router

type KeyLayout struct {
	DrawIndex int
	Layout    LayoutFunc
}

type LayoutFunc func(gtx layout.Context, th *material.Theme)

type Page interface {
	Layout(gtx layout.Context, th *material.Theme) layout.Dimensions
	IsActive() bool
	Enter()
	Leave()
}

type Router struct {
	Pages   map[interface{}]Page // does not keep ordering with range (use drawOrder)
	Current interface{}
	// contains filtered or unexported fields
}