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I work with Xcode 4.3 for a iPad iOS 5 project.
I am performing some CG drawing operations into a CGContext in a UIView.
For example I draw a circle and move it (in response to user actions) in several positions of the UIView.
Ad some point I want to hide/remove/clear/delete this circle.
What is the best way to do this? Redraw the circle with line width = 0? Or with alpha = 0? Any idea?
Thank you.
Redraw the view without the circle and setNeedsDisplay.