Custom View modeled after hungry me order button

Direct renderings:

order.gif

Source code portal

Thank you

Some of the code is borrowed from the ElemeShoppingView project

The relevant knowledge

The effect of the custom View is not difficult to achieve, but the application of RecyclerView and other related View reuse controls, because of the reuse of View, so to deal with the state, will not appear chaos. ValueAnimator is used to implement the effect