Files
monisuo/flutter_monisuo/lib/ui/pages/asset/transfer_page.dart
sion123 7ed2435a4c refactor(theme): 迁移主题感知颜色至 ThemeExtension
- 创建 AppThemeColors ThemeExtension 类,统一管理主题感知颜色(涨跌色、卡片背景、渐变等)
- 从 AppColorScheme 移除主题感知辅助函数,仅保留静态颜色常量
- 在 AppTheme 中注册 ThemeExtension,支持深色/浅色主题工厂
- 重构所有 UI 组件使用 context.appColors 访问主题颜色,替代硬编码的 AppColorScheme 方法调用
- 移除组件中重复的 isDark 判断逻辑,简化颜色获取方式
- 保持向后兼容性,所有现有功能不变
2026-04-06 01:58:08 +08:00

492 lines
15 KiB
Dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:lucide_icons_flutter/lucide_icons.dart';
import '../../../core/theme/app_theme.dart';
import '../../../core/theme/app_theme_extension.dart';
import '../../../core/theme/app_spacing.dart';
import '../../../providers/asset_provider.dart';
import '../../../data/models/account_models.dart';
/// 划转页面
class TransferPage extends StatefulWidget {
const TransferPage({super.key});
@override
State<TransferPage> createState() => _TransferPageState();
}
class _TransferPageState extends State<TransferPage> {
final _amountController = TextEditingController();
final _focusNode = FocusNode();
int _direction = 1; // 1: 资金→交易, 2: 交易→资金
bool _isLoading = false;
@override
void initState() {
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
context.read<AssetProvider>().refreshAll(force: true);
});
}
@override
void dispose() {
_amountController.dispose();
_focusNode.dispose();
super.dispose();
}
// ============================================
// 数据访问
// ============================================
/// 获取资金账户余额
String get _fundBalance {
final provider = context.read<AssetProvider>();
return provider.fundAccount?.balance ?? provider.overview?.fundBalance ?? '0.00';
}
/// 获取交易账户 USDT 余额
String get _tradeUsdtBalance {
final provider = context.read<AssetProvider>();
final usdtHolding = provider.tradeAccounts.firstWhere(
(t) => t.coinCode.toUpperCase() == 'USDT',
orElse: () => AccountTrade(
id: 0,
userId: 0,
coinCode: 'USDT',
quantity: '0',
avgPrice: '1',
totalCost: '0',
currentValue: '0',
profit: '0',
profitRate: 0,
),
);
return usdtHolding.quantity;
}
/// 获取当前可用余额(根据方向)
String get _availableBalance => _direction == 1 ? _fundBalance : _tradeUsdtBalance;
/// 从账户名
String get _fromLabel => _direction == 1 ? '资金账户' : '交易账户';
String get _toLabel => _direction == 1 ? '交易账户' : '资金账户';
String get _fromBalance => _direction == 1 ? _fundBalance : _tradeUsdtBalance;
String get _toBalance => _direction == 1 ? _tradeUsdtBalance : _fundBalance;
// ============================================
// 业务逻辑
// ============================================
/// 执行划转
Future<void> _doTransfer() async {
final amount = _amountController.text;
final available = double.tryParse(_availableBalance) ?? 0;
final transferAmount = double.tryParse(amount) ?? 0;
if (transferAmount <= 0) {
_showSnackBar('请输入有效的划转金额');
return;
}
if (transferAmount > available) {
_showSnackBar('余额不足');
return;
}
setState(() => _isLoading = true);
try {
final response = await context.read<AssetProvider>().transfer(
direction: _direction,
amount: amount,
);
if (mounted) {
if (response.success) {
_amountController.clear();
_showSnackBar('划转成功');
Navigator.of(context).pop(true);
} else {
_showSnackBar(response.message ?? '划转失败');
}
}
} finally {
if (mounted) {
setState(() => _isLoading = false);
}
}
}
void _showSnackBar(String message) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(message)),
);
}
/// 设置快捷百分比金额
void _setQuickAmount(double percent) {
final available = double.tryParse(_availableBalance) ?? 0;
final amount = available * percent;
_amountController.text = amount.toStringAsFixed(8).replaceAll(RegExp(r'\.?0+$'), '');
}
/// 切换方向
void _toggleDirection() {
setState(() {
_direction = _direction == 1 ? 2 : 1;
});
}
// ============================================
// 构建 UI
// ============================================
