27 lines
601 B
Dart
27 lines
601 B
Dart
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/// 自定义粘性委托类
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library;
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import 'package:flutter/material.dart';
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class CustomStickyHeader extends SliverPersistentHeaderDelegate {
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final PreferredSize child;
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CustomStickyHeader({required this.child});
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@override
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double get minExtent => child.preferredSize.height;
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@override
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double get maxExtent => child.preferredSize.height;
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@override
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bool shouldRebuild(SliverPersistentHeaderDelegate oldDelegate) {
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return true;
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}
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@override
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Widget build(BuildContext context, double shrinkOffset, bool overlapsContent) {
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return child;
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}
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}
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