Matplotlib events

Can I used matplotlib event

Yes but matplotlib tools can be difficult to incorporate inside my library because it interfare with kivy touch behavior. Sometime, you need to declare and handle 3 matplotlib event (down/move/up) and it can't be very complicated (e.g matplotlib selector tool). Most matplotlib event can be easily integrated (e.g pick_event or on_enter event - example) but if you need to handle more matplotlib artists and use blit method, it can be harder. At the end, I think it better to use kivy widgets for this.