title: trying to create Favorite Button for add items in favorite list
body: <p>I'm trying to create favorite button on CollectionViewCell for saving items in favorite list. When i tapped on favorite icon button it successfully add selected cell item in array of favorite list class, and also shows in favorite list. When i tapped on favorite button it change its image according to values are already saved or not. 
  When i'm trying to save favorite list array in NSUserDefaults it save and also show values when i retrieve it. But when i close my app from simulator and run again it not shows values in favorite list array that i saved in NSUserDefaults and also want to set button image state according to item already add or not.</p>
  
  <p><a href="https://drive.google.com/open?id=0B29ka7gbDAYxbkRqa29aZWh0dWM" rel="nofollow">Output</a> When i tapped on favorite. And run again after closing my App.
  Can anyone tell me how i can fix that. Or can anyone please fix it in my <a href="https://drive.google.com/open?id=0B29ka7gbDAYxVHlHb3dZcGlTV0U" rel="nofollow">project.</a>
  Thanks</p>
  
  <pre><code>import UIKit
  
  var url : [NSString] = [
      "https://www.youtube.com/watch?v=9h30Bx4Klxg",
      "https://www.youtube.com/watch?v=ij_0p_6qTss",
      "https://www.youtube.com/watch?v=AJtDXIazrMo",
      "https://www.youtube.com/watch?v=H202k7KfZL0",
      "https://www.youtube.com/watch?v=CGyEd0aKWZE",
      "https://www.youtube.com/watch?v=AtKZKl7Bgu0",
      "https://www.youtube.com/watch?v=4SYlLi5djz0"]
  
  var image : [NSString] = ["1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg", "7.jpg"]
  
  
  class LiveCollectionView: UIViewController, UICollectionViewDataSource,UIWebViewDelegate {
  
      @IBOutlet weak var collectionView: UICollectionView!
  
      override func viewDidLoad() {
          super.viewDidLoad()
      }
  
      override func viewDidAppear(animated: Bool) {
          let value = UIInterfaceOrientation.Portrait.rawValue
          UIDevice.currentDevice().setValue(value, forKey: "orientation")
      }
  
      func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -&gt; Int {
          return url.count
      }
  
      func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -&gt; UICollectionViewCell
      {
          let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! LiveCollectionViewCell
  
          cell.imageView.image = UIImage(named: image[indexPath.row] as String)
          cell.playBt.addTarget(self, action: Selector("webView:"), forControlEvents: UIControlEvents.TouchUpInside)
  
          cell.playBt.tag = indexPath.row
          cell.heartBt.tag = indexPath.row
  
          return cell
      }
  
      func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath){
      }
  }
  </code></pre>
  
  <hr>
  
  <pre><code>import UIKit
  
  class LiveCollectionViewCell: UICollectionViewCell{
  
  var showPlayButton = true
  
  var number = Int()
  var secondNumber = Int()
  
  @IBOutlet weak var playBt: UIButton!
  
  @IBOutlet weak var imageView: UIImageView!
  
  @IBOutlet weak var heartBt: UIButton!
  
  @IBAction func heartBt(sender: UIButton) {
  
  
      var btn : NSInteger
      btn = sender.tag as NSInteger
  
      let uValues = url[btn]
      let iValues = image[btn]
  
      if showPlayButton == true{
          u.append(url[btn])
          i.append(image[btn])
  
          self.heartBt.setImage(UIImage(named: "rheart"), forState: UIControlState.Normal)
          showPlayButton = false
          print("rHeart xxxxxxxxxxxxxxx")
  
      }else{
  
          for check in u {
  
              number++
              print(number)
  
              if uValues == check{
                  print(u)
                  u.removeAtIndex(number-1)
                  number = 0
                  print("RemoVe at indext path")
                  print(u)
                  break
  
              }
  
          }
  
          for check2 in i{
  
              secondNumber++
              print(secondNumber)
  
              if iValues == check2{
                  print(i)
                  i.removeAtIndex(secondNumber-1)
                  secondNumber = 0
                  print("RemoVe at indext path")
                  print(i)
                  self.heartBt.setImage(UIImage(named: "wHeart"), forState: UIControlState.Normal)
                  showPlayButton = true
                  print("wHeart ........")
                  break
  
              }
  
          }
  
      }
  
  }
  }
  </code></pre>
  
  <hr>
  
  <pre><code>import UIKit
  var u : [NSString] = []
  var i : [NSString] = []
  class FavoriteTvViewController: UIViewController , UICollectionViewDelegate{
      var uV : NSArray = []
      var iV : NSArray = []
  
      @IBOutlet weak var collectionView: UICollectionView!
  
      let reuseIdentifier = "cell"
  
      override func viewDidLoad(){
      }
  
      override func viewWillAppear(animated: Bool) {
          collectionView.reloadData()
          NSUserDefaults.standardUserDefaults().setObject(u, forKey: "u")
          NSUserDefaults.standardUserDefaults().setObject(i, forKey: "i")
          NSUserDefaults.standardUserDefaults().synchronize()
  
          uV = NSUserDefaults.standardUserDefaults().arrayForKey("u") as! NSArray
          iV = NSUserDefaults.standardUserDefaults().arrayForKey("i") as! NSArray
          print("uV values.. \(uV)")
          print("iV values.. \(iV)")
      }
  
      func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -&gt; Int
      {
          return uV.count
      }
  
      func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -&gt; FavoriteTvCollectionViewCell
      {
          let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! FavoriteTvCollectionViewCell
  
          cell.imageView.image = UIImage(named: iV[indexPath.row] as! String)
          return cell
      }
  }
  </code></pre>
  
  <hr>
  
  <pre><code>import UIKit
  class FavoriteTvCollectionViewCell: UICollectionViewCell {
      @IBOutlet weak var imageView: UIImageView!
  }
  </code></pre>