         tapGesture.addTarget(self, action: "tapAction:")
         self.webView.addGestureRecognizer(tapGesture)
         tapGesture.delegate = self
+    }
+    
+    override func viewWillAppear(animated: Bool) {
+        super.viewWillAppear(animated)
+        self.navigationController?.navigationBarHidden = true
+        navView.hidden = true
+        closeTheDrawerGesture()
     }
     
     // MARK: - SetupUI

        
    }

    // MARK: - UIScrollDelegate
    
    func scrollViewDidScroll(scrollView: UIScrollView) {
        let offSetY = scrollView.contentOffset.y
        //有图模式

    var isNight : Bool = false
    var tapGesture : UITapGestureRecognizer!
    
    // MARK: - life sycle
    
    override func viewDidLoad() {
        super.viewDidLoad()
