I have a really simple UIView subclass, all it contains is this:
- (void)drawRect:(CGRect)rect
{
CGContextRef ctx = UIGraphicsGetCurrentContext();
CGContextSetRGBFillColor(ctx, 1.0f, 1.0f, 1.0f, 1.0f);
CGContextFillEllipseInRect(ctx, CGRectMake(10.0f, 10.0f, 100.0f,
100.0f));
}
It should draw a white circle. To use it, I'm programatically creating the view
using UIView initWithFrame: then adding it as a subview in my
UIViewController's viewDidLoad method. The problem is that a black square
appears behind the circle. I don't know if this is due to the fact that there
are several CALayers under the view. Any suggestions?
Independent Cocoa Developer, Macatomy Software
http://macatomy.com
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