Question

我有一个应用程序，它在故事板上有一个webview，它在ASP中加载一个注册表单，所以当键盘或选择器出现时，导航栏会隐藏，但永远不会回来，所以我无法回到最后一页。

这是我的代码：

import UIKit

class BannerViewController: UIViewController {

    @IBOutlet var webView11: UIWebView!

    override var preferredStatusBarStyle: UIStatusBarStyle  {
        return .default
    }

    override var prefersStatusBarHidden: Bool  {
        return false
    }

    override func viewWillAppear(_ animated: Bool) {
        self.navigationItem.setHidesBackButton(false, animated: true)
        self.setNeedsStatusBarAppearanceUpdate()


        self.navigationController?.navigationBar.barTintColor = UIColor(red: 0, green: 0.38, blue: 0.667, alpha: 1)
        self.navigationController?.navigationBar.tintColor = UIColor(red: 1, green: 1, blue: 1, alpha: 1)
        var titleTextAttributes = [String : AnyObject]();
        titleTextAttributes[NSFontAttributeName] = UIFont.systemFont(ofSize: 17, weight: UIFontWeightSemibold)
        titleTextAttributes[NSForegroundColorAttributeName] = UIColor(red: 1, green: 1, blue: 1, alpha: 1)
        self.navigationController?.navigationBar.titleTextAttributes = titleTextAttributes
    }

    override func viewDidLoad() {
        super.viewDidLoad();
        self.navigationController?.navigationBar.barStyle = .default
        self.setNeedsStatusBarAppearanceUpdate()
    self.navigationController?.setNavigationBarHidden(false, animated: true)

        self.webView11.delegate = self;
        if let unwrappedwebView11 = URL(string: "http://www.stackoverflow") {
            self.webView11.loadRequest(URLRequest(url: unwrappedwebView11))
        }
    }



}


extension BannerViewController: UIWebViewDelegate {



}

Answer 1

所以，看起来我需要刷新视图或其他东西，因为我在webView中添加了一个后退按钮，当我点击并返回上一个视图，然后我再次进入webView导航栏没有再动了

当键盘出现ios时如何防止导航栏隐藏？

1 个答案: