Question

我有一个非常简单的Web视图项目，该项目仅加载一个网站。但是，存在一个错误，如果我向下滚动，网站内容会显示在状态栏中。

我读到这是因为ViewController的背景色设置为透明，如何将其更改为另一种颜色？

我这样尝试过：

let color = UIColor.black;
self.view.backgroundColor = color

但是什么都没有改变

整个代码：

ViewController.swift

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {

    @IBOutlet var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // 1  The webView loads the url using an URLRequest object.
        let url = URL(string: "https://www.blizz-z.de/")!

        webView.load(URLRequest(url: url))

        // 2  A refresh item is added to the toolbar which will refresh the current webpage.
        let refresh = UIBarButtonItem(
            barButtonSystemItem: .refresh,
            target: webView,
            action: #selector(webView.reload)
        )

        toolbarItems = [refresh]
        navigationController?.isToolbarHidden = true
        navigationController?.isNavigationBarHidden = true

    }

    override func loadView() {
        webView = WKWebView()
        webView.navigationDelegate = self
        view = webView
        let color = UIColor.black;
        self.view.backgroundColor = color
    }

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        title = webView.title
    }



}

我可以使用以下代码禁用状态栏以修复该错误，但我尝试保留它：

override var prefersStatusBarHidden: Bool {
    return true
}

Answer 1

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let height = UIScreen.main.bounds.height
        let width = UIScreen.main.bounds.width

        let webView = WKWebView(frame: CGRect(x: 0, y: 0, width: width, height: height))
        webView.load(URLRequest(url: (URL(string: "https://www.blizz-z.de/")!)))
        view.addSubview(webView)
         UIApplication.shared.statusBarView?.backgroundColor = #colorLiteral(red: 0.9529411765, green: 0.9529411765, blue: 0.9529411765, alpha: 1)
    }


}

extension UIApplication {
    var statusBarView: UIView? {
        if responds(to: Selector("statusBar")) {
            return value(forKey: "statusBar") as? UIView
        }
        return nil
    }
}

Answer 2

使safeArea.top约束相对于superview.top约束，而不是webView约束。这样，您就可以在状态栏下创建="This is a date formatted manually: "&TEXT('Master sheet'!B3,"hhmm")& "hrs of the following date: "&TEXT('Master sheet'!B3, "dd/mm/yyyy")&" AND THIS IS IT"。

更改状态栏的背景颜色

2 个答案: