d102205b18
- BLE: 修复Omron设备Indication模式连接(先订阅后配CCCD + forceIndications) + 直连重连
- BLE: 设备断连实时检测(connectionState流→Provider→UI)
- 修复: 血压数据上报后端枚举不匹配(Device→DeviceSync)导致500
- 新增: DELETE /api/health-records/{id} 后端接口
- 设备管理页: 白色主题重设计 + 直连重连 + 实时状态 + Toast通知
- 设备扫描页: 白色主题 + 扫描动画居中 + 已连接等待页面
- 健康记录: 左滑删除(Dismissible) + 同时清理_allRecords和_filtered
- 导航: 修复自定义路由栈下Navigator.pop黑屏bug
- 文档: 医生端合并App完整设计文档(已确认版)
346 lines
13 KiB
Dart
346 lines
13 KiB
Dart
import 'dart:async';
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import 'dart:io' show Platform;
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import 'package:flutter/material.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:permission_handler/permission_handler.dart';
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import '../../core/app_colors.dart';
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import '../../core/navigation_provider.dart';
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import '../../providers/auth_provider.dart';
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import '../../providers/omron_device_provider.dart';
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import '../../services/omron_ble_service.dart';
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class DeviceScanPage extends ConsumerStatefulWidget {
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const DeviceScanPage({super.key});
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@override ConsumerState<DeviceScanPage> createState() => _DeviceScanPageState();
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}
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class _DeviceScanPageState extends ConsumerState<DeviceScanPage>
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with SingleTickerProviderStateMixin {
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final _results = <ScanResult>[];
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bool _scanning = false;
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String? _connectingId;
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StreamSubscription? _scanSub;
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bool _connected = false;
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String _deviceName = '';
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bool _readingReceived = false;
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int? _systolic, _diastolic, _pulse;
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StreamSubscription? _readingSub;
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StreamSubscription? _bleConnSub;
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late AnimationController _pulseCtrl;
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late Animation<double> _pulseAnim;
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@override void initState() {
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super.initState();
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_pulseCtrl = AnimationController(vsync: this, duration: const Duration(milliseconds: 1200));
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_pulseAnim = Tween(begin: 0.8, end: 1.4).animate(CurvedAnimation(parent: _pulseCtrl, curve: Curves.easeInOut));
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_pulseCtrl.repeat(reverse: true);
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_scanSub = FlutterBluePlus.scanResults.listen((list) {
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if (!mounted) return;
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final bpList = list.where((r) => OmronBleService.isBpDevice(r)).toList();
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setState(() { _results.clear(); _results.addAll(bpList); });
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});
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_start();
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}
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@override void dispose() {
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_pulseCtrl.dispose();
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_scanSub?.cancel();
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_readingSub?.cancel();
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_bleConnSub?.cancel();
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FlutterBluePlus.stopScan();
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super.dispose();
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}
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Future<void> _start() async {
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setState(() { _scanning = true; _connected = false; });
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_results.clear();
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await [Permission.bluetoothScan, Permission.bluetoothConnect].request();
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if (Platform.isAndroid) {
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final locStatus = await Permission.locationWhenInUse.serviceStatus;
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if (locStatus != ServiceStatus.enabled && mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('请先打开GPS定位，否则无法扫描蓝牙'), backgroundColor: AppColors.warning),
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);
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}
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}
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final adapterState = await FlutterBluePlus.adapterState.first;
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if (adapterState != BluetoothAdapterState.on) {
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try { await FlutterBluePlus.turnOn(); } catch (_) {}
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}
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try { await FlutterBluePlus.stopScan(); } catch (_) {}
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await FlutterBluePlus.startScan(
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timeout: const Duration(seconds: 30),
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androidScanMode: AndroidScanMode.lowLatency,
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);
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Future.delayed(const Duration(seconds: 30), () {
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FlutterBluePlus.stopScan();
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if (mounted) setState(() => _scanning = false);
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});
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}
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Future<void> _connect(ScanResult r) async {
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setState(() => _connectingId = r.device.remoteId.toString());
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FlutterBluePlus.stopScan();
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_scanSub?.cancel();
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try {
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final ble = ref.read(omronBleServiceProvider);
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await ble.connect(r.device);
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final name = r.advertisementData.localName.isNotEmpty
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? r.advertisementData.localName
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: (r.device.platformName.isNotEmpty ? r.device.platformName : '血压计');
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await ref.read(omronDeviceProvider.notifier).bind(r.device.remoteId.toString(), name);
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_bleConnSub = r.device.connectionState.listen((s) {
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if (s == BluetoothConnectionState.disconnected && mounted) {
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_readingSub?.cancel();
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ref.read(omronBleServiceProvider).disconnect();
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if (_readingReceived) {
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popRoute(ref);
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} else {
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setState(() { _connected = false; });
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_start();
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}
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}
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});
