检测 POST 方法/按钮单击 UIWebView

Question

我正在尝试在这里处理一个点击按钮：Link button 这是代码：

<form action="/contest-voting/" method="post" id="pimp-entities-contest-voting-form" accept-charset="UTF-8"><div><input type="hidden" name="nid" value="1200">

<input type="hidden" name="fb_id" value="">

<input type="hidden" name="form_build_id" value="form-iZa3h_R56jG3BZpQCaktyWo8exlP8PnURETJEm0omUk">

<input type="hidden" name="form_id" value="pimp_entities_contest_voting_form">
Nutze deinen <input type="image" id="edit-facebook" name="facebook" value="Per Facebook abstimmen" src="http://www.pimp-your-school.de/sites/all/themes/pimp_foundation/images/icon-voting-fb.png" class="form-submit">-Account oder deine <div class="form-item form-type-textfield form-item-email">

<input placeholder="E-Mail-Adresse" type="text" id="edit-email" name="email" value="" size="60" maxlength="128" class="form-text">

<input type="image" id="edit-submit" name="submit" value="Per E-Mail-Adresse abstimmen" src="http://www.pimp-your-school.de/sites/all/themes/pimp_foundation/images/icon-voting-3.png" class="form-submit"></div></form>

我已经尝试了所有这些不起作用的 StackOverflow 链接：

Identify submit button click of UIWebview,

Grabbing POST data from UIWebView,

UIWebView capture post,

Swift UIWebView shouldStartLoadWithRequest doesn't fire in iOS8,

Call swift function with javascript using UIWebview

还有其他方法吗？

Answer 1

我无法通过您的问题判断您是尝试提交表单还是观察何时提交。但是，如果您尝试提交表单，则可以这样做。

func webViewDidFinishLoad(_ webView: UIWebView) {

    // This adds an email to the email text field. This takes the id of the email text field.
    webView.stringByEvaluatingJavaScript(from: "document.getElementById('edit-email').value = \"example@example.com\"")

    // This submits the field. This takes the id of the form.
    webView.stringByEvaluatingJavaScript(from: "document.getElementById('pimp-entities-contest-voting-form').submit()")

}

我不确定如何观察提交的表单，因为

func webViewDidStartLoad(_ webView: UIWebView)

在提交表单时似乎没有被调用，因为通常情况下，您会在 url 更改时使用此函数。它应该更改为http://www.pimp-your-school.de/contest-voting/，但情况似乎并非如此。