Create a circle programmatically

Create a New view then add this code:

- (void)drawRect:(CGRect)rect {

    if (canDraw == YES) {

        // The color is by this line CGContextSetRGBFillColor( context , red , green , blue , alpha);

        CGContextRef contextRef = UIGraphicsGetCurrentContext();

        // Draw a circle (filled)

        CGContextFillEllipseInRect(contextRef, CGRectMake(100, 100, 25, 25));

        CGContextSetRGBFillColor(contextRef, 0, 0, 255, 1.0);

        

        // Draw a circle (border only)

        CGContextStrokeEllipseInRect(contextRef, CGRectMake(100, 200, 25, 25));

        CGContextSetRGBFillColor(contextRef, 0, 0, 255, 1.0); 

    }

}