Swift-数组未填充值

Question

I am trying to build a list within a table view controller and I have the proper setup, but for some reason my simulator crashes at the line where I set my array. It is not an error, but a Thread issue. I'm still learning the XCode warning system so I'm not sure what that means, but I noticed that in the Thread notifications that cityArray = ([String]) 0 values . Can anyone help?

import UIKit

class ListTableViewController: UITableViewController {

    var cityArray: [String] = ["Portland","San Francisco","Cupertino"]


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

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


    // MARK: - Table view data source
    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {

        return 1

    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return cityArray.count

    }


    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cellIdentifier", forIndexPath: indexPath) as UITableViewCell

        cell.textLabel?.text = self.cityArray[indexPath.row]

        return cell
    }


}

UPDATE:

Images of the Thread message:

Answer 1

尝试这个

let cityArray: [NSArray] = ["Portland","San Francisco","Cupertino"] as NSArray

Answer 2

Can you also provide the error you're receiving? Is it an issue with the array being mutated while being enumerated or something?

Also,

var cityArray: [String] = ["Portland","San Francisco","Cupertino"]

can change to

var cityArray = ["Portland", "San Francisco", "Cupertino"]

Since all your objects are of the same type, the Swift's type inference takes care of this for you.