UIWebView dynamic content size

Question

I\'ve been looking around and wasnt able to see any swift related ways to do this. I\'m trying to get my UIWebViews height to be dynamic. I have a UIWebView that loads data

Answer 1

I had problem with:

let height = webView.scrollView.contentSize.height

Sometimes my web view height simply didn't calculacte and stayed on default value. So finally I manage to find better solution that works fine, just replace that line code with:

let height = webView.stringByEvaluatingJavaScript(from: "document.body.scrollHeight")

This is mine final complete code:

    func webViewDidFinishLoad(_ webView: UIWebView) {

    //webview height
    webView.frame.size.height = 1
    webView.frame.size = webView.sizeThatFits(.zero)
    webView.scrollView.isScrollEnabled = false
    let height = webView.stringByEvaluatingJavaScript(from: "document.body.scrollHeight")
    if let height = height {
        if let heightInt = Int(height) {
            let heightFloat = Float(heightInt)

            webViewHeightConstraint.constant = CGFloat(heightFloat)
        }
    }
    webView.scalesPageToFit = true
}