layer « graphics « iPhone iPad Media Q&A

1. Sequence of CAAnimations - layer returns to initial position between subsequent calls    stackoverflow.com

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 ...

2. Drawing class to allow layer control    stackoverflow.com

I would like to implement a drawing class with the help of Quartz. I want to be able to save parts of what is drawn on separate layers. I want these ...

3. Multiple drawLayer:    stackoverflow.com

how can i use drawLayer for multiple layers in one class? I was thinking maybe something like this:

- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)context {
    if(layer == layer1) {
    ...

4. Help colorizing layer defined by image mask/bounds and overlaying the image on top    stackoverflow.com

I am currently experimenting with an avatar creation iOS app for a client, where at some point the user should have the option of changing the color of an item. The ...