How to make corner for Arc

Question

I have made an arc like below. By specifying the Radius, Start angle, End angle

    CGContextAddArc(ctx, self.frame.size.width/2  , self.frame.size.height/2,
 self.radius, 2*M_PI, 3*M_PI/2-ToRad(angle), 0);

Now i want to make the corner of arch rounded. So need of drawing circles on the both ends. Because I'm using frame dimensions giving constants wont work.

Answer 1

You can set it easily by

Objective-C

CGContextSetLineCap(context, kCGLineCapRound);

Swift

context?.setLineCap(.round)
context?.addArc(center: center, radius: radius, startAngle: startAngle, endAngle: endAngle, clockwise: true/false)