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feat: 添加 ScrollController 支持到画廊列表卡片和画廊页面，改善滚动体验

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lifegpc
2025-03-08 22:23:18 +08:00
parent a80278dffd
commit d737b85076
4 changed files with 113 additions and 69 deletions
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20
lib/components/scroll_parent.dart
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@@ -1,27 +1,29 @@
import 'package:flutter/material.dart';
class ScrollParent extends StatelessWidget {
final ScrollController controller;
final ScrollController? controller;
final Widget child;
const ScrollParent({super.key, required this.controller, required this.child});
const ScrollParent({super.key, this.controller, required this.child});
@override
Widget build(BuildContext context) {
if (controller == null) return child;
return NotificationListener<OverscrollNotification>(
onNotification: (OverscrollNotification value) {
if (value.overscroll < 0 && controller.offset + value.overscroll <= 0) {
if (controller.offset != 0) controller.jumpTo(0);
if (value.overscroll < 0 &&
controller!.offset + value.overscroll <= 0) {
if (controller!.offset != 0) controller!.jumpTo(0);
return true;
}
if (controller.offset + value.overscroll >=
controller.position.maxScrollExtent) {
if (controller.offset != controller.position.maxScrollExtent) {
controller.jumpTo(controller.position.maxScrollExtent);
if (controller!.offset + value.overscroll >=
controller!.position.maxScrollExtent) {
if (controller!.offset != controller!.position.maxScrollExtent) {
controller!.jumpTo(controller!.position.maxScrollExtent);
}
return true;
}
controller.jumpTo(controller.offset + value.overscroll);
controller!.jumpTo(controller!.offset + value.overscroll);
return true;
},
child: child,