UGYUFYDYYF

[hnbyl9314-droid]

Use case

import 'dart:convert';
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:flutter_bluetooth_serial/flutter_bluetooth_serial.dart';

void main() => runApp(const GoldDetectorApp());

class GoldDetectorApp extends StatelessWidget {
  const GoldDetectorApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'كاشف الذهب الذكي',
      theme: ThemeData.dark().copyWith(
        primaryColor: const Color(0xFFFFD700),
        scaffoldBackgroundColor: const Color(0xFF121212),
      ),
      home: const MainScreen(),
    );
  }
}

class MainScreen extends StatefulWidget {
  const MainScreen({Key? key}) : super(key: key);

  @override
  _MainScreenState createState() => _MainScreenState();
}

class _MainScreenState extends State<MainScreen> {
  BluetoothState _bluetoothState = BluetoothState.UNKNOWN;
  BluetoothConnection? _connection;
  bool _isConnected = false;

  List<BluetoothDevice> _devicesList = [];
  BluetoothDevice? _selectedDevice;
  
  int _signalValue = 0;
  String _metalType = 'N'; // N=طبيعي, G=ذهب, S=فضة, E=خطأ
  String _statusText = "جاري مسح التربة الحالية...";
  Color _accentColor = Colors.blueAccent;

  @override
  void initState() {
    super.initState();
    _initBluetooth();
  }

  void _initBluetooth() async {
    _bluetoothState = await FlutterBluetoothSerial.instance.state;
    if (_bluetoothState == BluetoothState.STATE_OFF) {
      await FlutterBluetoothSerial.instance.requestEnable();
    }
    _getBondedDevices();
  }

  void _getBondedDevices() async {
    List<BluetoothDevice> devices = await FlutterBluetoothSerial.instance.getBondedDevices();
    setState(() {
      _devicesList = devices;
    });
  }

  void _connect() async {
    if (_selectedDevice == null) return;

    try {
      BluetoothConnection connection = await BluetoothConnection.toAddress(_selectedDevice!.address);
      setState(() {
        _connection = connection;
        _isConnected = true;
      });

      _connection!.input!.listen(_onDataReceived).onDone(() {
        setState(() {
          _isConnected = false;
        });
      });
    } catch (e) {
      print("خطأ في الاتصال: $e");
    }
  }

  void _onDataReceived(Uint8List data) {
    String dataString = utf8.decode(data).trim();
    List<String> parts = dataString.split(',');
    if (parts.length == 2) {
      setState(() {
        _signalValue = int.tryParse(parts[0]) ?? 0;
        _metalType = parts[1];

        if (_metalType == 'G') {
          _statusText = "🌟 ذهب صافي 🌟";
          _accentColor = const Color(0xFFFFD700); // لون ذهبي
        } else if (_metalType == 'S') {
          _statusText = "🥈 فضة / معادن 🥈";
          _accentColor = const Color(0xFFC0C0C0); // لون فضي
        } else if (_metalType == 'E') {
          _statusText = "❌ خطأ هندسي: افحص أسلاك القطعة الزرقاء!";
          _accentColor = Colors.red;
        } else {
          _statusText = "🔍 جاري مسح التربة...";
          _accentColor = Colors.blueAccent;
        }
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('نظام المراقبة والفرز الحية', style: TextStyle(fontWeight: FontWeight.bold)),
        centerTitle: true,
        backgroundColor: Colors.black,
      ),
      body: Padding(
        padding: const EdgeInsets.all(20.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: [
            // قسم اختيار وجهاز البلوتوث
            Container(
              padding: const EdgeInsets.symmetric(horizontal: 15, vertical: 5),
              decoration: BoxDecoration(
                color: Colors.grey[900],
                borderRadius: BorderRadius.circular(12),
              ),
              child: Row(
                children: [
                  Expanded(
                    child: DropdownButton<BluetoothDevice>(
                      isExpanded: true,
                      underline: const SizedBox(),
                      hint: const Text("اختر جهاز الذهب"),
                      value: _selectedDevice,
                      items: _devicesList.map((device) {
                        return DropdownMenuItem(
                          value: device,
                          child: Text(device.name ?? "جهاز غير مسمى"),
                        );
                      }).toList(),
                      onChanged: (device) {
                        setState(() => _selectedDevice = device);
                      },
                    ),
                  ),
                  const SizedBox(width: 10),
                  ElevatedButton(
                    onPressed: _isConnected ? null : _connect,
                    style: ElevatedButton.styleFrom(
                      backgroundColor: _isConnected ? Colors.green : Colors.amber,
                    ),
                    child: Text(_isConnected ? "متصل" : "اتصال"),
                  ),
                ],
              ),
            ),

            // العداد الدائري الذكي لقوة الإشارة
            Stack(
              alignment: Alignment.center,
              children: [
                SizedBox(
                  width: 240,
                  height: 240,
                  child: CircularProgressIndicator(
                    value: _signalValue / 4000, 
                    strokeWidth: 18,
                    valueColor: AlwaysStoppedAnimation<Color>(_accentColor),
                    backgroundColor: Colors.grey[800],
                  ),
                ),
                Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Text(
                      '$_signalValue',
                      style: const TextStyle(fontSize: 54, fontWeight: FontWeight.bold),
                    ),
                    const SizedBox(height: 5),
                    const Text('قوة الإشارة الحية', style: TextStyle(color: Colors.grey, fontSize: 16)),
                  ],
                ),
              ],
            ),

            // لوحة عرض النتيجة ونوع المعدن
            Container(
              width: double.infinity,
              padding: const EdgeInsets.all(25),
              decoration: BoxDecoration(
                color: Colors.grey[900],
                borderRadius: BorderRadius.circular(15),
                border: Border.all(color: _accentColor, width: 2),
              ),
              child: Column(
                children: [
                  const Text(
                    'نوع الهدف المكتشف تحت القرص',
                    style: TextStyle(color: Colors.grey, fontSize: 14),
                  ),
                  const SizedBox(height: 12),
                  Text(
                    _statusText,
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      fontSize: 24,
                      fontWeight: FontWeight.bold,
                      color: _accentColor,
                    ),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Idea

HUHIUH