How to reset UIWebView's zoom? I'm already using scalesPagesToFit = YES;

Question

Hi guys,

I've been looking for the past week for the answer to this question.

I have a UIWebView, inside of a UIScrollView. Everything works great, but I want the content of the UIWebView to reset its zoom, when the orientation changes.

In the HTML inside the UIWebView, I set the width of the viewport (w/ a meta tag) to "device-width" and then on the Obj-C side, I set the scalesPagesToFit = YES;

I've tried resetting the zoom with javascript; by replacing the meta tags in runtime; reloading; accessing the UIScrollView inside of the UIWebView; etc...

but with no success.

Any of you gods know a workaround?

The only one I can think off is to recreate the UIWebViews every time we change the orientation, but that makes them flash to white whilst rendering content, which looks terrible :(

Any thoughts?

Many thanks, Andre

Answer 1

I'm just guessing here and haven't tried, but AFAIK a UIWebView has a UIScrollView child. So one should be able to do:

for (UIScrollView *scroll in [myWebView subviews]) {
    // Make sure it really is a scroll view and reset the zoom scale.
    if ([scroll respondsToSelector:@selector(setZoomScale:)])
        [scroll setZoomScale:1.0];
}