         
         willSet {
             
-            if newValue {
-                
-                moreButtonWidthConstraint.constant = 4
-            } else {
-                
-                moreButtonWidthConstraint.constant = kMoreButtonWidth
-            }
             moreButton.hidden = newValue
         }
     }

    private var line        : UIView!   // 完美分割线
    
    private var constrainsViewDic = [String:UIView]() // 代码增加约束需要使用
    private var moreButtonWidthConstraint : NSLayoutConstraint! // 更多按钮的宽约束
    private var moreButtonRightMarginConstraint : NSLayoutConstraint! // 更多按钮右边距约束
    private var titleButtonLeftMarginConstraint : NSLayoutConstraint! // 标题按钮左边距约束
    private var lineLeftMarginConstraint : NSLayoutConstraint! // 分割线左边距约束

        self.addConstraints(tempConstraints)
        
        // 保存moreButton width constrain
        moreButtonRightMarginConstraint = tempConstraints[1]
        
        // event
