: "PeopleCell", for: indexPath)

And make sure that datasource and delegate of the table view are connected in Interface Builder, too.

Upvotes: 1

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