Load JSON into UItableView in Swift - ios

Question

I've been trying to return string urls from JSON and store it in array and then show the array in UITableView. but it shows empty UILabel.
class PhotosTableViewController: UITableViewController {
let imageLoadURL = "https://..."
var TAG_IMG_URL = []
verride func viewDidLoad() {
super.viewDidLoad()
getLatestPhotos()
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return TAG_IMG_URL.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! KivaLoanTableViewCell
cell.nameLabel.text = TAG_IMG_URL[indexPath.row] as? String
return cell
}
func getLatestPhotos() {
let request = NSURLRequest(URL: NSURL(string: imageLoadURL)!)
let urlSession = NSURLSession.sharedSession()
let task = urlSession.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
if error != nil {
println(error.localizedDescription)
}
self.TAG_IMG_URL = self.parseJsonData(data)
println("\(self.TAG_IMG_URL.count)")
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
})
})
task.resume()
}
func parseJsonData(data: NSData) -> NSArray {
var error:NSError?
let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &error) as? NSDictionary
if error != nil {
println(error?.localizedDescription)
}
if let j = jsonResult, let mediaObjects = j.valueForKeyPath("feed.entry.media$group.media$content") as? NSArray {
if let imageUrls: AnyObject = mediaObjects.valueForKey("url") {
TAG_IMG_URL = imageUrls as! NSArray
}
}
println("\(TAG_IMG_URL)")
self.alert.dismissWithClickedButtonIndex(0, animated: true)
return TAG_IMG_URL
}
}
During parseJsonData it returns the urls which it look like (below), but when i try to show it in the UITableView it always becomes empty UILabel so what am i doing wrong here ?:
(
(
"https://..."
),
(
"https://..."
)
)
Note : in numberOfRowsInSection it returns the right amount which its 2 urls.

Answer 1

Try this:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! KivaLoanTableViewCell
cell.nameLabel.text = TAG_IMG_URL[indexPath.row][0] as? String
return cell
}
The problem that you have 2-dimensional array, so you should get first object in object:
TAG_IMG_URL[indexPath.row].firstObject or TAG_IMG_URL[indexPath.row][0].