问题描述
这是我的代码不建议删除 IBAction 我是一个初学者制作浏览器。我也是 这个程序很新:
import Cocoa
import WebKit
class ViewController: NSViewController,WKNavigationDelegate {
@IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
webView.navigationDelegate = self
// Do any additional setup after loading the view.
}
override var representedObject: Any? {
didSet {
}
}
@IBAction func didEnterKeyTapped( sender: NSTextField){
let urlString = sender.stringValue
guard let url = URL(string: urlString) else {return}
let urlRequest = URLRequest(url: url)
webView.load(urlRequest)
@IBAction func didnavigationButtonTapped ( sender: NSSegmentedControl){
if sender.selectedSegment == 0 {
webView.goBack()
}else {
webView.Forward()
}
}
func webView(_ webView: WKWebView,didCommit navigation: WKNavigation!) {
let currentUrl = webView.url?.absoluteString ?? ""
guard let windowController = view.window?.windowController as? WindowController else {return}
let textField = windowController.urlTextField
textField?.stringValue = currentUrl
}
}
}
解决方法
您在 ViewController
类之外声明了 @IBActions。 IBAction 必须是类的成员。移动类中的 IBActions 以修复编译器错误。
您代码中的另一个问题是您在 didNavigationButtonTapped
IBAction 中声明了 didEnterKeyTapped
IBAction。这两个 IBAction 应该是独立的函数,例如:
@IBAction func didEnterKeyTapped( sender: NSTextField){
let urlString = sender.stringValue
guard let url = URL(string: urlString) else {return}
let urlRequest = URLRequest(url: url)
webView.load(urlRequest)
}
@IBAction func didnavigationButtonTapped ( sender: NSSegmentedControl) {
if sender.selectedSegment == 0 {
webView.goBack()
}else {
webView.Forward()
}
}