title: Swift 2, UiCollectionview after scrolling - changed cells data
body: <p>For cells I just put info from array:</p>
  
  <pre><code>func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -&gt; UICollectionViewCell {
  
              let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as! ImagesCollectionViewCell
  
              if cell.dateLabel.text == "" {
                  cell.dateLabel.text = imagesDatas[indexPath.row].datesStr
                  cell.image.image = imagesDatas[indexPath.row].images
              }
              return cell
          }
  </code></pre>
  
  <p>To array, I generate data in DidAppear. Only one time. 
  But When I scrolling collectionView - cells change data, for example:</p>
  
  <p>1 cell - PictureA</p>
  
  <p>2 cell - PictureB</p>
  
  <p>then scrolling, and in collectionview will see:</p>
  
  <p>1 cell - PictureB</p>
  
  <p>2 cell - PictureA </p>
  
  <p>then scrolling, and in collectionview will see again:</p>
  
  <p>1 cell - PictureA</p>
  
  <p>2 cell - PictureB</p>
  
  <p>Can't understand what happen here... </p>