快速从Webview检索HTML数据 [英] Swift Retrieve HTML data from Webview

问题描述

我正在尝试获取UIWebView中显示的网页标题内的数据.

I am trying to obtain the data within the header of a web page that is being displayed in a UIWebView.

如何从UIWebView获取原始(未格式化的)HTML字符串?

How do I get the raw (unformatted) HTML string from the UIWebView?

此外，我正在使用iOS9.

Also, I'm using iOS 9.

我的问题类似于从UIWebView读取HTML内容，但是这篇文章来自6年前.

My question is similar to Reading HTML content from a UIWebView , but this post is from 6 years ago.

推荐答案

针对所链接的问题，从最佳答案:

From the top answer on the question you linked:

NSString *html = [yourWebView stringByEvaluatingJavaScriptFromString: 
                                     @"document.body.innerHTML"];

将翻译成Swift:

let html = yourWebView.stringByEvaluatingJavaScriptFromString("document.body.innerHTML")

stringByEvaluatingJavaScriptFromString 返回一个可选参数，因此您以后可能希望使用 if let 语句:

stringByEvaluatingJavaScriptFromString returns a optional, so you'd probably want to later use an if let statement:

if let page = html {
    // Do stuff with the now unwrapped "page" string
}

这篇关于快速从Webview检索HTML数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！