         addSubview(emojiPopView)
     }
     
-    func updateControlLayout() {
+    private func updateControlLayout() {
         frame = defaultFrame
         
         // update page control

        }
        return Bundle()
    }
    static func pathOfResourceInBundle(filename:String, filetype: String) -> String? {
        if let filePath = thisBundle().path(forResource: filename, ofType: filetype) {
            return filePath
        }

    }
    
    //MARK: <UIScrollView>
    public func scrollViewDidScroll(_ scrollView: UIScrollView) {
        if let firstVisibleCell = collectionView.visibleCells.first {
            if let indexpath = collectionView.indexPath(for: firstVisibleCell){
