Top "Calayer" questions

What are the differences between a UIView and a CALayer?

Both have most of the same attributes, both support different kind of animations, both represent different data. What are the …

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iOS - How To Remove Previously Added Sublayers Of a UIView

I have a custom view which is a subclass of UIView. I added some sublayers to the custom view but …

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adding black overlay with 0.3 opacity over UIImageView

I have a UIImageView and I wanted to add a black overlay on top of it. What is the best …

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UIImage from CALayer in iOS

In my application, I have created a CALayer (with a few sublayers - the CALayer is composed of shapes added …

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After rotating a CALayer using CABasicAnimation the layer jumps back to it's unrotated position

I am trying to create a falling coin. The coin image is a CALayer with 2 CABasicAnimations on it - a …

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iOS White to Transparent Gradient Layer is Gray

I have a CAGradientLayer inserted to the bottom of this small detail view that pops up at the bottom of …

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How to draw radial gradients in a CALayer?

I know CAGradientLayer doesn't support radial gradient at the moment and only has option of kCAGradientLayerAxial. I want something like …

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How to disable CALayer implicit animations?

It's driving me crazy! I am working on a drawing application. Let's say I am working on a UIView called …

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Draw a line with a CALayer

I'm trying to draw a line between two points using a CALayer. Here is my code: //positions a CALayer to …

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Animating a CALayer's mask size change

I have a UIView subclass which uses a CAShapeLayer mask on its CALayer. The mask uses a distinct shape, with …

iphone objective-c core-animation calayer mask