Files
monisuo/flutter_monisuo/lib/ui/pages/asset/transfer_page.dart
sion e3c5a0b24d feat: 为划转页面账户卡片添加位置互换动画
- 移除按钮旋转动画,保持按钮静止
- 两个账户卡片(从/到)平滑互换位置
- 使用 AnimatedSwitcher + FadeTransition + SlideTransition
- 动画时长 300ms,easeOut 曲线
- 上方卡片向上滑出,下方卡片向下滑入
- 视觉效果更流畅自然
2026-03-30 11:47:07 +08:00

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import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:shadcn_ui/shadcn_ui.dart';
import 'package:provider/provider.dart';
import 'package:google_fonts/google_fonts.dart';
import '../../../core/theme/app_color_scheme.dart';
import '../../../core/theme/app_spacing.dart';
import '../../../providers/asset_provider.dart';
import '../../../data/models/account_models.dart';
import '../../shared/ui_constants.dart';
import '../../components/neon_glow.dart';
/// 划转页面 - 币安风格
class TransferPage extends StatefulWidget {
const TransferPage({super.key});
@override
State<TransferPage> createState() => _TransferPageState();
}
class _TransferPageState extends State<TransferPage> {
final _amountController = TextEditingController();
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();
super.dispose();
}
/// 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 {
return _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;
/// 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;
// 保留8位小数去除末尾0
_amountController.text = amount.toStringAsFixed(8).replaceAll(RegExp(r'\.?0+$'), '');
}
/// 切换方向
void _toggleDirection() {
setState(() {
_direction = _direction == 1 ? 2 : 1;
});
}
@override
Widget build(BuildContext context) {
final colorScheme = Theme.of(context).colorScheme;
final isDark = Theme.of(context).brightness == Brightness.dark;
return Scaffold(
backgroundColor: colorScheme.background,
appBar: AppBar(
backgroundColor: Colors.transparent,
elevation: 0,
leading: IconButton(
icon: Icon(Icons.arrow_back, color: colorScheme.onSurface),
onPressed: () => Navigator.of(context).pop(),
),
title: Text(
'资金划转',
style: GoogleFonts.spaceGrotesk(
fontSize: 18,
fontWeight: FontWeight.bold,
color: colorScheme.onSurface,
),
),
centerTitle: true,
),
body: Consumer<AssetProvider>(
builder: (context, provider, _) {
return SingleChildScrollView(
padding: AppSpacing.pagePadding,
child: Column(
children: [
// 第一个卡片(根据方向显示"从"或"到"
AnimatedSwitcher(
duration: const Duration(milliseconds: 300),
transitionBuilder: (child, animation) {
return FadeTransition(
opacity: animation,
child: SlideTransition(
position: Tween<Offset>(
begin: Offset(0, _direction == 1 ? -0.1 : 0.1),
end: Offset.zero,
).animate(CurvedAnimation(
parent: animation,
curve: Curves.easeOut,
)),
child: child,
),
);
},
child: Container(
key: ValueKey('card1-$_direction'),
child: _direction == 1
? _buildAccountCard(
label: '',
accountName: _fromLabel,
balance: _fromBalance,
isDark: isDark,
colorScheme: colorScheme,
)
: _buildAccountCard(
label: '',
accountName: _toLabel,
balance: _toBalance,
isDark: isDark,
colorScheme: colorScheme,
),
),
),
// 方向切换按钮(固定在中间)
GestureDetector(
onTap: _toggleDirection,
child: Container(
margin: EdgeInsets.symmetric(vertical: AppSpacing.sm),
padding: EdgeInsets.all(AppSpacing.sm + AppSpacing.xs),
decoration: BoxDecoration(
color: colorScheme.primary,
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: colorScheme.primary.withOpacity(0.3),
