自动填充用户名和密码UIWebView Swift [英] Autofill Username and Password UIWebView Swift

问题描述

我发现很多方法可以在objective-c中自动填充用户名和密码，但我无法弄清楚如何使用Swift。什么是Swift等效的代码，这对我想要完成的工作有用吗？谢谢

I've found many ways to autofill a username and password in objective-c, but I can't figure out how to make it work with Swift. What would be the Swift equivalent of this code and would this work for what I am trying to accomplish? Thanks

- (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];
}

我有这个但是由于某些原因它没有自动填充即使我有测试并正确存储值并正确抓取：

I have this but it doesn't autofill for some reason even though I have tested and the values are stored correctly and are being grabbed correctly:

func webViewDidFinishLoad(_ : 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[type='password']\"); \\ for (var i = inputFields.length >>> 0; i--;) { inputFields[i].value = \'\(savedPassword)\';}"
        self.webView.stringByEvaluatingJavaScriptFromString(loadUsernameJS)
        self.webView.stringByEvaluatingJavaScriptFromString(loadPasswordJS)
    }
}

推荐答案

这是对您提供的代码的简单快速转换。 SStringByEvaluatingJavaScriptFromString已经使用不同的javascript进行了测试，并且工作正常。

Here is a simple swift conversion of your provided code. SStringByEvaluatingJavaScriptFromString has been tested using different javascript and works correctly.

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)
    }
}

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