ImagesTabViewController'不符合协议'UITableViewDataSource'

Question

I know this question has been asked a million times, but I can't find a resolution to this specific issue. I'm using Xcode 6.3 beta 4 with Swift 1.2 and since the last update I haven't been able to get a regular UITableView with the supporting datasource and delegate protocols working.

I am getting the above error and "Definition conflicts with previous value" for the numberOfRowsInSection function. At this point I don't know if it's a Swift change or I am missing something. The tableview is connected properly..

Thanks for any help.

class ImagesTabViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

var collectionInfo: NSArray = DataManager.getUserCollections()

var items: NSMutableArray = []
var namesArray: NSMutableArray = []

override func viewDidLoad() {
    super.viewDidLoad()

    APIManager().getData() { completed in
        dispatch_async(dispatch_get_main_queue(), { () -> Void in
            if completed {

                self.collectionInfo = DataManager.getUserCollections()
                var collectionNames: AnyObject = self.collectionInfo[3]
                println(collectionNames)


                self.items = NSMutableArray(array: self.collectionInfo)
            } else {
                //do something else
            }
        })
    // Do any additional setup after loading the view.
}

 func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

    func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        // #warning Potentially incomplete method implementation.
        // Return the number of sections.
        return 1
    }


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

        var collectionsAndArrays = PSCollection()
        let cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: "cell")

        // Configure the cell...

        collectionsAndArrays = self.items[indexPath.row] as! PSCollection
        cell.textLabel!.text = collectionsAndArrays.name
        cell.detailTextLabel!.text = collectionsAndArrays.created_at

        return cell
    }


    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete method implementation.
        // Return the number of rows in the section.
        var numberOfCollections: Int = self.items.count

        return numberOfCollections

    }


}}

Answer 1

There is a bracket missing and didReceiveMemoryWarning must be overridden. Here is the revised code:

class ImagesTabViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

    var collectionInfo: NSArray = DataManager.getUserCollections()

    var items: NSMutableArray = []
    var namesArray: NSMutableArray = []

    override func viewDidLoad() {
        super.viewDidLoad()

        APIManager().getData() { completed in
            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                if completed {
                    self.collectionInfo = DataManager.getUserCollections()
                    var collectionNames: AnyObject = self.collectionInfo[3]
                    println(collectionNames)
                    self.items = NSMutableArray(array: self.collectionInfo)
                } else {
                    //do something else
                }
            })
            // Do any additional setup after loading the view.
        }
    } // <- Was missing!

    // Override!
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

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


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

        // Configure the cell...

        collectionsAndArrays = self.items[indexPath.row] as! PSCollection
        cell.textLabel!.text = collectionsAndArrays.name
        cell.detailTextLabel!.text = collectionsAndArrays.created_at

        return cell
    }


    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        var numberOfCollections: Int = self.items.count
        return numberOfCollections
    }
}