@override
Widget build(BuildContext context) {
final colorScheme = Theme.of(context).colorScheme;
return Scaffold(
backgroundColor: colorScheme.surface,
appBar: AppBar(
backgroundColor: colorScheme.surfaceContainer,
elevation: 0,
scrolledUnderElevation: 0,
leading: IconButton(
icon: Icon(LucideIcons.arrowLeft, color: colorScheme.onSurface, size: 20),
onPressed: () => Navigator.of(context).pop(),
),
title: Text(
'账户划转',
style: AppTextStyles.headlineLarge(context),
),
centerTitle: true,
),
body: Consumer<AssetProvider>(
builder: (context, provider, _) {
return SingleChildScrollView(
padding: const EdgeInsets.fromLTRB(AppSpacing.md, AppSpacing.md, AppSpacing.md, AppSpacing.xl),
child: Column(
children: [
_buildTransferDirectionCard(),
const SizedBox(height: AppSpacing.lg),
_buildAmountSection(),
const SizedBox(height: AppSpacing.lg),
_buildTipsCard(),
const SizedBox(height: AppSpacing.lg),
_buildConfirmButton(),
],
),
);
},
),
);
}
// ============================================
// Transfer direction card
// ============================================
Widget _buildTransferDirectionCard() {
final colorScheme = Theme.of(context).colorScheme;
return Container(
width: double.infinity,
padding: const EdgeInsets.all(AppSpacing.lg),
decoration: BoxDecoration(
color: colorScheme.surfaceContainer,
borderRadius: BorderRadius.circular(AppRadius.xl),
border: Border.all(color: colorScheme.outlineVariant.withValues(alpha: 0.6)),
),
child: Column(
children: [
// Source account
_animatedSwitcher(
key: 'src-$_direction',
beginOffset: const Offset(0, -1),
child: _buildAccountRow(
label: '',
accountName: _fromLabel,
balance: _fromBalance,
),
),
// Swap button
GestureDetector(
onTap: _toggleDirection,
child: Container(
width: 36,
height: 36,
margin: const EdgeInsets.symmetric(vertical: AppSpacing.md),
decoration: BoxDecoration(
color: colorScheme.secondary,
shape: BoxShape.circle,
),
child: Center(
child: Icon(LucideIcons.arrowUpDown, size: 18, color: colorScheme.onSecondary),
),
),
),
// Destination account
_animatedSwitcher(
key: 'dst-$_direction',
beginOffset: const Offset(0, 1),
child: _buildAccountRow(
label: '',
accountName: _toLabel,
balance: _toBalance,
),
),
],
),
);
}
/// 统一的 AnimatedSwitcher 构造
Widget _animatedSwitcher({
required String key,
required Offset beginOffset,
required Widget child,
}) {
return AnimatedSwitcher(
duration: const Duration(milliseconds: 300),
switchInCurve: Curves.easeInOut,
switchOutCurve: Curves.easeInOut,
transitionBuilder: (widget, animation) {
return SlideTransition(
position: Tween<Offset>(begin: beginOffset, end: Offset.zero).animate(animation),
child: FadeTransition(opacity: animation, child: widget),
);
},
child: KeyedSubtree(key: ValueKey(key), child: child),
);
}
/// Single account row inside the direction card
Widget _buildAccountRow({
required String label,
required String accountName,
required String balance,
}) {
final colorScheme = Theme.of(context).colorScheme;
return SizedBox(
width: double.infinity,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(label, style: AppTextStyles.bodySmall(context)),
const SizedBox(height: AppSpacing.sm),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
Icon(
label == '' ? LucideIcons.wallet : LucideIcons.repeat,
size: 18,
color: colorScheme.onSurfaceVariant,
),
const SizedBox(width: AppSpacing.sm + 2),
Text(accountName, style: AppTextStyles.headlineMedium(context)),
],
),
Text(
'\u00A5 ${_formatBalance(balance)}',
style: AppTextStyles.headlineMedium(context),
),
],
),
],
),
);
}
// ============================================
// Amount input section
// ============================================
Widget _buildAmountSection() {
final colorScheme = Theme.of(context).colorScheme;
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Label row: "划转金额" + "全部划转"
