The main graphics in iphone

Question

I am learning basic graphics on iphone. I have the basics on how to draw. I want to know how we can put any graphic, like a circle, in a loop so that we can move it? as in JAVA, we use the repaint method.

Answer 1

Depending on what you are trying to do, another solution might be to create an element that moves a separate UIView/ CALayerand animate its position using Core Animation (in this case, the loop and tweening are processed by the system). I highly recommend starting with getting started with graphics and animation .

Answer 2

iPhone setNeedsDisplay NSTimer CADisplayLink. drawRect , / .

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