How to draw a custom UIView that is just a circle - iPhone app

user_825630 0
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How would I go about drawing a custom UIView that is literally just a ball (a 2D circle)? Would I just override the drawRect method? And can someone show me the code for drawing a blue circle?

Also, would it be okay to change the frame of that view within the class itself? Or do I need to change the frame from a different class?

(just trying to set up a ball bouncing around)

ipad uiview iphone ios
9 Answers

There's another alternative for lazy people. You can set the layer.cornerRadius key path for your view in the Interface Builder. For example, if your view has a width = height of 48, set layer.cornerRadius = 24:

enter image description here

However, this only works if you have a static size of the view (width/height is fixed) and it's not showing the circle in the interface builder.

user_31521210
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