blurRadius: 8,
),
],
),
child: Icon(
Icons.swap_vert,
color: colorScheme.onPrimary,
size: 22,
),
),
),
// 第二个卡片(根据方向显示"到"或"从"
AnimatedSwitcher(
duration: const Duration(milliseconds: 300),
transitionBuilder: (child, animation) {
return FadeTransition(
opacity: animation,
child: SlideTransition(
position: Tween<Offset>(
begin: Offset(0, _direction == 1 ? 0.1 : -0.1),
end: Offset.zero,
).animate(CurvedAnimation(
parent: animation,
curve: Curves.easeOut,
)),
child: child,
),
);
},
child: Container(
key: ValueKey('card2-$_direction'),
child: _direction == 1
? _buildAccountCard(
label: '',
accountName: _toLabel,
balance: _toBalance,
isDark: isDark,
colorScheme: colorScheme,
)
: _buildAccountCard(
label: '',
accountName: _fromLabel,
balance: _fromBalance,
isDark: isDark,
colorScheme: colorScheme,
),
),
),
// 金额输入卡片
_buildAmountSection(colorScheme, isDark),
SizedBox(height: AppSpacing.lg),
// 确认按钮
SizedBox(
width: double.infinity,
child: NeonButton(
text: _isLoading ? '处理中...' : '确认划转',
icon: _isLoading ? null : LucideIcons.arrowRightLeft,
type: NeonButtonType.primary,
onPressed: _isLoading ? null : _doTransfer,
height: 52,
showGlow: true,
),
),
SizedBox(height: AppSpacing.md),
// 划转说明
_buildTips(colorScheme),
],
),
);
},
),
);
}
/// 账户卡片
Widget _buildAccountCard({
required String label,
required String accountName,
required String balance,
required bool isDark,
required ColorScheme colorScheme,
}) {
return Container(
width: double.infinity,
padding: EdgeInsets.all(AppSpacing.md),
decoration: BoxDecoration(
color: isDark ? colorScheme.surfaceContainer : colorScheme.surfaceContainerHigh,
borderRadius: BorderRadius.circular(AppRadius.lg),
border: Border.all(
color: colorScheme.outlineVariant.withOpacity(0.15),
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Container(
padding: EdgeInsets.symmetric(horizontal: AppSpacing.sm, vertical: AppSpacing.xs),
decoration: BoxDecoration(
color: colorScheme.primary.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppRadius.sm),
),
child: Text(
label,
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: colorScheme.primary,
),
),
),
SizedBox(width: AppSpacing.sm),
Text(
accountName,
style: GoogleFonts.spaceGrotesk(
fontSize: 16,
fontWeight: FontWeight.w600,
color: colorScheme.onSurface,
),
),
],
),
SizedBox(height: AppSpacing.sm),
Row(
children: [
Text(
'可用余额',
style: TextStyle(
fontSize: 12,
color: colorScheme.onSurfaceVariant,
),
),
SizedBox(width: AppSpacing.xs),
Text(
'$balance USDT',
style: GoogleFonts.spaceGrotesk(
fontSize: 14,
fontWeight: FontWeight.bold,
color: colorScheme.onSurface,
),
),
],
),
],
),
);
}
/// 金额输入区域
Widget _buildAmountSection(ColorScheme colorScheme, bool isDark) {
return Container(
width: double.infinity,
padding: EdgeInsets.all(AppSpacing.md),
decoration: BoxDecoration(
color: isDark ? colorScheme.surfaceContainer : colorScheme.surfaceContainerHigh,
borderRadius: BorderRadius.circular(AppRadius.lg),
border: Border.all(
color: colorScheme.outlineVariant.withOpacity(0.15),
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'划转金额',
style: TextStyle(
fontSize: 13,
color: colorScheme.onSurfaceVariant,
),
),
SizedBox(height: AppSpacing.sm),
// 金额输入行
Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Expanded(
child: TextField(
controller: _amountController,
