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iosswiftuiwebview

How to get the html content from UIWebView?

I'm loading a web page using UIWebView

let urlStr = "http://duckduckgo.com"
let urlReq = NSMutableURLRequest(URL: NSURL(string: urlStr)!)
webView.loadRequest(urlReq)

Then, when the page has finished loading, I want to access the html content

func webViewDidFinishLoad(webView: UIWebView) {
    let href = webView.stringByEvaluatingJavaScriptFromString("window.location.href")
    println("window.location.href  = \(href)")

    let doc = webView.stringByEvaluatingJavaScriptFromString("document")
    println("document = \(doc)")
}

But document just return an empty string (Optional("")). The window.location.href part is working fine. What I'm I doing wrong?

Solution

  • I think you have to evaluate the javascript like this:

    let doc = webView.stringByEvaluatingJavaScriptFromString("document.documentElement.outerHTML")

    In this case you get the entire HTML.