全屏IOS网络视图

这是一个非常简单的问题，但我对IOS开发和Swift完全陌生

我正在尝试添加一个webview，并使其填充整个屏幕

这是我的密码

 override func viewDidLoad() {
        super.viewDidLoad()

        let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: 300, height: 300))

        self.view.addSubview(myWebView)
        let url = URL (string: "https://google.com");
        let request = URLRequest(url: url! as URL);
        myWebView.loadRequest(request);
        }

当我运行应用程序时，只会出现一个白色屏幕。我可以将html作为字符串加载（loadHTMLString）

所以有两个问题

• 如何使web视图达到全屏大小
• 为什么我不能加载url？我只能看到白色屏幕

---

您已使用固定的高度和宽度（即300）初始化myWebView。请尝试

let frame = self.view.frame
let width = frame.width
let height = frame.height
let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: width, height: height))

使用故事板，您可以在viewController中拖放webView，并对视图进行约束（顶部：0、右侧：0、底部：0、左侧：0），以便web视图显示为全屏。现在将webView的出口扩展到viewController和viewDidLoad中

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view
    let url = URL (string: "https://www.simplifiedios.net")
    let request = URLRequest(url: URL: url!)
    webView.loadRequest(request)
}

---

试试这个。

class ViewController: UIViewController , UIWebViewDelegate {

override func viewDidLoad() {
        super.viewDidLoad()


        let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 20, width: self.view.frame.width, height: self.view.frame.height))
        myWebView.delegate = self
        self.view.addSubview(myWebView)
        let url = URL (string: "https://google.com");
        let request = URLRequest(url: url! as URL);
        myWebView.loadRequest(request);


    }

    func webViewDidStartLoad(_ webView: UIWebView) {
        print("web view start loading")
    }

    func webViewDidFinishLoad(_ webView: UIWebView) {
        print("web view load completely")
    }

    func webView(_ webView: UIWebView, didFailLoadWithError error: Error) {
        print("web view loading fail : ",error.localizedDescription)
    }
}

---

我运行了你的代码，里面没有错

除了框架

您所需的更改-

  let myWebView:UIWebView = UIWebView(frame: self.view.frame)

如果无法从url加载，请检查internet连接

webView:didFailLoadWithError

---

实现此功能可检查将来出现的任何错误，因为您尚未将

myWebView

添加到

view

override func viewDidLoad() {
    super.viewDidLoad()
    let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 20, width: self.view.frame.width, height: self.view.frame.height))

    self.view.addSubview(myWebView)
    let request = URLRequest(url: URL(string: "https://google.com")!)
    myWebView.loadRequest(request)
}

完成webview加载后，将webview大小更改为内容

---

您可以使用self.view.frame.size.width表示宽度，self.view.frame.size.height表示高度您尚未将webView添加到视图。答案是否与？，使用myWebView.frame=self.view.bounds和als检查传输安全是否已添加到您的应用程序中。plist@Birger检查更新它对我来说工作正常我检查过了。@Birger-添加代理并检查哪个代理将被调用。。由于某种原因，手机失去了wifi。。谢谢你的快速回复help@DixitAkabari-失败授权人在哪里愚蠢的手机失去了wifi。。它现在加载url。。真是个新手犯的错误

Hear is your answers of two questions

**1.How do I get the web view to get fullscreen size?**

**Ans**: let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: self.view.frame.size.height))

**2 Why can't I load a url - I only get the white screen**
**Ans**:
        let myWebView:UIWebView = UIWebView(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: self.view.frame.size.height))
        let url = URL (string: "https://google.com");
        let request = URLRequest(url: url! as URL);
        myWebView.loadRequest(request)
        self.view.addSubview(myWebView)

Load request before adding to self.view like above code

 //MARK: - WebView Delegate Method
func webViewDidFinishLoad(_ webView: UIWebView) {
    var frame = self.webView.frame
    frame.size.height = 1
    self.webView.frame = frame
    let fittingSize = self.webView.sizeThatFits(CGSize.zero)
    frame.size = fittingSize
    self.webView.needsUpdateConstraints()
    self.webView.frame.size.height = fittingSize.height
    self.webView.scrollView.isScrollEnabled = false
}