489 lines
16 KiB
Dart
489 lines
16 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../api/health_api.dart';
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import '../../models/health.dart';
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import '../../providers/health_provider.dart';
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import '../../utils/toast.dart';
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import '../../widgets/state_views.dart';
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import 'widgets/weight_line_chart.dart';
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/// 体重页面：记体重 + 看折线图 + 看历史。
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///
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/// 顶部一个「记一下」输入区放着不动，下面依次是图表和历史 ——
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/// 这个页面最高频的动作就是「记一次」，它必须在第一屏、不用滚动就能点到。
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class WeightPage extends ConsumerStatefulWidget {
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const WeightPage({super.key});
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@override
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ConsumerState<WeightPage> createState() => _WeightPageState();
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}
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class _WeightPageState extends ConsumerState<WeightPage> {
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final _ctrl = TextEditingController();
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final _noteCtrl = TextEditingController();
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bool _saving = false;
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DateTime _date = DateTime.now();
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@override
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void initState() {
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super.initState();
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// 预填最近一次体重 —— 大部分时候体重变化很小，改一下比重新敲快
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Future.microtask(() async {
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try {
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final chart = await ref.read(healthApiProvider).weightChart();
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if (!mounted) return;
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final current = chart.currentWeight;
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if (current != null) {
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setState(() => _ctrl.text = _fmt(current));
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}
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} catch (_) {
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// 拿不到就留空手填
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}
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});
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}
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@override
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void dispose() {
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_ctrl.dispose();
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_noteCtrl.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final chartAsync = ref.watch(weightChartProvider);
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final goalAsync = ref.watch(weightGoalProvider);
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return Scaffold(
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backgroundColor: const Color(0xFFF7F4F1),
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appBar: AppBar(
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title: const Text('体重记录'),
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backgroundColor: const Color(0xFFF7F4F1),
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elevation: 0,
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scrolledUnderElevation: 0,
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foregroundColor: const Color(0xFF5D4037),
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),
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body: ListView(
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padding: const EdgeInsets.fromLTRB(14, 6, 14, 24),
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children: [
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_inputCard(),
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const SizedBox(height: 12),
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_chartCard(chartAsync, goalAsync.value),
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const SizedBox(height: 12),
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_historyCard(),
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],
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),
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);
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}
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// ---------------- 输入区 ----------------
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Widget _inputCard() {
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return Container(
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padding: const EdgeInsets.fromLTRB(16, 14, 16, 14),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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const Text('记录体重',
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style: TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w600,
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color: Color(0xFF5D4037),
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)),
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const Spacer(),
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// 日期默认今天，要补记以前的就点这里改
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GestureDetector(
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onTap: _pickDate,
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child: Row(
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children: [
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Text(
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_isToday(_date) ? '今天' : _dateText(_date),
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style: const TextStyle(
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fontSize: 12.5, color: Color(0xFFC8956E)),
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),
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const Icon(Icons.chevron_right,
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size: 16, color: Color(0xFFC8956E)),
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],
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),
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),
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],
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),
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const SizedBox(height: 6),
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Row(
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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Expanded(
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child: TextField(
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controller: _ctrl,
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keyboardType:
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const TextInputType.numberWithOptions(decimal: true),
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style: const TextStyle(
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fontSize: 34,
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fontWeight: FontWeight.bold,
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color: Color(0xFF5D4037),
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),
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decoration: const InputDecoration(
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hintText: '65.0',
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hintStyle: TextStyle(
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fontSize: 34,
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fontWeight: FontWeight.bold,
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color: Color(0xFFEFE5DC)),
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suffixText: 'kg',
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suffixStyle:
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TextStyle(fontSize: 14, color: Color(0xFF8D6E63)),
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isDense: true,
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contentPadding: EdgeInsets.symmetric(vertical: 8),
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border: InputBorder.none,
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),
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),
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),
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const SizedBox(width: 10),
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ElevatedButton(
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onPressed: _saving ? null : _save,
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFFC8956E),
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(
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horizontal: 22, vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(22),
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),
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),
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child: Text(_saving ? '…' : '记录'),
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),
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],
