DrawRect keeps drawing white background

Question

//inside init
_color = [UIColor orangeColor];
self.backgroundColor = [UIColor clearColor];
self.clearsContextBeforeDrawing = NO;

//inside drawRect
CGContextRef ctx = UIGraphicsGetCurrentContext();

CGContextSaveGState(ctx);
    CGContextAddEllipseInRect(ctx, rect);
    CGContextSetFillColorWithColor(ctx,
                                   _color.CGColor);
    CGContextFillPath(ctx);
CGContextRestoreGState(ctx);

The background keeps showing up as white rather then transparent. The ellipse also does not change color and shows up as black. Thank in advance to anyone who takes a look.

Is your view's opaque property turned off? – Marcus Adams Mar 04 '13 at 20:03 — Marcus Adams, Mar 04 '13 at 20:03
Yes, I'm afraid it's off and it still does it. – Yogurt Mar 04 '13 at 21:22 — Yogurt, Mar 04 '13 at 21:22

score 0 · Accepted Answer · edited May 23 '17 at 11:49

0

I think you can refer to this answer for your transparency issue : Setting A CGContext Transparent Background

As for your ellipse color issue, it correctly display as an orange ellipse on my simulator so you may check at possible overlays or other possible side effects from other parts from your code.

edited May 23 '17 at 11:49

Community

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answered Mar 04 '13 at 21:19

Alexis C.

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I was being a moron and I set the background to clear in the init but not in awakeFromNib. But thanks for your speedy response. – Yogurt Mar 05 '13 at 04:00

DrawRect keeps drawing white background

1 Answers1