How to iterate through Dictionary of Dictionary Values in UITableViewCell? - ios

Question

This is my first post and I hope its a great question because iv been stuck on this for days. (Literally searched every related question and found nothing that I could add up for a solution.)
Basically I'm building a pure Swift application. My problem is that I cant figure out how to place each dictionary values into each UITableCell that is created.
Also the JSON response from the GET creates a NSCFDictionary type.
UITableViewCell Properties
UILabel - Holds the Offer "name"
UI Label #2 - Holds Offer "description"
UIImage - Holds the Offer "thumb_url"
So basically I need to store each offer object's (name, description, thumb_url) in every UITableViewCell that the ViewController creates.
GET Request
import UIKit
class freeIAPCell: UITableViewCell {
#IBOutlet weak var aName: UILabel!
#IBOutlet weak var aDescription: UILabel!
#IBOutlet weak var aImage: UIImageView!
}
class FreeIAPViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
// Everbadge Request
var apiURL = "apiurlhere"
var parsedArray: [[String:String]] = []
func queryEB() {
// Query DB Here
// Store the API url in a NSURL Object
let nsURL = NSURL(string: apiURL)
let request = NSMutableURLRequest(URL: nsURL!)
request.HTTPMethod = "GET"
// Execute HTTP Request
let task = NSURLSession.sharedSession().dataTaskWithURL(nsURL!) {
data, response, error in
if error != nil {
print("Error = \(error)")
return
}
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
do {
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: .AllowFragments) as! NSDictionary
print(json.isKindOfClass(NSDictionary)) // true
let data = json.objectForKey("data") as! NSDictionary
//print(data)
let m = data.objectForKey("offers") as! NSArray
print(m)
print(m.valueForKeyPath("name"))
self.parsedArray = m as! [[String : String]]
} catch {
print("THERE WAS AN ERROR PARSING JSON FOR EVERBADGE")
}
}
task.resume()
}
override func viewDidLoad() {
super.viewDidLoad()
queryEB()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true)
}
// MARK: UITableView method implementation
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 4
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 100
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("freeAppCell", forIndexPath: indexPath) as! freeIAPCell
let obj = parsedArray[indexPath.row] // fatal error: Index out of range
cell.aName.text = obj["name"]
return cell
}
}
API Request Data Structure (print(m))
(
{
"name" = "Mate";
id = 23941;
description = "10-20 word description goes here"
"url" = "google.com
"ver" = "0.12"
price = "0.17"
"public_name" = "Good Ole Mate"
"thumb_url" = "http://google.com/mate.jpg
};
{
"name" = "Mate";
id = 23941;
description = "10-20 word description goes here"
"url" = "google.com
"ver" = "0.12"
price = "0.17"
"public_name" = "Good Ole Mate"
"thumb_url" = "http://google.com/mate.jpg
};
{
"name" = "Mate";
id = 23941;
description = "10-20 word description goes here"
"url" = "google.com
"ver" = "0.12"
price = "0.17"
"public_name" = "Good Ole Mate"
"thumb_url" = "http://google.com/mate.jpg
};
{
"name" = "Mate";
id = 23941;
description = "10-20 word description goes here"
"url" = "google.com
"ver" = "0.12"
price = "0.17"
"public_name" = "Good Ole Mate"
"thumb_url" = "http://google.com/mate.jpg
};
{
"name" = "Mate";
id = 23941;
description = "10-20 word description goes here"
"url" = "google.com
"ver" = "0.12"
price = "0.17"
"public_name" = "Good Ole Mate"
"thumb_url" = "http://google.com/mate.jpg
};
);

Answer 1

First create public arrays for your 3 items...
var nameArray = [String]()
var descriptionArray = [String]()
var thumbnailArray = [String]()
Then loop through your json parse like this....
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding) as! NSDictionary
if responseString != nil
{
let items: AnyObject! = responseString["items"] as AnyObject!
if items != nil
{
// Loop through all search results and keep just the necessary data.
for var i=0; i<items.count; ++i
{
if let names = items[i]["name"] as? NSDictionary
{
let name = names as! String
self.nameArray.append(name)
}
if let descriptions = items[i]["description"] as? NSDictionary
{
let description = descriptions as! String
self.descriptionArray.append(description)
}
if let thumbnails = items[i]["thumb_url"] as? NSDictionary
{
let thumbnail = thumbnails as! String
self.thumbnailArray.append(thumbnail)
}
}
}
self.resultsTableView.reloadData()
Create an OfferTableViewCell Class with a nameLabel:UILabel, descriptionLabel:UILabel, and thumbnailImage:UIImage. Finally in your cellForRowAtIndexPath.....
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCellWithIdentifier("offer", forIndexPath: indexPath) as! OfferTableViewCell
cell.nameLabel.text = self.nameArray[indexPath.row]
cell.descriptionLabel.text = self.descriptionArray[indexPath.row]
let url = NSURL(string: self.thumbnailArray[indexPath.row])
let data = NSData(contentsOfURL: url!)
cell.thumbnailImage.image = UIImage(data: data!)
return cell
}