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),
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const SizedBox(height: 4),
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TextField(
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controller: _noteCtrl,
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style: const TextStyle(fontSize: 13, color: Color(0xFF5D4037)),
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decoration: const InputDecoration(
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hintText: '备注（可选），比如「早上空腹」',
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hintStyle: TextStyle(fontSize: 12.5, color: Color(0xFFBCAAA4)),
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isDense: true,
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contentPadding: EdgeInsets.symmetric(vertical: 6),
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border: InputBorder.none,
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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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Future<void> _pickDate() async {
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final picked = await showDatePicker(
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context: context,
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initialDate: _date,
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firstDate: DateTime(2020),
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lastDate: DateTime.now(),
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);
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if (picked != null) setState(() => _date = picked);
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}
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Future<void> _save() async {
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final weight = double.tryParse(_ctrl.text.trim());
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if (weight == null) {
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showToast(context, '请输入体重', error: true);
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return;
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}
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if (weight < 20 || weight > 300) {
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showToast(context, '体重需在 20 ~ 300 kg 之间', error: true);
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return;
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}
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setState(() => _saving = true);
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try {
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await ref.read(healthApiProvider).saveWeight(
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weight: weight,
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date: _date,
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note: _noteCtrl.text.trim().isEmpty
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? null
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: _noteCtrl.text.trim(),
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);
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if (!mounted) return;
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ref.invalidate(weightChartProvider);
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ref.invalidate(weightHistoryProvider);
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ref.invalidate(weightGoalProvider);
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FocusScope.of(context).unfocus();
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setState(() => _noteCtrl.clear());
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showToast(context, '已记录', icon: 'check');
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} catch (e) {
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if (!mounted) return;
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showToast(context, e.toString(), error: true);
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} finally {
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if (mounted) setState(() => _saving = false);
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}
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}
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// ---------------- 图表 ----------------
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Widget _chartCard(AsyncValue<WeightChart> chartAsync, WeightGoal? goal) {
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final chart = chartAsync.value;
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return Container(
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padding: const EdgeInsets.fromLTRB(10, 14, 16, 10),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Padding(
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padding: EdgeInsets.only(left: 6),
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child: Text('体重变化',
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style: TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w600,
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color: Color(0xFF5D4037),
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)),
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),
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if (chart != null && chart.hasData && goal != null && goal.hasGoal)
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Padding(
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padding: const EdgeInsets.only(left: 6, top: 6),
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child: Row(
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children: [
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_legend(const Color(0xFFC8956E), '实测'),
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const SizedBox(width: 14),
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_legend(const Color(0xFF4FA98A), '理想'),
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],
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),
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),
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const SizedBox(height: 8),
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if (chartAsync.isLoading)
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const SizedBox(height: 220, child: LoadingView(tip: ''))
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else if (chartAsync.hasError)
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SizedBox(
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height: 220,
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child: Center(
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child: ErrorView(
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message: '图表加载失败',
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onRetry: () => ref.invalidate(weightChartProvider),
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),
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),
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)
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else
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WeightLineChart(
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points: chart?.points ?? const [],
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idealCurve: goal?.idealCurve ?? const [],
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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 _legend(Color color, String label) {
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return Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 14,
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height: 2.5,
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decoration: BoxDecoration(
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color: color,
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borderRadius: BorderRadius.circular(2),
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),
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),
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const SizedBox(width: 5),
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Text(label,
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style: const TextStyle(
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fontSize: 11.5, color: Color(0xFF8D6E63))),
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],
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);
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}
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// ---------------- 历史 ----------------
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Widget _historyCard() {
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final async = ref.watch(weightHistoryProvider);
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return Container(
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padding: const EdgeInsets.fromLTRB(16, 14, 16, 8),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text('历史记录',
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style: TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w600,
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color: Color(0xFF5D4037),
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)),
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const SizedBox(height: 8),
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switch (async) {
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AsyncValue(hasError: true) => const Padding(
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padding: EdgeInsets.symmetric(vertical: 20),
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child: Text('加载失败',
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style: TextStyle(
