加载WKWebViewController后，您将无法再次进行转换。
加载WKWebViewController后，您将无法再次进行转换。
我有以下的视图控制器
import Foundation
import UIKit
import WebKit
class TextViewController : UIViewController, WKNavigationDelegate {
var data: Book!
@IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
self.navigationController?.navigationBar.isHidden = true
webView.navigationDelegate = self
if var body = self.data.body {
body += ""
webView.loadHTMLString(body, baseURL: nil)
}
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated);
NetworkActivityIndicatorManager.networkOperationStarted()
LoadingIndicatorView.show("加载中")
self.tabBarController?.tabBar.isHidden = true;
self.navigationController?.navigationBar.isHidden = true
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated);
self.tabBarController?.tabBar.isHidden = false;
}
@IBAction func goback(_ sender: UIButton) {
self.navigationController?.popViewController(animated: true)
}
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
let css = "body { font-size: 18px; line-height: 28px; } h1 { font-size: 34px; text-align: left; margin-bottom: 12px; line-height: 1.3; } h2 { font-size: 26px; font-weight: 700; padding: 0; margin-bottom: 10px; text-align: left; line-height: 34.5px; letter-spacing: -0.45px; } p, i, a { margin-top: 21px; font-size: 20px; letter-spacing: -0.03px; line-height: 1.57; }";
let js = "var style = document.createElement('style'); style.innerHTML = '\(css)'; document.head.appendChild(style);"
webView.evaluateJavaScript(js, completionHandler: nil)
NetworkActivityIndicatorManager.networkOperationFinished()
LoadingIndicatorView.hide()
}
}
当我切换到这个视图控制器时，它会加载webview。然而，当我通过触发goback操作退出视图控制器时，我无法返回到webview控制器。我错过了什么吗？这是我如何转场到控制器的方式 -
self.performSegue(withIdentifier: "toText", sender: nil)