Ios 自动填写用户名和密码UIWebView Swift

我已经找到了许多在objective-c中自动填写用户名和密码的方法，但我不知道如何使用Swift。这段代码的Swift等价物是什么？这对我正在努力实现的目标有用吗？谢谢

- (void)webViewDidFinishLoad:(UIWebView *)webView {
// Auto fill the username and password text fields, assuming the HTML has
// <input type="text" name="username"> and
// <input type="text" name="password">
NSString *savedUsername = [[NSUserDefaults standardUserDefaults] objectForKey:@"USERNAME"];
NSString *savedPassword = [[NSUserDefaults standardUserDefaults] objectForKey:@"PASSWORD"];
if (savedUsername.length != 0 && savedPassword.length != 0) {
    // Create js strings
    NSString *loadUsernameJS = [NSString stringWithFormat:@"var inputFields = document.querySelectorAll(\"input[name='username']\"); \
                                for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = '%@';}", savedUsername];
    NSString *loadPasswordJS = [NSString stringWithFormat:@"var inputFields = document.querySelectorAll(\"input[name='password']\"); \
                                for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = '%@';}", savedPassword];
    // Runs the JS
    [self.webview stringByEvaluatingJavaScriptFromString: loadUsernameJS];
    [self.webview stringByEvaluatingJavaScriptFromString: loadPasswordJS];
}

---

下面是您提供的代码的简单快速转换。SStringByEvaluationJavaScriptFromString已经使用不同的javascript进行了测试，并且工作正常

func webViewDidFinishLoad(webView: UIWebView!) {

    let savedUsername = NSUserDefaults.standardUserDefaults().stringForKey("USERNAME")
    let savedPassword = NSUserDefaults.standardUserDefaults().stringForKey("PASSWORD")

    if savedUsername == nil || savedPassword == nil {return}

    if ( countElements(savedUsername!) != 0 && countElements(savedPassword!) != 0) {
        let loadUsernameJS = "var inputFields = document.querySelectorAll(\"input[name='username']\"); \\ for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = \'\(savedUsername)\';}"
        let loadPasswordJS = "var inputFields = document.querySelectorAll(\"input[name='password']\"); \\ for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = \'\(savedPassword)\';}"

        self.webview.stringByEvaluatingJavaScriptFromString(loadUsernameJS)
        self.webview.stringByEvaluatingJavaScriptFromString(loadPasswordJS)
    }
}

---

您能为您的Swift实现添加到目前为止的内容吗？根据我在下面获得的帮助添加到上面，但它仍然不能正常工作，我无法找出为什么我知道正确的值存储在用户名和密码下的NSUserDefaults.standardUserDefaults中，但由于某些原因，此代码似乎无法在当你运行一个简单的javascript字符串eval时，你会得到一个成功的响应

let result=webView.stringByEvaluatingJavaScriptFromString（“document.title”）println（“\（result！）”）

我遇到了与上面的代码相同的问题，没有自动填充web视图。我在上面的代码中遇到了反斜杠的javascript语法错误。可选（Error Domain=WKErrorDomain Code=4“发生JavaScript异常”UserInfo={WKJavaScriptExceptionLineNumber=1，WKJavaScriptExceptionMessage=SyntaxError:标识符中的转义无效：'\'，WKJavaScriptExceptionColumnNumber=0，WKJavaScriptExceptionSourceURL=，NSLocalizedDescription=发生JavaScript异常}）

func webViewDidFinishLoad(webView: UIWebView!) {

    let savedUsername = NSUserDefaults.standardUserDefaults().stringForKey("USERNAME")
    let savedPassword = NSUserDefaults.standardUserDefaults().stringForKey("PASSWORD")

    if savedUsername == nil || savedPassword == nil {return}

    if ( countElements(savedUsername!) != 0 && countElements(savedPassword!) != 0) {
        let loadUsernameJS = "var inputFields = document.querySelectorAll(\"input[name='username']\"); \\ for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = \'\(savedUsername)\';}"
        let loadPasswordJS = "var inputFields = document.querySelectorAll(\"input[name='password']\"); \\ for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = \'\(savedPassword)\';}"

        self.webview.stringByEvaluatingJavaScriptFromString(loadUsernameJS)
        self.webview.stringByEvaluatingJavaScriptFromString(loadPasswordJS)
    }
}