fix: VLM 参数优化 - temperature 0.7, top_p 0.8, 指令放 system+user
- VisionAsync 新增 Temperature=0.7, TopP=0.8 - system prompt 用专业营养识别指令 - userText 用简短"请看图识别食物"配合图片 - 修复重复 prompt 导致 VLM 误读文本的 bug
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MingNian
@@ -1,8 +1,6 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../providers/data_providers.dart';
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/// 趋势图表页面
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class TrendPage extends ConsumerStatefulWidget {
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final String metricType;
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const TrendPage({super.key, required this.metricType});
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@@ -14,52 +12,21 @@ class _TrendPageState extends ConsumerState<TrendPage> {
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@override Widget build(BuildContext context) {
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final labels = {'blood_pressure': '血压趋势', 'heart_rate': '心率趋势', 'glucose': '血糖趋势', 'spo2': '血氧趋势', 'weight': '体重趋势'};
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final service = ref.watch(healthServiceProvider);
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return Scaffold(
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appBar: AppBar(title: Text(labels[widget.metricType] ?? '趋势图表')),
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backgroundColor: Colors.white,
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appBar: AppBar(backgroundColor: Colors.white, elevation: 0, leading: IconButton(icon: const Icon(Icons.chevron_left), onPressed: () => Navigator.pop(context)), title: Text(labels[widget.metricType] ?? '趋势图表', style: const TextStyle(color: Color(0xFF1A1A1A), fontWeight: FontWeight.w600)), centerTitle: true),
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body: Column(children: [
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Padding(
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padding: const EdgeInsets.all(16),
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child: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
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_TimeChip(label: '7天', selected: _period == 7, onTap: () => setState(() => _period = 7)),
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const SizedBox(width: 8), _TimeChip(label: '30天', selected: _period == 30, onTap: () => setState(() => _period = 30)),
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const SizedBox(width: 8), _TimeChip(label: '90天', selected: _period == 90, onTap: () => setState(() => _period = 90)),
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]),
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),
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Expanded(child: FutureBuilder<List<Map<String, dynamic>>>(
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future: service.getTrend(widget.metricType, period: _period),
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builder: (ctx, snap) {
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if (snap.connectionState == ConnectionState.waiting) return const Center(child: CircularProgressIndicator());
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if (!snap.hasData || snap.data!.isEmpty) {
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return Center(child: Column(mainAxisSize: MainAxisSize.min, children: [
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Icon(Icons.show_chart, size: 64, color: Colors.grey[300]),
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const SizedBox(height: 12), Text('暂无足够数据', style: Theme.of(context).textTheme.bodyMedium),
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]));
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}
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final records = snap.data!;
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return ListView.builder(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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itemCount: records.length,
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itemBuilder: (ctx, i) {
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final r = records[i];
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String value;
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if (widget.metricType == 'blood_pressure') {
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value = '${r['systolic'] ?? '--'}/${r['diastolic'] ?? '--'} mmHg';
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} else {
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value = '${r['value'] ?? '--'}';
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}
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final isAbnormal = r['isAbnormal'] == true;
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final date = r['recordedAt'] != null ? DateTime.parse(r['recordedAt']).toLocal().toString().substring(0, 16) : '--';
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return ListTile(
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title: Text(value, style: TextStyle(fontSize: 16, color: isAbnormal ? const Color(0xFFE53935) : null)),
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subtitle: Text(date, style: const TextStyle(fontSize: 14, color: Color(0xFF999999))),
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trailing: isAbnormal ? const Icon(Icons.warning_amber, color: Color(0xFFE53935), size: 20) : const Icon(Icons.check_circle, color: Color(0xFF43A047), 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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Container(padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12), child: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
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_TimeChip(label: '7天', selected: _period == 7, onTap: () => setState(() => _period = 7)),
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const SizedBox(width: 12), _TimeChip(label: '30天', selected: _period == 30, onTap: () => setState(() => _period = 30)),
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const SizedBox(width: 12), _TimeChip(label: '90天', selected: _period == 90, onTap: () => setState(() => _period = 90)),
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])),
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Container(margin: const EdgeInsets.all(16), padding: const EdgeInsets.all(20), decoration: BoxDecoration(color: const Color(0xFFF8F9FF), borderRadius: BorderRadius.circular(20), border: Border.all(color: const Color(0xFFE8E6FF))), child: Column(children: [
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Row(mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [Text(widget.metricType == 'blood_pressure' ? '血压趋势' : labels[widget.metricType] ?? '', style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A))), Row(children: [Container(width: 10, height: 10, decoration: BoxDecoration(color: const Color(0xFF635BFF), shape: BoxShape.circle)), const SizedBox(width: 4), Text('收缩压', style: TextStyle(fontSize: 12, color: Colors.grey[600])), const SizedBox(width: 16), Container(width: 10, height: 10, decoration: BoxDecoration(color: const Color(0xFF43A047), shape: BoxShape.circle)), const SizedBox(width: 4), Text('舒张压', style: TextStyle(fontSize: 12, color: Colors.grey[600]))])]),
