views:

34

answers:

3

I have a UIWebView that contains a lot of text content. I need to be able to get the location of the UIWebView every time it moves. I am using this code to get the point:

pageYOffset = [[webView stringByEvaluatingJavaScriptFromString:@"window.pageYOffset"] intValue];

now I just need to make it so that this variables value is updated everytime the UIWebView position moves, or there is any scrolling. Is it possible to call a method whenever the UIWebView scrolls?

+1  A: 

I believe that if your header lists your VC as a UIScrollViewDelegate, you can use the -(void)scrollViewDidScroll:(UIScrollView *)scrollView method to find out when it scrolls.

Kolin Krewinkel
yeah that seems like it would work, but I just tried that and it didn't work...
Jerry
It seems you're correct..I tried multiple techniques to achieve this, failed on all. Sorry.
Kolin Krewinkel
A: 

if your requirement is to keep loading webview when user scrolls then you should paste your code into

- (void)webViewDidStartLoad:(UIWebView *)webView
Vaibhav Saran
A: 

You should extend UIWebView, like below

@implementation UIWebView(CustomScroll)
- (void) scrollViewDidScroll:(UIScrollView *)scrollView{
    [self.delegate scrollViewDidScroll: scrollView];
}
@end

and implement scrollViewDidScroll on your controller like:

- (void) scrollViewDidScroll:(UIScrollView *)scrollView{
    NSLog("webview scrolled");
}

and don't forget to set your controller to the delegate property of UIWebView.

Deniz Mert Edincik