WKWebView 不在设备上运行

Question

我的主要问题是 WKWebView....当我运行我的应用程序应该导航到幕后的网站并通过运行从 .在主包中找到 js 文件。

 required init(coder aDecoder: NSCoder) {

 //  Load username and password from NSUserDefults

        self.staffID = defaults.objectForKey("UserName") as String
        self.pass = defaults.objectForKey("PassWord") as String

    // locate file from main bundle
        let populateLoginURL = NSBundle.mainBundle().pathForResource("login", ofType: "js")       
// edit username and password
      var PassEdited = pass + "'"
        println(pass)
        var PassJs = "document.getElementsByName('password')[0].value = '" + PassEdited
        var usernameEdited = "'" + staffID + "'"
        println(staffID)
        var userNameJS = "document.getElementsByName('username')[0].value = " + usernameEdited
    // submit fuction will validate username and password on webpage
        let submit = "submitButton()"
    //combine the java code in one line
       let javaCode = userNameJS + "; " + PassJs + "; " + submit
    // write java code to file in main bundle which is empty
      javaCode.writeToFile(populateLoginURL!, atomically: true, encoding: NSUTF8StringEncoding, error: nil)
    //configure webView
       self.webView = WKWebView(frame: CGRectZero)
        let configuration = WKWebViewConfiguration()
    // load javacode to inject from file
        let populateLoginJS = String(contentsOfFile:populateLoginURL!,   encoding:NSUTF8StringEncoding, error: nil)
        let populateLoginScript = WKUserScript(source: populateLoginJS!,    injectionTime: .AtDocumentEnd, forMainFrameOnly: true)
// add configuration to webview
        configuration.userContentController.addUserScript(populateLoginScript)

                       configuration.preferences.javaScriptCanOpenWindowsAutomatically = false
        self.webView = WKWebView(frame: CGRectZero, configuration:      configuration)

    println(populateLoginJS)
    super.init(coder: aDecoder)
    }

 override func viewDidLoad() {
//set navigation delegate of web view and navigate to specified url
    webView.navigationDelegate = self
    let URL = NSURL(string: "https://ifly.etihad.ae")
    let request = NSURLRequest(URL:URL!)
    webView.loadRequest(request)
   }

这一切在 IOS 模拟器上都可以正常工作。

话虽如此，我注意到最后一个 println(populateLoginJs) 通常会打印 .Js 文件的内容，但是当运行在我的设备上时，它会打印 optional""

所以要么写入 JS 文件不起作用，要么加载到 JS 文件不起作用那是我的预感

伙计们，我们将不胜感激任何想法或信息

Answer 1

我设法解决了这个问题，我发现写入文件从未在设备上编译过。在联系苹果支持后，他们说这是一个他们知道的错误。

os 我现在处理这个问题的方式是检查 URL webView 是否打开，如果为真则 webView.evaluateJavaScript

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