286 lines
9.6 KiB
Dart
286 lines
9.6 KiB
Dart
import 'package:flutter/material.dart';
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import '../../../../app/theme/app_colors.dart';
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import '../../../../app/theme/app_typography.dart';
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import '../../../../app/theme/app_spacing.dart';
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import '../../../../shared/widgets/coupon_card.dart';
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import '../../../ai_agent/presentation/widgets/ai_fab.dart';
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/// A2. 首页 - 搜索栏 + Banner + 热门分类 + 精选券 + AI Agent
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///
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/// Tab导航：首页/市场/我的券/消息/我的
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class HomePage extends StatelessWidget {
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const HomePage({super.key});
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: Stack(
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children: [
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CustomScrollView(
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slivers: [
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// Floating App Bar
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SliverAppBar(
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floating: true,
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pinned: false,
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backgroundColor: AppColors.background,
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elevation: 0,
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toolbarHeight: 60,
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title: _buildSearchBar(),
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actions: [
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IconButton(
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icon: const Icon(Icons.qr_code_scanner_rounded, size: 24),
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onPressed: () {},
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color: AppColors.textPrimary,
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),
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],
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),
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// Banner Carousel
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SliverToBoxAdapter(child: _buildBanner()),
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// Category Grid
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SliverToBoxAdapter(child: _buildCategoryGrid()),
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// AI Smart Suggestions
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SliverToBoxAdapter(child: _buildAiSuggestions()),
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// Section: Featured Coupons
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SliverToBoxAdapter(
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child: Padding(
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padding: const EdgeInsets.fromLTRB(20, 24, 20, 12),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text('精选好券', style: AppTypography.h2),
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GestureDetector(
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onTap: () {},
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child: Text('查看全部', style: AppTypography.labelSmall.copyWith(
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color: AppColors.primary,
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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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// Coupon List
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SliverPadding(
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padding: AppSpacing.pagePadding,
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sliver: SliverList(
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delegate: SliverChildBuilderDelegate(
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(context, index) => Padding(
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padding: const EdgeInsets.only(bottom: 12),
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child: CouponCard(
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brandName: _mockBrands[index % _mockBrands.length],
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couponName: _mockNames[index % _mockNames.length],
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faceValue: _mockFaceValues[index % _mockFaceValues.length],
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currentPrice: _mockPrices[index % _mockPrices.length],
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creditRating: _mockRatings[index % _mockRatings.length],
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expiryDate: DateTime.now().add(Duration(days: (index + 1) * 5)),
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onTap: () {
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// Navigator: → CouponDetailPage
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},
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),
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),
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childCount: 10,
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),
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),
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),
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const SliverPadding(padding: EdgeInsets.only(bottom: 100)),
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],
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),
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// AI FAB
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Positioned(
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right: 20,
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bottom: 100,
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child: AiFab(
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unreadCount: 3,
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onTap: () {
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// Show AI Chat Panel
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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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Widget _buildSearchBar() {
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return GestureDetector(
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onTap: () {
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// Navigator: → SearchPage
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},
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child: Container(
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height: 40,
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decoration: BoxDecoration(
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color: AppColors.gray50,
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borderRadius: AppSpacing.borderRadiusFull,
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border: Border.all(color: AppColors.borderLight),
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),
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child: Row(
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children: [
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const SizedBox(width: 14),
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const Icon(Icons.search_rounded, size: 20, color: AppColors.textTertiary),
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const SizedBox(width: 8),
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Text(
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'搜索券、品牌、分类...',
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style: AppTypography.bodyMedium.copyWith(color: AppColors.textTertiary),
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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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Widget _buildBanner() {
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return Container(
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height: 160,
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margin: const EdgeInsets.fromLTRB(20, 8, 20, 0),
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child: PageView.builder(
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itemCount: 3,
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itemBuilder: (context, index) {
