I have recently been a interface of CB, I want to achieve such an effect.
When my mouse moves to the button, the right side of the button will pop up a selection window for re-selection. Asking if you can implement PopupMenu, if you can, how is it implemented. If you can't, how do you implement it?
I am a rookie, I hope you have prawn to help me this younger brother.
Online guard! ! ! !
