ScrollController not attached to any scroll views

Question

I\'m using CustomScrollView, and providing it with a controller. ScrollController works, I even added a listener to it and print out the position of the scroll view.

Answer 1

@carlosx2 answer is correct but if someone wonder where to put WigetsBinding. So here it is.

@override
void initState(){
  super.initState();
  WidgetsBinding.instance.addPostFrameCallback((_){
    //write or call your logic
    //code will run when widget rendering complete
  });
}