         
         conversationCollectionView.bounces = true
 
+
         let tap = UITapGestureRecognizer(target: self, action: "tapToCollapseMessageToolBar:")
         conversationCollectionView.addGestureRecognizer(tap)
 

    let samplingInterval = 6
    
    @IBOutlet weak var conversationCollectionView: UICollectionView!

    @IBOutlet weak var messageToolbar: MessageToolbar!
    @IBOutlet weak var messageToolbarBottomConstraint: NSLayoutConstraint!

            dispatch_async(dispatch_get_main_queue()) { [weak self] in

                UIView.animateWithDuration(0.2, delay: 0.1, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
                    if let strongSelf = self {
                        strongSelf.conversationCollectionView.contentInset.top = 64 + strongSelf.conversationCollectionViewContentInsetYOffset

                        friendRequestViewTop.constant -= FriendRequestView.height
                        strongSelf.view.layoutIfNeeded()
                    }

                }, completion: { _ in
                    friendRequestView.removeFromSuperview()