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('划转金额', style: AppTextStyles.headlineSmall(context).copyWith(color: colorScheme.onSurfaceVariant)),
GestureDetector(
onTap: () => _setQuickAmount(1.0),
child: Text('全部划转', style: AppTextStyles.labelLarge(context).copyWith(
color: colorScheme.secondary,
fontWeight: FontWeight.w600,
)),
),
],
),
const SizedBox(height: 12),
// Amount input field
GestureDetector(
onTap: () => _focusNode.requestFocus(),
child: Container(
width: double.infinity,
height: 56,
padding: const EdgeInsets.symmetric(horizontal: AppSpacing.md),
decoration: BoxDecoration(
color: colorScheme.surfaceContainerHigh,
borderRadius: BorderRadius.circular(AppRadius.lg),
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Expanded(
child: TextField(
controller: _amountController,
focusNode: _focusNode,
keyboardType: const TextInputType.numberWithOptions(decimal: true),
inputFormatters: [
FilteringTextInputFormatter.allow(RegExp(r'^\d*\.?\d{0,8}')),
],
style: AppTextStyles.numberLarge(context),
decoration: InputDecoration(
hintText: '0.00',
hintStyle: AppTextStyles.numberLarge(context).copyWith(
color: context.appColors.onSurfaceMuted,
),
border: InputBorder.none,
contentPadding: EdgeInsets.zero,
isDense: true,
),
),
),
Padding(
padding: const EdgeInsets.only(left: AppSpacing.sm),
child: Text('USDT', style: AppTextStyles.headlineMedium(context).copyWith(
fontWeight: FontWeight.w400,
color: context.appColors.onSurfaceMuted,
)),
),
],
),
),
),
const SizedBox(height: 12),
// Percent buttons
Row(
children: [0.25, 0.50, 0.75, 1.0].asMap().entries.map((entry) {
final index = entry.key;
final percent = entry.value;
final label = '${(percent * 100).toInt()}%';
return Padding(
padding: EdgeInsets.only(left: index > 0 ? AppSpacing.sm : 0),
child: _buildPercentButton(label, percent),
);
}).toList(),
),
],
);
}
Widget _buildPercentButton(String label, double percent) {
final colorScheme = Theme.of(context).colorScheme;
return Expanded(
child: GestureDetector(
onTap: () => _setQuickAmount(percent),
child: Container(
height: 36,
decoration: BoxDecoration(
color: colorScheme.surfaceContainerHigh,
borderRadius: BorderRadius.circular(AppRadius.sm),
),
child: Center(
child: Text(label, style: AppTextStyles.headlineSmall(context)),
),
),
),
);
}
// ============================================
// Tips card & Confirm button
// ============================================
Widget _buildTipsCard() {
final upColor = context.appColors.up;
return Container(
width: double.infinity,
padding: const EdgeInsets.symmetric(horizontal: AppSpacing.md, vertical: 12),
decoration: BoxDecoration(
color: context.appColors.upBackground,
borderRadius: BorderRadius.circular(AppRadius.lg),
),
child: Row(
children: [
Icon(LucideIcons.info, size: 16, color: upColor),
const SizedBox(width: AppSpacing.sm),
Expanded(
child: Text(
'划转即时到账,无需手续费',
style: AppTextStyles.bodyMedium(context).copyWith(color: upColor),
),
),
],
),
);
}
Widget _buildConfirmButton() {
final colorScheme = Theme.of(context).colorScheme;
return SizedBox(
width: double.infinity,
height: 52,
child: GestureDetector(
onTap: _isLoading ? null : _doTransfer,
child: Container(
decoration: BoxDecoration(
color: colorScheme.secondary,
borderRadius: BorderRadius.circular(AppRadius.lg),
),
child: Center(
child: _isLoading
? SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(colorScheme.onSecondary),
),
)
: Text(
'确认划转',
style: AppTextStyles.displayMedium(context).copyWith(
color: colorScheme.onSecondary,
fontSize: 16,
),
),
),
),
),
);
}
// ============================================
// Helpers
// ============================================
String _formatBalance(String balance) {
final val = double.tryParse(balance);
if (val == null) return '0.00';
return val.toStringAsFixed(2);
}
}