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    <p>You'll need to subclass <code>UIView</code> and modify the <code>drawRect:</code> method to allow for a radius. For a code sample of a <code>drawRect:</code> with a fixed radius of 10.0px, try this:</p> <pre><code>- (void)drawRect:(CGRect)rect { float radius = 10.0f; CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetRGBFillColor(context, 255,255,255,0.25); CGContextMoveToPoint(context, rect.origin.x, rect.origin.y + radius); CGContextAddLineToPoint(context, rect.origin.x, rect.origin.y + rect.size.height - radius); CGContextAddArc(context, rect.origin.x + radius, rect.origin.y + rect.size.height - radius, radius, M_PI / 4, M_PI / 2, 1); CGContextAddLineToPoint(context, rect.origin.x + rect.size.width - radius, rect.origin.y + rect.size.height); CGContextAddArc(context, rect.origin.x + rect.size.width - radius, rect.origin.y + rect.size.height - radius, radius, M_PI / 2, 0.0f, 1); CGContextAddLineToPoint(context, rect.origin.x + rect.size.width, rect.origin.y + radius); CGContextAddArc(context, rect.origin.x + rect.size.width - radius, rect.origin.y + radius, radius, 0.0f, -M_PI / 2, 1); CGContextAddLineToPoint(context, rect.origin.x + radius, rect.origin.y); CGContextAddArc(context, rect.origin.x + radius, rect.origin.y + radius, radius, -M_PI / 2, M_PI, 1); CGContextFillPath(context); } </code></pre> <p>So the best way to do this would be to add</p> <pre><code>@property CGFloat radius; </code></pre> <p>to your header file, and override the default constructor to read:</p> <pre><code>-(id) initWithFrame:(CGRect)aRect radius:(CGFloat)rad color:(UIColor *)bgColor opacity:(CGFloat)opacity { if (self = [super initWithFrame:aRect]) { [self setOpacity:opacity]; [self setBackgroundColor:bgColor]; [self setRadius:rad]; } } </code></pre> <p>and tweak my above method to include <code>self.radius</code> for all <code>radius</code> calls, removing the <code>float</code> declaration at the top.</p>
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    1. POHow to draw a rounded rectangle with a SOFT EDGE on the iPhone?
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    1. USSam Ritchie
    1. USSam Ritchie
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      1. VTDownMod
    1. COThis will certainly get a rounded rectangle, but it has a hard border. I'm looking for a technique that creates a soft border.
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      1. USHilton Campbell
    2. COHmm, maybe this technique will help? http://www.raywenderlich.com/2079/core-graphics-101-shadows-and-gloss
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      1. USSam Ritchie
 

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