How to get the height of the webpage that got loaded in UIWebView?

Question

I have used following methods but still now not getting the correct value:

[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"] floatValue]

[webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight;"]

webView.scrollView.contentSize.height

I have accessed all above in,

- (void)webViewDidFinishLoad:(UIWebView *)aWebView 
{

}

see [this](http://stackoverflow.com/questions/745160/how-to-determine-uiwebview-height-based-on-content-within-a-variable-height-uit) and [this too](http://stackoverflow.com/questions/3936041/how-to-determine-the-content-size-of-a-uiwebview) — DD_, Mar 05 '13 at 09:15

score 2 · Answer 1 · edited Apr 29 '15 at 07:09

2

You can get this by 2 ways

method 1: Load your html like this

embedHTML = [embedHTML stringByAppendingFormat:
               @"<body><div id='size_div'>%@</div></body></html>",yourString];

And now in webViewDidFinishLoad method keep this statements...

NSString *output = [webView stringByEvaluatingJavaScriptFromString:
                      @"document.getElementById(\"size_div\").offsetHeight;"];  
NSLog(@"height: %@", output);

Method 2:

UIWebView *objWebView = [[UIWebView alloc] init];
for (UIScrollView *v in objWebView.subviews) {
    if ([v isKindOfClass:[UIScrollView class]])
    {
        CGSize requiredSize = v.contentSize;
    }
}

edited Apr 29 '15 at 07:09

Daniel

20,420
10
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149

answered Mar 05 '13 at 09:20

Murali

1,869
1
14
22

Method 1 working fine - In this also some truncation is their i manually adding constant 20 for getting correct height , but method 2 not working is it any additional thing want to be done for method 2 – Rooban Ponraj A Mar 05 '13 at 09:53
where u have added method2 ? – Murali Mar 05 '13 at 10:02
inside the webViewDidFinishLoad method. – Rooban Ponraj A Mar 05 '13 at 10:12

score 0 · Answer 2 · answered Mar 05 '13 at 09:16

I think webView.scrollView.contentSize is set automatically by the webView itself when loading the HTML. Have you tried it exactly like this:

- (void)webViewDidFinishLoad:(UIWebView *)webView {
     float h = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"] floatValue];

    // h is the height of the loaded webpage...

}

And don't forget to set the webView's delegate YourViewController: UIViewController <UIWebViewDelegate>

Exactly added same thing what you have mentioned above but not working. — Rooban Ponraj A, Mar 05 '13 at 09:44

score 0 · Answer 3 · answered Mar 05 '13 at 09:37

0

You can get webview height by using

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    float height = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"] floatValue];
}

answered Mar 05 '13 at 09:37

VRN

13
3

score -1 · Answer 4 · answered Sep 26 '17 at 11:08

-1

use this

let height = webView.scrollView.contetSize.height

answered Sep 26 '17 at 11:08

Berlin Raj

124
6

How to get the height of the webpage that got loaded in UIWebView?

4 Answers4