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final colors = [
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AppColors.primaryGradient,
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AppColors.successGradient,
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AppColors.cardGradient,
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];
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final titles = ['新用户专享', '限时折扣', '热门推荐'];
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final subtitles = ['首单立减 \$10', '全场低至7折', '精选高折扣券'];
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return Container(
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margin: const EdgeInsets.symmetric(horizontal: 4),
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decoration: BoxDecoration(
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gradient: colors[index],
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borderRadius: AppSpacing.borderRadiusLg,
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),
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padding: const EdgeInsets.all(20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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Text(
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titles[index],
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style: AppTypography.h1.copyWith(color: Colors.white),
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),
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const SizedBox(height: 4),
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Text(
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subtitles[index],
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style: AppTypography.bodyMedium.copyWith(
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color: Colors.white.withValues(alpha: 0.8),
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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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Widget _buildCategoryGrid() {
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final categories = [
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('餐饮', Icons.restaurant_rounded, AppColors.couponDining),
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('购物', Icons.shopping_bag_rounded, AppColors.couponShopping),
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('娱乐', Icons.sports_esports_rounded, AppColors.couponEntertainment),
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('出行', Icons.directions_car_rounded, AppColors.couponTravel),
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('生活', Icons.home_rounded, AppColors.couponOther),
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('品牌', Icons.storefront_rounded, AppColors.primary),
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('折扣', Icons.local_offer_rounded, AppColors.error),
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('全部', Icons.grid_view_rounded, AppColors.textSecondary),
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];
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return Padding(
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padding: const EdgeInsets.fromLTRB(20, 20, 20, 0),
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child: GridView.builder(
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shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: 4,
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mainAxisSpacing: 8,
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crossAxisSpacing: 8,
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childAspectRatio: 0.85,
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),
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itemCount: categories.length,
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itemBuilder: (context, index) {
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final (name, icon, color) = categories[index];
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return GestureDetector(
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onTap: () {},
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 48,
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height: 48,
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decoration: BoxDecoration(
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color: color.withValues(alpha: 0.1),
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borderRadius: AppSpacing.borderRadiusMd,
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),
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child: Icon(icon, color: color, size: 24),
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),
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const SizedBox(height: 6),
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Text(name, style: AppTypography.caption.copyWith(
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color: AppColors.textPrimary,
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fontWeight: FontWeight.w500,
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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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Widget _buildAiSuggestions() {
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return Container(
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margin: const EdgeInsets.fromLTRB(20, 16, 20, 0),
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padding: const EdgeInsets.all(14),
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decoration: BoxDecoration(
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color: AppColors.primarySurface,
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borderRadius: AppSpacing.borderRadiusMd,
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border: Border.all(color: AppColors.primary.withValues(alpha: 0.15)),
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),
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child: Row(
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children: [
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Container(
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width: 32,
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height: 32,
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decoration: BoxDecoration(
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gradient: AppColors.primaryGradient,
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borderRadius: AppSpacing.borderRadiusSm,
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),
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child: const Icon(Icons.auto_awesome_rounded, color: Colors.white, size: 16),
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),
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const SizedBox(width: 10),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text('AI 推荐', style: AppTypography.labelSmall.copyWith(
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color: AppColors.primary,
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)),
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const SizedBox(height: 2),
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Text(
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'根据你的偏好，发现了3张高性价比券',
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style: AppTypography.bodySmall,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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],
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),
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),
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const Icon(Icons.chevron_right_rounded, color: AppColors.primary, size: 20),
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],
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),
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);
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}
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}
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// Mock data
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const _mockBrands = ['Starbucks', 'Amazon', 'Walmart', 'Target', 'Nike'];
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const _mockNames = ['星巴克 \$25 礼品卡', 'Amazon \$100 购物券', 'Walmart \$50 生活券', 'Target \$30 折扣券', 'Nike \$80 运动券'];
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const _mockFaceValues = [25.0, 100.0, 50.0, 30.0, 80.0];
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const _mockPrices = [21.25, 85.0, 42.5, 24.0, 68.0];
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const _mockRatings = ['AAA', 'AA', 'AAA', 'A', 'AA'];
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