title: TableView.reloadData() is not working ? (SWIFT)
body: <p>I am developing a Quiz App which fetches questions from a JSON. I have already used reloadData for TableView many times &amp; worked as expected. But now I am fetching Questions using Alamofire &amp; saving it in a Array &amp; fetching the Questions from the Array.</p>
  
  <p>But it returns Array is Out of Index.</p>
  
  <p>How can i Display the First item of the Array in the first Cell ?</p>
  
  <p><strong>VC</strong> </p>
  
  <pre><code>class ExamController: UIViewController, UITableViewDataSource, UITableViewDelegate {
  
      @IBOutlet weak var Exam: UITableView!
  
      var CourseID : String!
      var EID : String!
      var EName : String!
      var ET : String!
  
      var QArray : [String] = []
  
      var progress = GradientCircularProgress()
  
  
      override func viewDidLoad() {
          super.viewDidLoad()
          progress.show(style:MyStyle())
          // JUST TRIED
          dispatch_async(dispatch_get_main_queue(), {
              self.getQuestions()
              // DO SOMETHING ON THE MAINTHREAD
              self.Exam.reloadData()
          })
  
          self.Exam.tableFooterView = UIView(frame: CGRectZero)
          self.Exam.tableFooterView?.hidden = true
      }
  
      func getQuestions(){
  
          if ET == "CHAPTER" {
              Alamofire.request(.GET, "http://www.wis.com/index.php/capp/chapter_questions_details/\(CourseID)/\(EID)/10")
                  .responseJSON { (_, _, data, _) in
                      println(data)
                      let json = JSON(data!)
                      let catCount = json.count
                      for index in 0...catCount-1 {
                          let q = json[index]["QUESTION"].string
                          self.QArray.append(q!)
                          println(self.QArray)
                      }
  
              }
  
              self.progress.dismiss()
              self.Exam.reloadData()
  
          } else if ET == "FA" {
              Alamofire.request(.GET, "http://www.wis.com/index.php/capp/fa_questions_by_course_id/\(CourseID)/\(EID)")
                  .responseJSON { (_, _, data, _) in
                      println(data)
                      let json = JSON(data!)
                      let catCount = json.count
                      for index in 0...catCount-1 {
                          let q = json[index]["QUESTION"].string
                          self.QArray.append(q!)
                          println(self.QArray)
                      }
  
              }
                          self.progress.dismiss()
                          self.Exam.reloadData()
      }
  }
  
      func numberOfSectionsInTableView(tableView: UITableView) -&gt; Int {
          return 1
      }
  
      func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -&gt; Int {
          return 5
      }
  
  
      func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -&gt; UITableViewCell {
          if indexPath.row == 0{
              let cell = self.Exam.dequeueReusableCellWithIdentifier("Question") as! QuestionCell
  
              cell.Questionlabel?.text = QArray[0]
              return cell
  
          }
          else
          {
              let cell = self.Exam.dequeueReusableCellWithIdentifier("Option") as! OptionCell
  
              cell.Optionlabel?.text = "Option"
              return cell
  
          }
      }
  </code></pre>