keyboardType: const TextInputType.numberWithOptions(decimal: true),
inputFormatters: [
FilteringTextInputFormatter.allow(RegExp(r'^\d*\.?\d{0,8}')),
],
style: GoogleFonts.spaceGrotesk(
fontSize: 32,
fontWeight: FontWeight.bold,
color: colorScheme.onSurface,
),
decoration: InputDecoration(
hintText: '0.00',
hintStyle: GoogleFonts.spaceGrotesk(
fontSize: 32,
fontWeight: FontWeight.bold,
color: colorScheme.onSurfaceVariant.withOpacity(0.3),
),
border: InputBorder.none,
contentPadding: EdgeInsets.zero,
isDense: true,
),
),
),
Padding(
padding: EdgeInsets.only(bottom: 4),
child: Text(
'USDT',
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w600,
color: colorScheme.onSurfaceVariant,
),
),
),
],
),
SizedBox(height: AppSpacing.sm),
// 快捷按钮行
Row(
children: [
Text(
'可用: ${_availableBalance}',
style: TextStyle(
fontSize: 12,
color: colorScheme.onSurfaceVariant,
),
),
Spacer(),
_buildQuickButton('25%', 0.25, colorScheme),
SizedBox(width: AppSpacing.xs),
_buildQuickButton('50%', 0.50, colorScheme),
SizedBox(width: AppSpacing.xs),
_buildQuickButton('75%', 0.75, colorScheme),
SizedBox(width: AppSpacing.xs),
_buildQuickButton('全部', 1.0, colorScheme),
],
),
if (_direction == 2) ...[
SizedBox(height: AppSpacing.sm),
Container(
padding: EdgeInsets.all(AppSpacing.sm),
decoration: BoxDecoration(
color: AppColorScheme.warning.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppRadius.sm),
),
child: Row(
children: [
Icon(
LucideIcons.triangleAlert,
size: 14,
color: AppColorScheme.warning,
),
SizedBox(width: AppSpacing.xs),
Expanded(
child: Text(
'仅支持 USDT 资产划转到资金账户',
style: TextStyle(
fontSize: 11,
color: AppColorScheme.warning,
),
),
),
],
),
),
],
],
),
);
}
/// 快捷百分比按钮
Widget _buildQuickButton(String label, double percent, ColorScheme colorScheme) {
return GestureDetector(
onTap: () => _setQuickAmount(percent),
child: Container(
padding: EdgeInsets.symmetric(horizontal: AppSpacing.sm, vertical: AppSpacing.xs),
decoration: BoxDecoration(
color: colorScheme.primary.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppRadius.sm),
),
child: Text(
label,
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w600,
color: colorScheme.primary,
),
),
),
);
}
/// 划转说明
Widget _buildTips(ColorScheme colorScheme) {
return Container(
padding: EdgeInsets.all(AppSpacing.md),
decoration: BoxDecoration(
color: colorScheme.surfaceContainerHighest,
borderRadius: BorderRadius.circular(AppRadius.md),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'划转说明',
style: GoogleFonts.spaceGrotesk(
fontSize: 12,
fontWeight: FontWeight.w600,
color: colorScheme.onSurfaceVariant,
),
),
SizedBox(height: AppSpacing.sm),
_buildTipItem('资金账户用于充提,交易账户用于买卖币种', colorScheme),
_buildTipItem('划转操作即时到账,不可撤销', colorScheme),
_buildTipItem('交易账户只有 USDT 可直接划转到资金账户', colorScheme),
_buildTipItem('其他币种需先卖出换成 USDT 后才能划转', colorScheme),
],
),
);
}
Widget _buildTipItem(String text, ColorScheme colorScheme) {
return Padding(
padding: EdgeInsets.only(bottom: AppSpacing.xs),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
width: 4,
height: 4,
margin: EdgeInsets.only(top: 6, right: AppSpacing.sm),
decoration: BoxDecoration(
color: colorScheme.onSurfaceVariant,
shape: BoxShape.circle,
),
),
Expanded(
child: Text(
text,
style: TextStyle(
fontSize: 11,
color: colorScheme.onSurfaceVariant,
),
),
),
],
),
);
}
}