ScrollView can detect its range, that's good. But sometimes we need a constant draggable area.
eg. Sometimes we do not want the scrollview to count some decorate sprites as its drag range, which is tweening scale or position at the side of the scroll view's panel. When player drag this view to the edge, restrict with panel will restrict to different position.This causes strange user experience.
Is there any way to change restrict way, like not restrict within panel, but a constant rectangle, or something like this?
