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    <p>I have another solution that works great.</p> <p>On one hand, Ortwin's approach &amp; solution works only with iOS 6.0 and later, but fails to work correctly on iOS 5.0, 5.1 and 5.1.1, and on the other hand there is something that I don't like and can't understand with Ortwin's approach, it's the use of the method <code>[webView sizeThatFits:CGSizeZero]</code> with the parameter <code>CGSizeZero</code> : If you read Apple Official documentation about this methods and its parameter, it says clearly : </p> <blockquote> <p>The default implementation of this method returns the size portion of the view’s bounds rectangle. Subclasses can override this method to return a custom value based on the desired layout of any subviews. For example, a UISwitch object returns a fixed size value that represents the standard size of a switch view, and a UIImageView object returns the size of the image it is currently displaying.</p> </blockquote> <p>What I mean is that it's like he came across his solution without any logic, because reading the documentation, the parameter passed to <code>[webView sizeThatFits: ...]</code> should at least have the desired <code>width</code>. With his solution, the desired width is set to the <code>webView</code>'s frame before calling <code>sizeThatFits</code> with a <code>CGSizeZero</code> parameter. So I maintain this solution is working on iOS 6 by "chance".</p> <p>I imagined a more rational approach, which has the advantage of working for iOS 5.0 and later... And also in complex situations where more than one webView (With its property <code>webView.scrollView.scrollEnabled = NO</code> is embedded in a <code>scrollView</code>.</p> <p>Here is my code to force the Layout of the <code>webView</code> to the desired <code>width</code> and get the corresponding <code>height</code> set back to the <code>webView</code> itself:</p> <pre><code>- (void)webViewDidFinishLoad:(UIWebView *)aWebView { aWebView.scrollView.scrollEnabled = NO; // Property available in iOS 5.0 and later CGRect frame = aWebView.frame; frame.size.width = 200; // Your desired width here. frame.size.height = 1; // Set the height to a small one. aWebView.frame = frame; // Set webView's Frame, forcing the Layout of its embedded scrollView with current Frame's constraints (Width set above). frame.size.height = aWebView.scrollView.contentSize.height; // Get the corresponding height from the webView's embedded scrollView. aWebView.frame = frame; // Set the scrollView contentHeight back to the frame itself. } </code></pre> <p>Note that in my example, the <code>webView</code> was embedded in a custom <code>scrollView</code> having other <code>webViews</code>... All these <code>webViews</code> had their <code>webView.scrollView.scrollEnabled = NO</code>, and the last piece of code I had to add was the calculation of the <code>height</code> of the <code>contentSize</code> of my custom <code>scrollView</code> embedding these <code>webViews</code>, but it was as easy as summing my <code>webView</code>'s <code>frame.size.height</code> computed with the trick described above...</p>
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    1. POHow to determine the content size of a UIWebView?
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    1. COThis is much more elegant than the accepted solution, and it doesn't rely undocumented and undefined behavior. It's much less hackish than inserting javascript. I wish I could upvote this 64 times.
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    2. COThat's exactly what I tryed to explain. Thank you. And it great advantage is that it seems to work under all iOS versions.
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    3. COThe solution looks nice indeed, but be careful if you're still targeting iOS 4.x. `-[UIWebView scrollView]` is available in iOS 5.0 or later only.
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      1. USOrtwin Gentz
 

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