     func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool){
         //如果翻页完成，则completed=true，否则为false
         isAnimatedFinished = completed//请求数据时根据此字段更新当前页
+        
+        if !completed {
+            currentReaderVC = previousViewControllers.first as! PageViewController
+        } else {
+            currentReaderVC = pageViewController.viewControllers?.first as! PageViewController
+        }
+        /*
         currentReaderVC = pageViewController.viewControllers?.first as! PageViewController
         if  completed == true {
-
+            
         }else{
             // 翻页未完成，回到原来的页面,原来的页面是肯定存在的
             // 分为两种情况，1.前（下一页） 2.后（上一页）

        let pageVC = getLastPage(chapter: currentChapter, page: currentPage)

        return pageVC
    }
    
    func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?{
        if viewController.isKind(of: PageViewController.self) {
            let backgroundVC = QSReaderBackgroundViewController()
            backgroundVC.setBackground(viewController: self.currentReaderVC!)

                }
            }
        }
         */
    }
    
    //MARK: - ToolBarDelegate
