protected open fun onTransform(page: View, position: Float): Unit
Overrides ABaseTransformer.onTransform
Called each .transformPage.
page - Apply the transformation to this page
position - Position of page relative to the current front-and-center position of the pager. 0 is front and
center. 1 is one full page position to the right, and -1 is one page position to the left.