NestedPageView swipes back before NestedListView reaches top of page

[jmicho-alx]

With a setup of:

• NestedPageView
  → first page - not scrollable
  → second page - NestedListView

When I'm going to the second page and scroll the list view down, then scroll it back up, sometimes page view swipes back before reaching the top of the list view. Is this behaviour known/expected? Is there a way to disable it?

Flutter version: 3.7.12
Package version: 0.0.7

[hgraceb]

Due to the lack of sample code or more information, I may have misunderstood. However, if the ListView scrolls to the edge and then scrolls back quickly, the expected behavior is for the Page to swipe to switch the PageView. This is the default behavior of PageView and currently there is no logic to disable this behavior.

[jmicho-alx]

Okay, sorry for that. This is the minimum reproducible example:

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
      body: NestedPageView(
        scrollDirection: Axis.vertical,
        children: [
          Container(
            color: Colors.green,
            child: const Text('page 1', style: TextStyle(fontSize: 30)),
          ),
          LayoutBuilder(
            builder: (context, constraints) => NestedListView(
              children: [
                Container(
                  height: constraints.maxHeight * 2,
                  color: Colors.orange,
                  child: const Text('page 2', style: TextStyle(fontSize: 30)),
                ),
              ],
            ),
          )
        ],
      ),
    ));
  }
}

These are the two results, happening when scrolling down the list view. The first one is correct behavior, the second one -- incorrect. I think it happens with quick scrolling, it's incorrectly detected as gesture and swipe occurs.