iOS : 'MyViewController' does not conform to protocol 'UITableViewDataSource'

Question

• I am new to IOS swift development. I used to work with previous Xcode 6 beta.

• I have downloaded the Xco

Answer 1

Try this simple solution:

import UIKit

class HomeViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
{
    //MARK: - Life Cycle
    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    //MARK: - Tableview Delegate & Datasource
    func tableView(tableView:UITableView, numberOfRowsInSection section:Int) -> Int
    {
        return 10
    }

    func numberOfSectionsInTableView(tableView: UITableView) -> Int
    {
        return 1
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
    {

        let cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: "MyTestCell")
        return cell
    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
    {

    }

}

Answer 2

In my case, i named my UITableView as tableView. That caused this same error:

'MyViewController' does not conform to protocol 'UITableViewDataSource'

including another error:

Candidate is not a function

And changed tableview name to something else, error is gone.

Answer 3

class ROTableView: UITableView, UITableViewDelegate {

    func tableView(tableView:UITableView!, numberOfRowsInSection section:Int) -> Int {
        return 10
    }

    func tableView(tableView:UITableView!, cellForRowAtIndexPath indexPath:NSIndexPath!) -> UITableViewCell! {
        let cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: "MyTestCell")

//        cell.text = "Row #\(indexPath.row)"
//        cell.detailTextLabel.text = "Subtitle #\(indexPath.row)"

        return cell
    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

    }
}

When you create the subclass for UITableView please refer the above code, you will not get any error.

Answer 4

You need to look at the whole error message. This specific message includes additional information about which methods are missing:

Type 'MyViewController' does not conform to protocol 'UITableViewDataSource'
Protocol requires function 'tableView(_:numberOfRowsInSection:)' with type '(UITableView, numberOfRowsInSection: Int) -> Int'
Candidate has non-matching type '(UITableView!, numberOfRowsInSection: Int) -> Int'

So... your numberOfRowsInSection takes an optional UITableView, and should take a required UITableView (this is a change they made between 6 and 6.1, all UITableView delegate and datasource methods now take required tableView and indexPath values)