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_readingSub = ble.readings.listen((reading) async {
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debugPrint('[PAGE] 收到: ${reading.systolic}/${reading.diastolic}');
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if (mounted) {
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setState(() {
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_readingReceived = true;
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_systolic = reading.systolic;
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_diastolic = reading.diastolic;
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_pulse = reading.pulse;
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});
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try {
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await ref.read(apiClientProvider).post('/api/health-records', data: reading.toHealthRecord());
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await ref.read(omronDeviceProvider.notifier).onReading(reading);
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} catch (e) { debugPrint('[PAGE] 上报失败: $e'); }
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Future.delayed(const Duration(milliseconds: 1500), () {
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if (mounted) popRoute(ref);
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});
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}
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});
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if (mounted) {
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setState(() {
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_connected = true;
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_deviceName = name;
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_connectingId = null;
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_readingReceived = false;
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});
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('连接失败: $e'), backgroundColor: AppColors.error),
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);
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_start();
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}
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}
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}
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@override Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: Colors.white,
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appBar: AppBar(
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backgroundColor: Colors.white,
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elevation: 0,
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title: Text(_connected ? _deviceName : '添加设备', style: const TextStyle(color: AppColors.textPrimary)),
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leading: IconButton(
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icon: const Icon(Icons.arrow_back, color: AppColors.textPrimary),
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onPressed: () {
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if (_connected) ref.read(omronBleServiceProvider).disconnect();
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popRoute(ref);
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},
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),
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),
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body: _connected ? _buildConnected() : _buildScan(),
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);
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}
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// ── 扫描视图 ──
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Widget _buildScan() => Column(children: [
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if (_scanning && _results.isEmpty) Expanded(child: _buildScanningCenter()),
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if (!_scanning && _results.isEmpty) Expanded(child: _buildScanningCenter()),
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if (_results.isNotEmpty)
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Expanded(
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child: ListView.builder(
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padding: const EdgeInsets.all(16),
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itemCount: _results.length,
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itemBuilder: (_, i) => _buildTile(_results[i]),
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),
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),
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if (!_scanning)
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Padding(
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padding: const EdgeInsets.all(16),
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child: SizedBox(width: double.infinity, child: OutlinedButton.icon(
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onPressed: _start,
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icon: const Icon(Icons.refresh),
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label: const Text('重新扫描'),
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style: OutlinedButton.styleFrom(
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foregroundColor: AppColors.primary,
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side: const BorderSide(color: Color(0xFFE5E7EB)),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
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padding: const EdgeInsets.symmetric(vertical: 14),
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),
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)),
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),
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]);
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Widget _buildScanningCenter() => Center(
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child: Column(mainAxisSize: MainAxisSize.min, children: [
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Stack(alignment: Alignment.center, children: [
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AnimatedBuilder(
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animation: _pulseAnim,
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builder: (_, child) => Container(
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width: 80 * _pulseAnim.value, height: 80 * _pulseAnim.value,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: AppColors.primary.withOpacity(0.08),
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),
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),
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),
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Container(
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width: 64, height: 64,
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decoration: BoxDecoration(
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color: const Color(0xFFF0F0FF), borderRadius: BorderRadius.circular(20),
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),
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child: const Icon(Icons.bluetooth_searching, size: 32, color: AppColors.primary),
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),
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]),
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const SizedBox(height: 20),
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Text(_scanning ? '正在搜索蓝牙设备...' : '未发现设备', style: const TextStyle(fontSize: 16, color: AppColors.textHint)),
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const SizedBox(height: 8),
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Text(_scanning ? '请确保血压计处于通信模式' : '点击下方按钮重新搜索', style: const TextStyle(fontSize: 13, color: Color(0xFFCCCCCC))),
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]),
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);
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// ── 已连接视图 ──
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Widget _buildConnected() => Center(
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child: Padding(
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padding: const EdgeInsets.all(32),
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child: Column(mainAxisSize: MainAxisSize.min, children: [
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AnimatedContainer(
