Article From:https://segmentfault.com/q/1010000012149456
Question:


Has anyone written this moving circle? How did this be done? Thank you for teaching. Thank you.

Answer 0:


https://www.iviewui.com/compo…

That’s the principle that he has source code

Answer 1:

This is a progress note note that has been written before
http://www.qdfuns.com/notes/3…
The principle is almost the same

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