extended nested scroll view to fix following issues. 1.pinned sliver header issue 2.inner scrollables in tabview sync issue 3.pull to refresh is not work. 4.do without ScrollController in NestedScrollView's body
../../.pub-cache/hosted/pub.flutter-io.cn/extended_nested_scroll_view-0.4.0/lib/src/old_extended_nested_scroll_view.dart:1069:7: Error: The non-abstract class '_NestedScrollPosition' is missing implementations for these members:
ScrollPosition.pointerScroll
flutter doctor -v:
[✓] Flutter (Channel beta, 1.26.0-17.6.pre, on Mac OS X 10.15.5 19F101 darwin-x64, locale zh-Hans-CN)
• Flutter version 1.26.0-17.6.pre at /Users/liuyanfeng/Library/flutter
• Framework revision a29104a69b (3 days ago), 2021-02-16 09:26:56 -0800
• Engine revision 21fa8bb99e
• Dart version 2.12.0 (build 2.12.0-259.12.beta)
• Pub download mirror https://pub.flutter-io.cn
• Flutter download mirror https://storage.flutter-io.cn
../../.pub-cache/hosted/pub.flutter-io.cn/extended_nested_scroll_view-0.4.0/lib/src/old_extended_nested_scroll_view.dart:1069:7: Error: The non-abstract class '_NestedScrollPosition' is missing implementations for these members: