Disable zoom WebView about down

[mbecker]

Not the perfect solution because double tap or scrolling down and the pinching out seems to work.

The better solution for me is to add:

extension DownView: UIScrollViewDelegate {
    public func viewForZooming(in scrollView: UIScrollView) -> UIView? {
        return nil
    }
}

Set the webview's scrollview delegate in DownView.init():

self.scrollView.delegate = self

Change the viewport in index.html to:

<meta name="viewport" content="width=device-width, initial-scale=1.0">

Change the font scale in the css file to whatever you like:

-ms-text-size-adjust: 80%;
-webkit-text-size-adjust: 80%;

[iwasrobbed]

If you're talking about the DownView web view, you should likely add this meta tag to the index.html file that gets rendered but keep in mind that this may not work in iOS 10 and above.

<meta name="viewport" content="width=device-width, user-scalable=no" />

You can find more info about disabling zoom on http://stackoverflow.com/q/4389932/308315