107 lines
3.5 KiB
Dart
107 lines
3.5 KiB
Dart
import 'package:flutter/widgets.dart';
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import '../../../common/theme/theme.dart';
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import '../../../sample/product_sample_data.dart';
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class SliverCategoryDelegate extends SliverPersistentHeaderDelegate {
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final List<ProductCategory> categories;
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final String selectedCategoryId;
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final Function(String) onCategoryTap;
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SliverCategoryDelegate({
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required this.categories,
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required this.selectedCategoryId,
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required this.onCategoryTap,
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});
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@override
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double get minExtent => 60;
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@override
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double get maxExtent => 60;
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@override
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Widget build(
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BuildContext context,
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double shrinkOffset,
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bool overlapsContent,
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) {
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return Container(
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height: 60,
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decoration: BoxDecoration(
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color: AppColor.surface,
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border: Border(
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bottom: BorderSide(color: AppColor.borderLight, width: 1),
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),
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),
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child: ListView.builder(
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scrollDirection: Axis.horizontal,
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padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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itemCount: categories.length,
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itemBuilder: (context, index) {
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final category = categories[index];
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final isSelected = category.id == selectedCategoryId;
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return GestureDetector(
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onTap: () => onCategoryTap(category.id),
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child: Container(
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margin: EdgeInsets.only(right: 12),
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padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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decoration: BoxDecoration(
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color: isSelected ? AppColor.primary : AppColor.backgroundLight,
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borderRadius: BorderRadius.circular(20),
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border: Border.all(
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color: isSelected ? AppColor.primary : AppColor.border,
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width: 1,
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),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(category.icon, style: AppStyle.md),
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SizedBox(width: 8),
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Text(
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category.name,
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style: AppStyle.md.copyWith(
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color: isSelected
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? AppColor.textWhite
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: AppColor.textPrimary,
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fontWeight: FontWeight.w600,
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),
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),
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SizedBox(width: 4),
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Container(
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padding: EdgeInsets.symmetric(horizontal: 6, vertical: 2),
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decoration: BoxDecoration(
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color: isSelected
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? AppColor.textWhite.withOpacity(0.2)
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: AppColor.primary.withOpacity(0.1),
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borderRadius: BorderRadius.circular(10),
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),
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child: Text(
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"${category.productCount}",
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style: AppStyle.xs.copyWith(
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color: isSelected
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? AppColor.textWhite
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: AppColor.primary,
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fontWeight: FontWeight.bold,
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),
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),
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),
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],
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),
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),
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);
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},
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),
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);
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}
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@override
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bool shouldRebuild(covariant SliverPersistentHeaderDelegate oldDelegate) {
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return oldDelegate is SliverCategoryDelegate &&
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(oldDelegate.selectedCategoryId != selectedCategoryId ||
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oldDelegate.categories != categories);
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}
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}
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