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fontSize: 13, color: Color(0xFFBCAAA4))),
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),
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AsyncValue(:final value?) when value.isEmpty => const Padding(
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padding: EdgeInsets.symmetric(vertical: 20),
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child: Text('还没有记录',
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style: TextStyle(
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fontSize: 13, color: Color(0xFFBCAAA4))),
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),
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AsyncValue(:final value?) => _historyList(value),
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_ => const SizedBox(
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height: 60,
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child: Center(
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child: SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2, color: Color(0xFFC8956E)),
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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 _historyList(List<WeightRecordItem> items) {
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// 相邻两条的差值，让「掉了多少」一眼可见
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return Column(
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children: [
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for (var i = 0; i < items.length; i++)
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_historyRow(items, i),
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],
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);
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}
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Widget _historyRow(List<WeightRecordItem> items, int index) {
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final item = items[index];
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// 历史是倒序的，所以「上一次」是后面那条
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final previous = index + 1 < items.length ? items[index + 1] : null;
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final diff = previous == null ? null : item.weight - previous.weight;
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return Padding(
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padding: const EdgeInsets.only(bottom: 10),
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child: Row(
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children: [
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SizedBox(
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width: 74,
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child: Text(
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item.date == null ? '--' : _dateShort(item.date!),
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style: const TextStyle(
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fontSize: 12.5, color: Color(0xFF8D6E63)),
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),
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),
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Expanded(
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child: Row(
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children: [
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Text(
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'${_fmt(item.weight)} kg',
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style: const TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.w600,
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color: Color(0xFF5D4037),
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),
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),
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if (diff != null && diff.abs() >= 0.05) ...[
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const SizedBox(width: 8),
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Text(
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// 掉了给绿色，涨了给红 —— 这个模块的语境界定了颜色方向
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'${diff > 0 ? '+' : ''}${diff.toStringAsFixed(1)}',
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style: TextStyle(
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fontSize: 11.5,
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color: diff > 0
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? const Color(0xFFE0725C)
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: const Color(0xFF4FA98A),
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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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if (item.note.isNotEmpty)
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Flexible(
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child: Text(
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item.note,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(
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fontSize: 11.5, color: Color(0xFFBCAAA4)),
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),
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),
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IconButton(
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onPressed: () => _confirmDelete(item),
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icon: const Icon(Icons.close, size: 16),
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color: const Color(0xFFD7CCC8),
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visualDensity: VisualDensity.compact,
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(minWidth: 30, minHeight: 30),
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),
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],
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),
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);
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}
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Future<void> _confirmDelete(WeightRecordItem item) async {
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final ok = await showDialog<bool>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('删除这条记录？'),
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content: Text(
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'${item.date == null ? '' : _dateShort(item.date!)} · ${_fmt(item.weight)} kg'),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(ctx).pop(false),
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child: const Text('取消'),
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),
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TextButton(
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onPressed: () => Navigator.of(ctx).pop(true),
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style: TextButton.styleFrom(
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foregroundColor: const Color(0xFFE53935)),
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child: const Text('删除'),
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),
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],
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),
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);
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if (ok != true) return;
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try {
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await ref.read(healthApiProvider).deleteWeight(item.id);
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if (!mounted) return;
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ref.invalidate(weightHistoryProvider);
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ref.invalidate(weightChartProvider);
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ref.invalidate(weightGoalProvider);
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showToast(context, '已删除', icon: 'check');
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} catch (e) {
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if (!mounted) return;
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showToast(context, e.toString(), error: true);
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}
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}
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}
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// ==================================================================
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String _fmt(num value) {
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if (value == value.roundToDouble()) return value.round().toString();
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return value.toStringAsFixed(1);
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}
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bool _isToday(DateTime date) {
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final now = DateTime.now();
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return date.year == now.year &&
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date.month == now.month &&
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date.day == now.day;
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}
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String _dateText(DateTime date) =>
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'${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
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String _dateShort(DateTime date) =>
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'${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
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