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duration: const Duration(milliseconds: 500),
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width: 100, height: 100,
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decoration: BoxDecoration(
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color: _readingReceived ? const Color(0xFFD1FAE5) : const Color(0xFFF0F0FF),
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borderRadius: BorderRadius.circular(32),
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),
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child: Icon(
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_readingReceived ? Icons.check_rounded : Icons.bluetooth_connected,
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size: 48,
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color: _readingReceived ? const Color(0xFF10B981) : AppColors.primary,
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),
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),
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const SizedBox(height: 24),
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Text(_readingReceived ? '测量完成' : '设备已连接', style: const TextStyle(fontSize: 22, fontWeight: FontWeight.w700, color: AppColors.textPrimary)),
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const SizedBox(height: 8),
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if (_readingReceived) ...[
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Row(mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.end, children: [
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Text('$_systolic', style: const TextStyle(fontSize: 56, fontWeight: FontWeight.w800, color: AppColors.textPrimary, height: 1)),
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Padding(padding: const EdgeInsets.only(bottom: 10), child: Text('/', style: TextStyle(fontSize: 24, color: AppColors.textHint.withOpacity(0.5)))),
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Text('$_diastolic', style: const TextStyle(fontSize: 56, fontWeight: FontWeight.w800, color: AppColors.textPrimary, height: 1)),
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const SizedBox(width: 8),
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Padding(padding: const EdgeInsets.only(bottom: 12), child: Text('mmHg', style: TextStyle(fontSize: 15, color: AppColors.textHint))),
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]),
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if (_pulse != null)
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Padding(
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padding: const EdgeInsets.only(top: 8),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 6),
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decoration: BoxDecoration(color: const Color(0xFFEFF6FF), borderRadius: BorderRadius.circular(20)),
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child: Text('脉搏 $_pulse bpm', style: const TextStyle(fontSize: 15, fontWeight: FontWeight.w500, color: AppColors.primary)),
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),
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),
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const SizedBox(height: 16),
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const Text('数据已自动同步', style: TextStyle(fontSize: 14, color: AppColors.textHint)),
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const SizedBox(height: 8),
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const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2, color: AppColors.primary)),
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] else ...[
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const Text('请按下血压计的开始键进行测量', style: TextStyle(fontSize: 15, color: AppColors.textHint)),
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const SizedBox(height: 32),
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AnimatedBuilder(
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animation: _pulseAnim,
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builder: (_, __) => Container(
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width: 48, height: 48,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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border: Border.all(color: AppColors.primary.withOpacity(0.3), width: 2),
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),
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child: Center(
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child: Transform.scale(
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scale: _pulseAnim.value,
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child: Container(width: 12, height: 12, decoration: const BoxDecoration(shape: BoxShape.circle, 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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),
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);
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// ── 设备列表项 ──
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Widget _buildTile(ScanResult r) {
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final isConnecting = _connectingId == r.device.remoteId.toString();
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final name = r.advertisementData.localName.isNotEmpty
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? r.advertisementData.localName
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: (r.device.platformName.isNotEmpty ? r.device.platformName : '未知设备');
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return Container(
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margin: const EdgeInsets.only(bottom: 8),
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padding: const EdgeInsets.all(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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border: Border.all(color: const Color(0xFFEEEEEE)),
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),
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child: Row(children: [
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Container(
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width: 44, height: 44,
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decoration: BoxDecoration(color: const Color(0xFFF0F0FF), borderRadius: BorderRadius.circular(12)),
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child: const Icon(Icons.bluetooth, size: 22, color: AppColors.primary),
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),
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const SizedBox(width: 12),
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Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
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Text(name, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: AppColors.textPrimary)),
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const SizedBox(height: 2),
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Text('${r.device.remoteId} · 信号: ${_rssiLabel(r.rssi)}', style: const TextStyle(fontSize: 12, color: AppColors.textHint)),
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])),
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if (isConnecting)
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const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2))
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else
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GestureDetector(
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onTap: () => _connect(r),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
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decoration: BoxDecoration(color: AppColors.primary, borderRadius: BorderRadius.circular(12)),
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child: const Text('连接', style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: Colors.white)),
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),
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),
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]),
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);
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}
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String _rssiLabel(int r) {
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if (r > -55) return '强';
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if (r > -70) return '中';
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return '弱';
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}
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}
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