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    <p>Okay, I think I've found a pretty good solution to this problem. The trick is to constantly readjust the <code>imageView's</code> frame. I find this works much better than constantly adjusting the <code>contentInsets</code> or <code>contentOffSets</code>. I had to add a bit of extra code to accommodate both portrait and landscape images.</p> <p>Here's the code:</p> <pre><code>- (void) scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale { CGSize screenSize = [[self view] bounds].size; if (myScrollView.zoomScale &lt;= initialZoom +0.01) //This resolves a problem with the code not working correctly when zooming all the way out. { imageView.frame = [[self view] bounds]; [myScrollView setZoomScale:myScrollView.zoomScale +0.01]; } if (myScrollView.zoomScale &gt; initialZoom) { if (CGImageGetWidth(temporaryImage.CGImage) &gt; CGImageGetHeight(temporaryImage.CGImage)) //If the image is wider than tall, do the following... { if (screenSize.height &gt;= CGImageGetHeight(temporaryImage.CGImage) * [myScrollView zoomScale]) //If the height of the screen is greater than the zoomed height of the image do the following... { imageView.frame = CGRectMake(0, 0, 320*(myScrollView.zoomScale), 368); } if (screenSize.height &lt; CGImageGetHeight(temporaryImage.CGImage) * [myScrollView zoomScale]) //If the height of the screen is less than the zoomed height of the image do the following... { imageView.frame = CGRectMake(0, 0, 320*(myScrollView.zoomScale), CGImageGetHeight(temporaryImage.CGImage) * [myScrollView zoomScale]); } } if (CGImageGetWidth(temporaryImage.CGImage) &lt; CGImageGetHeight(temporaryImage.CGImage)) //If the image is taller than wide, do the following... { CGFloat portraitHeight; if (CGImageGetHeight(temporaryImage.CGImage) * [myScrollView zoomScale] &lt; 368) { portraitHeight = 368;} else {portraitHeight = CGImageGetHeight(temporaryImage.CGImage) * [myScrollView zoomScale];} if (screenSize.width &gt;= CGImageGetWidth(temporaryImage.CGImage) * [myScrollView zoomScale]) //If the width of the screen is greater than the zoomed width of the image do the following... { imageView.frame = CGRectMake(0, 0, 320, portraitHeight); } if (screenSize.width &lt; CGImageGetWidth (temporaryImage.CGImage) * [myScrollView zoomScale]) //If the width of the screen is less than the zoomed width of the image do the following... { imageView.frame = CGRectMake(0, 0, CGImageGetWidth(temporaryImage.CGImage) * [myScrollView zoomScale], portraitHeight); } } [myScrollView setZoomScale:myScrollView.zoomScale -0.01]; } </code></pre>
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    1. POCenter content of UIScrollView when smaller
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