class A extends StatelessWidget {
ScrollController _scrollController = ScrollController();
@override
Widget build(BuildContext context) {
return Scaffold(
floatingActionButton: FloatingActionButton(
onPressed: () {
_scrollController.jumpTo(0.0);
},
),
body: CustomScrollView(
controller: _scrollController,
slivers: [
SliverList(
delegate: SliverChildBuilderDelegate(
(BuildContext context, int index) {
return Image.network(
'https://picsum.photos/seed/${Random().nextInt(99999)}/500/500',
height: 200,
);
},
),
),
],
),
);
}
}When my list slides to the back, such as 400 to 500, clicking the button to top will cause the memory to rise suddenly
When I click on the above, a peak appears
[✓] Flutter (Channel stable, 1.20.2, on Mac OS X 10.15.6 19G73, locale zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[✓] Xcode - develop for iOS and macOS (Xcode 11.6)
[✓] Android Studio (version 3.5)
[!] IntelliJ IDEA Ultimate Edition (version 2019.3.4)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.48.0)
[✓] Connected device (1 available)
! Doctor found issues in 2 categories.
When my list slides to the back, such as 400 to 500, clicking the button to top will cause the memory to rise suddenly
When I click on the above, a peak appears