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I am using an AQGridView to display my data in a grid on iPad. Every cell is a UIView subclass and typically, there are 18 cells displayed simultaneously.
I would like to add a round corner to these cells, so I set the cornerRadius property of the relevant layers (i.e. the layer of the main UIView and of one subview). However, this results in performance issues and the scrolling is not smooth any more. When using other CALayer properties, such as shadowOpacity, this does not happen.
Are there any other ways to add a rounded corner (apart from using an image)? Or am I doing something wrong?
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If you start with a regular UIView it has square corners. You can give it round corners by changing the cornerRadius property of the view's layer . and smaller values give less rounded corners. Both clipsToBounds and masksToBounds are equivalent.
Add subview with the same color which will be centered on the parent and will be with several pixels smaller. Like this you will have space from each side of the parent. On the parent turn on clipping subviews and add shadow to the inner view. Like this, you can have an inner shadow.
Select the view that you want to round and open its Identity Inspector. In the User Defined Runtime Attributes section, add the following two entries: Key Path: layer. cornerRadius , Type: Number, Value: (whatever radius you want)
I also saw a major performance hit when using cornerRadius on the layer of a view that contained a UIImageView subview. Rasterization solved that problem: view.layer.shouldRasterize = YES;
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