Home/ Questions/Q 6536671
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T10:31:20+00:00

I want to draw a circle in my application. Actually, there is a timer

  • 0

I want to draw a circle in my application.

Actually, there is a timer for 20 seconds and I have to draw a circle with red and green colors, according to the remaining time.

Please help me if you have code or similar examples.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    To draw a circle you may use (in your drawRect method)

    CGContextRef context = UIGraphicsGetCurrentContext();   
CGContextBeginPath (context);

CGContextAddArc (context, CENTER_X, CENTER_Y, RADIUS, 0, 2*M_PI, 0);
CGContextDrawPath (context, kCGPathFillStroke);

    To simulate the timer you may consider use CGContextAddLineToPoint and CGContextMoveToPoint to draw lines and CGContextSetFillColor to change the current fill color.

    Check CGContext Reference

    • 0