I\'m trying to create an endless animation of layer rotating slightly to the left, then slightly to the right and back. So I\'m animating 10 degress to the left, then 20 to the right, then 10 to the l
I have an UIV开发者_开发问答iew where I was drawing some stuff inside -drawRect:. Now I need a CGImageRef from this graphics context or bitmap of the UIView. Is there an easy way to get that?Like this
I am drawing something into -drawRect of an UIView, and in this case I really want a certain amount of pixels. With the retina display, my view has a scaleFactor of 2.0 and when I draw something that
I\'m putting an image into a CALayer that could be irregularly transparent: theCardLayer.front = [CALayer layer];
I have an NSString like @\"Hello World\" and want to convert that into an bitmap with exactly 20 pixels height. The width of the bitmap should match the width of the text.
Before the retina display came to iOS, I\'ve developed some controls which are drawn using stretchable images and lots of core graphics code.
I would like to add 3D or glossy look to s开发者_如何学Pythonome iPhone UIButtons, but do so without the use of PNGs or stretchable images.I have a lot of buttons of varying shapes and sizes with lots
I\'d like to multiply r, g, b and a values of two CGImages, to use a single image as both a mask (in its alpha channel) and tint (in the rgb channels). I first tried simply:
I know that you can use CGContextSetShadow to draw a drop shadow, but is there any w开发者_开发知识库ay to draw an inner shadow?This implies that what you\'re drawing has an interior to view the shado
I would like to draw a ni开发者_Python百科ce looking fonts in Cocoa Touch (by \"nice looking\" I mean white font with blurred black border that looks like shadow)
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