在 iOS 中，有没有一种方法可以让按钮围绕弧线或圆移动？

Question

I have a custom control like the picture below, it is too complicated to draw all the images using core graphics. So I use the images designer give, but the problem is how to make the small circle(which is actually a button) on the big white circle(which is an UIImageView) move aroud the big circle? Thanks in advance!

Answer 1

You need to calculate all circumference points. Just set centre of your image to the points calculated by you. Automatically your image will start moving in circle.