CoreGraphics: Drawing Dashed Lines

Suppose you wanna draw a dashed line all around a control. What should we do?. Well… simple. We need to invoke some CoreGraphics dark magic… it’s pretty self explanatory. The catch to it is that it’ll draw a dashed line. Play with it..!

[cc lang=”objc”]
static CGFloat const kDashedBorderWidth = (2.0f);
static CGFloat const kDashedPhase = (0.0f);
static CGFloat const kDashedLinesLength[] = {4.0f, 2.0f};
static size_t const kDashedCount = (2.0f);

– (void)drawRect:(CGRect)rect
[super drawRect:rect];

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetLineWidth(context, kDashedBorderWidth);
CGContextSetStrokeColorWithColor(context, [UIColor grayColor].CGColor);

CGContextSetLineDash(context, kDashedPhase, kDashedLinesLength, kDashedCount) ;

CGContextAddRect(context, rect);