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POdrawRect: isn't working
 

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    <p>I want to place some "handles" on a <code>UIView</code> I have on-screen.</p> <p>So, I'm creating more <code>UIView</code>s, one at each corner of the <code>UIView</code>'s frame rectangle, and I simply want to draw a circle that "fills" the rectangle that is the frame of the "handle" <code>UIView</code>.</p> <p>Here's what I mean:</p> <p><b>How I create the "HandleView":</b></p> <pre><code>CGPoint upperLeft = CGPointMake([[self viewToMove] frame].origin.x - 5, [[self viewToMove] frame].origin.y - 5); HandleView *uL = [[HandleView alloc] initWithFrame:CGRectMake(upperLeft.x, upperLeft.y, 10, 10)]; [self setUpperLeftHandle:uL]; [uL release]; [[self view] addSubview:[self upperLeftHandle]]; </code></pre> <p><b>drawRect: for HandleView:</b></p> <pre><code>- (void)drawRect:(CGRect)rect { // Drawing code CGContextRef context = UIGraphicsGetCurrentContext(); [[UIColor orangeColor] set]; CGContextFillEllipseInRect(context, [self frame]); } </code></pre> <p>What I'm getting is just a set of black rectangles where I place the HandleViews. I'm not sure why they're black, but I can change the color by changing the <code>[HandleView backgroundColor]</code> property. I cannot, though, get anything to DRAW on this view. Calling <code>setNeedsDisplay</code> doesn't seem to make any difference.</p> <p>Also, the <code>drawRect:</code> method IS being called, so there's a problem with the code there, probably not anywhere else.</p> <p>It's been a while since I've messed with custom drawing, but I don't remember it being this hard.</p> <p>What am I missing?</p> <p>Thanks!!!</p> <p>Update:</p> <p>Modified code to this:</p> <pre><code>- (id)initWithFrame:(CGRect)frame { if ((self = [super initWithFrame:frame])) { // Initialization code [self setBackgroundColor:[UIColor clearColor]]; } return self; } - (void)drawRect:(CGRect)rect { // Drawing code CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetRGBFillColor(context, 100, 100, 100, 1.0); CGContextFillEllipseInRect(context, rect); } </code></pre> <p>Now, I see the circle, but only where it overlays another view. Where it's just sitting on top of the "background" UIView, I get nothing I can see. Also, even though the color is (100, 100, 100), it shows up white/light-light-gray.</p> <p>What's the deal?</p>
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    1. COUhm, I would try with CGContextSetRGBFillColor instead of [[UIColor orangeColor]set]. Also, avoid to use [self frame] inside that method: you have already the rect passed as parameter, use that or get the clip box with CGContextGetClipBoundingBox. The CGContext reference and the Quartz 2D Programming Guide cover this topic pretty good.
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    2. COYeah, the [[UIColor orangeColor] set] line was a mistake. I took that out and changed [self frame] to rect, but still no dice. Thoughts?
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    3. COI'm new to asking questions here... is there a way to mark this resolved or does it just stay "open"?
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