not showing data in table view swift - ios

Question

i have one table view with two labels. I need to display the data which are coming from json. But now its not showing any data in table view:
import UIKit
class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate
{
let yourJsonFormat: String = "JSONFile" // set text JSONFile : json data from file
// set text JSONUrl : json data from web url
var arrDict :NSMutableArray=[]
#IBOutlet weak var tvJSON: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
if yourJsonFormat == "JSONFile" {
jsonParsingFromFile()
} else {
jsonParsingFromURL()
}
}
func jsonParsingFromURL () {
let url = NSURL(string: "url")
let request = NSURLRequest(URL: url!)
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
}
}
func jsonParsingFromFile()
{
let path: NSString = NSBundle.mainBundle().pathForResource("days", ofType: "json")!
let data : NSData = try! NSData(contentsOfFile: path as String, options: NSDataReadingOptions.DataReadingMapped)
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return arrDict.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell : TableViewCell! = tableView.dequeueReusableCellWithIdentifier("Cell") as! TableViewCell
let strTitle : NSString=arrDict[indexPath.row] .valueForKey("name") as! NSString
let strDescription : NSString=arrDict[indexPath.row] .valueForKey("rating") as! NSString
cell.lblTitle.text=strTitle as String
cell.lbDetails.text=strDescription as String
return cell as TableViewCell
}
}
Any thing i missed,please help me out.
I am not able to see any data in my table view...

Answer 1

your code is partially correct, I followed your question
Step-1
Right click on the info.plist file, select open as, Source code. Add the lines of code that allow the http connection to this server.
do like
Step-2
For Server request
sendAsynchronousRequest is deprecated in this place use
func jsonParsingFromURL () {
let url = NSURL(string: "url")
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: url!)
let dataTask = session.dataTaskWithRequest(request) { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
print("done, error: \(error)")
let dict: NSDictionary!=(try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers)) as! NSDictionary
arrDict.addObject((dict.valueForKey("xxxx")
tvJSON .reloadData()
}
dataTask.resume()
}
For local Request
func jsonParsingFromFile()
{
let path: NSString = NSBundle.mainBundle().pathForResource("days", ofType: "json")!
let data : NSData = try! NSData(contentsOfFile: path as String, options: NSDataReadingOptions.DataReadingMapped)
let dict: NSDictionary!=(try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers)) as! NSDictionary
arrDict.addObject((dict.valueForKey("xxxx")
tvJSON .reloadData()
}
Update and Edit
class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
#IBOutlet var showtable: UITableView!
var arrDict :NSMutableArray=[]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.jsonParsingFromURL()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func jsonParsingFromURL () {
let url = NSURL(string: "http://kirisoft.limitscale.com/GetVendor.php?category_id=1")
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: url!)
let dataTask = session.dataTaskWithRequest(request) { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
print("done, error: \(error)")
if error == nil
{
self.arrDict=(try! NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)) as! NSMutableArray
print(self.arrDict)
if (self.arrDict.count>0)
{
self.showtable.reloadData()
}
// arrDict.addObject((dict.valueForKey("xxxx")
}
}
dataTask.resume()
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return arrDict.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let CellIdentifier: String = "cell"
var cell = tableView.dequeueReusableCellWithIdentifier(CellIdentifier) as UITableViewCell!
if cell == nil {
cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: CellIdentifier)
}
cell?.textLabel!.text=arrDict[indexPath.row] .valueForKey("name") as? String
cell?.detailTextLabel!.text=arrDict[indexPath.row] .valueForKey("rating") as? String
return cell!
}
}
you can get the output like
For sample Project