How to detect scroll position of ListView in Flutter

Question

I'm using ListView widget to show items as a list. In a window three, items viewing must the middle item place in the middle.

So how can I detect position of ListView when scrolling stop?

How to detect ListView Scrolling stopped?

Answer 1

I used NotificationListener that is a widget that listens for notifications bubbling up the tree. Then use ScrollEndNotification, which indicates that scrolling has stopped.

For scroll position I used _scrollController that type is ScrollController.

NotificationListener(   child: ListView(     controller: _scrollController,     children: ...   ),   onNotification: (t) {     if (t is ScrollEndNotification) {       print(_scrollController.position.pixels);     }   }, ),