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    <p>You can add a category on UIImage and include this method:</p> <pre><code>// Return the image, but with rounded corners. Useful for masking an image // being used in a UITableView which has grouped style - (UIImage *)imageWithRoundedCorners:(UIRectCorner)corners radius:(CGFloat)radius { // We need to create a CGPath to set a clipping context CGRect aRect = CGRectMake(0.f, 0.f, self.size.width, self.size.height); CGPathRef clippingPath = [UIBezierPath bezierPathWithRoundedRect:aRect byRoundingCorners:corners cornerRadii:CGSizeMake(radius, radius)].CGPath; // Begin drawing // Start a context with a scale of 0.0 uses the current device scale so that this doesn't unnecessarily drop resolution on a retina display. // Use `UIGraphicsBeginImageContextWithOptions(aRect.size)` instead for pre-iOS 4 compatibility. UIGraphicsBeginImageContextWithOptions(aRect.size, NO, 0.0); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextAddPath(context, clippingPath); CGContextClip(context); [self drawInRect:aRect]; UIImage *croppedImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return croppedImage; } </code></pre> <p>Then when you're configuring your cells, in the table view controller, call something like:</p> <pre><code>if ( *SINGLE_ROW* ) { // We need to clip to both corners cell.imageView.image = [image imageWithRoundedCorners:(UIRectCornerTopLeft | UIRectCornerBottomLeft) radius:radius]; } else if (indexPath.row == 0) { cell.imageView.image = [image imageWithRoundedCorners:UIRectCornerTopLeft radius:radius]; } else if (indexPath.row == *NUMBER_OF_ITEMS* - 1) { cell.imageView.image = [image imageWithRoundedCorners:UIRectCornerBottomLeft radius:radius]; } else { cell.imageView.image = image; } </code></pre> <p>but replace the SINGLE_ROW etc with real logic to determine whether you've got a single row in a section, or it's the last row. One thing to note here, is that I've found (experimentally) that the radius for a group style table is 12, which works perfectly in the simulator, but not on an iPhone. I've not been able to test it on a non-retina device. A radius of 30 looks good on the iPhone 4 (so I'm wondering if this is an image scale thing, as the images I'm using are from the AddressBook, so don't have an implied scale factor). Therefore, I've got some code before this that modifies the radius...</p> <pre><code>CGFloat radius = GroupStyleTableCellCornerRadius; if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] &amp;&amp; [[UIScreen mainScreen] scale] == 2){ // iPhone 4 radius = GroupStyleTableCellCornerRadiusForRetina; } </code></pre> <p>hope that helps.</p>
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    1. USDaniel Thorpe
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    1. COI actually do this in a slightly different way now, see http://stackoverflow.com/questions/2171506/add-rounded-corners-to-uiimageview/10515546#10515546 and it's even better to put this category on UIView, which then lets you round rect anything.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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