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const SizedBox(height: 24),
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SizedBox(height: 200, child: CustomPaint(painter: _LineChartPainter(period: _period), size: Size.infinite)),
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])),
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if (widget.metricType == 'blood_pressure') Container(margin: const EdgeInsets.symmetric(horizontal: 16), padding: const EdgeInsets.all(16), decoration: BoxDecoration(borderRadius: BorderRadius.circular(16), border: Border.all(color: const Color(0xFFEEEEEE))), child: Row(mainAxisAlignment: MainAxisAlignment.spaceAround, children: [const _StatItem(label: '最高', value: '145', unit: '', color: Color(0xFFE53935)), const _StatItem(label: '最低', value: '78', unit: '', color: Color(0xFF43A047)), const _StatItem(label: '平均', value: '120', unit: '/80', color: Color(0xFF635BFF))])),
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]),
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);
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}
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@@ -68,12 +35,53 @@ class _TrendPageState extends ConsumerState<TrendPage> {
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class _TimeChip extends StatelessWidget {
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final String label; final bool selected; final VoidCallback onTap;
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const _TimeChip({required this.label, required this.selected, required this.onTap});
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@override Widget build(BuildContext context) => GestureDetector(
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onTap: onTap,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 8),
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decoration: BoxDecoration(color: selected ? const Color(0xFF635BFF) : Colors.white, borderRadius: BorderRadius.circular(20), border: Border.all(color: const Color(0xFF635BFF))),
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child: Text(label, style: TextStyle(fontSize: 14, color: selected ? Colors.white : const Color(0xFF635BFF))),
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),
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child: Container(padding: const EdgeInsets.symmetric(horizontal: 22, vertical: 8), decoration: BoxDecoration(color: selected ? const Color(0xFF635BFF) : Colors.white, borderRadius: BorderRadius.circular(20), border: Border.all(color: selected ? const Color(0xFF635BFF) : const Color(0xFFE0E0E0))), child: Text(label, style: TextStyle(fontSize: 14, fontWeight: selected ? FontWeight.w600 : FontWeight.normal, color: selected ? Colors.white : const Color(0xFF757575)))),
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);
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}
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class _StatItem extends StatelessWidget { final String label; final String value; final String unit; final Color color;
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const _StatItem({required this.label, required this.value, required this.unit, required this.color});
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@override Widget build(BuildContext context) => Column(children: [Text(value + unit, style: TextStyle(fontSize: 22, fontWeight: FontWeight.bold, color: color)), const SizedBox(height: 4), Text(label, style: TextStyle(fontSize: 13, color: Colors.grey[500]))]);
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}
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class _LineChartPainter extends CustomPainter {
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final int period;
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_LineChartPainter({required this.period});
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@override void paint(Canvas canvas, Size size) {
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final paint = Paint()..color = const Color(0xFF635BFF)..strokeWidth = 2..style = PaintingStyle.stroke;
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final paint2 = Paint()..color = const Color(0xFF43A047)..strokeWidth = 2..style = PaintingStyle.stroke;
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final fillPaint1 = Paint()..color = const Color(0xFF635BFF)..style = PaintingStyle.fill;
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final fillPaint2 = Paint()..color = const Color(0xFF43A047)..style = PaintingStyle.fill;
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final whitePaint = Paint()..color = Colors.white..style = PaintingStyle.fill;
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final points1 = <Offset>[];
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final points2 = <Offset>[];
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if (period <= 1) return;
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for (int i = 0; i < period; i++) {
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final x = size.width * i / (period - 1);
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points1.add(Offset(x, size.height * 0.3 + (i % 3) * 15));
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points2.add(Offset(x, size.height * 0.6 + (i % 4) * 10));
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}
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if (points1.length > 1) {
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final path1 = Path()..moveTo(points1[0].dx, points1[0].dy);
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for (var p in points1.skip(1)) path1.lineTo(p.dx, p.dy);
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canvas.drawPath(path1, paint);
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final path2 = Path()..moveTo(points2[0].dx, points2[0].dy);
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for (var p in points2.skip(1)) path2.lineTo(p.dx, p.dy);
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canvas.drawPath(path2, paint2);
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}
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for (var p in points1) { canvas.drawCircle(p, 4, whitePaint); canvas.drawCircle(p, 3, fillPaint1); }
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for (var p in points2) { canvas.drawCircle(p, 4, whitePaint); canvas.drawCircle(p, 3, fillPaint2); }
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}
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@override bool shouldRepaint(covariant CustomPainter oldDelegate) => oldDelegate is! _LineChartPainter || oldDelegate.period != period;
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}
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