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Eliminar lib/bluetooth_screen.dart

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240405
2026-03-06 11:17:31 +00:00
parent 9e024f7db0
commit 8eeed78084
1 changed files with 0 additions and 335 deletions
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lib/bluetooth_screen.dart
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@@ -1,335 +0,0 @@
import 'package:flutter/material.dart';
import 'package:flutter_blue_plus/flutter_blue_plus.dart';
import 'package:permission_handler/permission_handler.dart';
import 'dart:async';
import 'constants/app_colors.dart';
import 'constants/app_strings.dart';
class BluetoothScreen extends StatefulWidget {
const BluetoothScreen({super.key});
@override
State<BluetoothScreen> createState() => _BluetoothScreenState();
}
class _BluetoothScreenState extends State<BluetoothScreen> {
List<ScanResult> _scanResults = [];
bool _isScanning = false;
StreamSubscription? _scanResultsSubscription;
StreamSubscription? _isScanningSubscription;
@override
void initState() {
super.initState();
_scanResultsSubscription = FlutterBluePlus.scanResults.listen((results) {
if (mounted) {
List<ScanResult> sortedResults = List.from(results);
sortedResults.sort((a, b) {
bool aHasName = _hasRealName(a);
bool bHasName = _hasRealName(b);
if (aHasName && !bHasName) return -1;
if (!aHasName && bHasName) return 1;
return 0;
});
setState(() {
_scanResults = sortedResults;
});
}
});
_isScanningSubscription = FlutterBluePlus.isScanning.listen((state) {
if (mounted) {
setState(() {
_isScanning = state;
});
}
});
}
bool _hasRealName(ScanResult r) {
return r.advertisementData.advName.isNotEmpty || r.device.platformName.isNotEmpty;
}
@override
void dispose() {
_scanResultsSubscription?.cancel();
_isScanningSubscription?.cancel();
super.dispose();
}
Future<void> startScan() async {
Map<Permission, PermissionStatus> statuses = await [
Permission.bluetoothScan,
Permission.bluetoothConnect,
Permission.location,
].request();
if (statuses[Permission.bluetoothScan]!.isGranted &&
statuses[Permission.bluetoothConnect]!.isGranted) {
try {
_scanResults.clear();
await FlutterBluePlus.startScan(
timeout: const Duration(seconds: 15),
androidUsesFineLocation: true,
continuousUpdates: true,
);
Future.delayed(const Duration(seconds: 8), () {
if (mounted && _scanResults.isEmpty && _isScanning) {
_showSnackBar(AppStrings.noDevicesFound, AppColors.coral);
}
});
} catch (e) {
_showSnackBar("${AppStrings.scanError}$e", AppColors.error);
}
} else {
_showSnackBar(AppStrings.permissionsDenied, AppColors.coral);
}
}
Future<void> stopScan() async {
try {
await FlutterBluePlus.stopScan();
} catch (e) {
_showSnackBar("${AppStrings.stopScanError}$e", AppColors.error);
}
}
Future<void> connectToDevice(BluetoothDevice device) async {
try {
String name = device.platformName.isNotEmpty ? device.platformName : AppStrings.defaultDeviceName;
_showSnackBar("${AppStrings.connectingTo}$name...", AppColors.white.withValues(alpha: 0.7));
await device.connect();
_showSnackBar(AppStrings.connectedSuccess, AppColors.success);
} catch (e) {
_showSnackBar("${AppStrings.connectFail}$e", AppColors.error);
}
}
String _getDeviceName(ScanResult r) {
if (r.advertisementData.advName.isNotEmpty) {
return r.advertisementData.advName;
} else if (r.device.platformName.isNotEmpty) {
return r.device.platformName;
} else {
String id = r.device.remoteId.toString();
return "${AppStrings.deviceIdPrefix}${id.length > 5 ? id.substring(id.length - 5) : id}]";
}
}
void _showSnackBar(String message, Color color) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(message),
backgroundColor: color,
duration: const Duration(seconds: 3),
behavior: SnackBarBehavior.floating,
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text(AppStrings.bluetoothTitle, style: TextStyle(fontWeight: FontWeight.bold)),
centerTitle: true,
backgroundColor: AppColors.transparent,
elevation: 0,
foregroundColor: AppColors.white,
),
extendBodyBehindAppBar: true,
backgroundColor: AppColors.background,
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [
AppColors.coral.withValues(alpha: 0.1),
AppColors.background,
],
),
),
child: Column(
children: [
const SizedBox(height: 100),
Center(
child: Column(
children: [
Container(
padding: const EdgeInsets.all(25),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: _isScanning
? AppColors.coral.withValues(alpha: 0.1)
: AppColors.backgroundGrey.withValues(alpha: 0.3),
border: Border.all(
color: _isScanning ? AppColors.coral : AppColors.backgroundGrey,
width: 2,
),
),
child: Icon(
_isScanning ? Icons.bluetooth_searching : Icons.bluetooth,
size: 60,
color: _isScanning ? AppColors.coral : AppColors.white.withValues(alpha: 0.7),
),
),
const SizedBox(height: 30),
SizedBox(
width: 220,
height: 50,
child: ElevatedButton(
onPressed: _isScanning ? stopScan : startScan,
style: ElevatedButton.styleFrom(
backgroundColor: _isScanning ? AppColors.backgroundGrey : AppColors.white,
foregroundColor: _isScanning ? AppColors.white : AppColors.background,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(25),
),
elevation: 0,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
if (_isScanning)
const Padding(
padding: EdgeInsets.only(right: 10),
child: SizedBox(
width: 18,
height: 18,
child: CircularProgressIndicator(
strokeWidth: 2,
color: AppColors.white,
),
),
),
Text(
_isScanning ? AppStrings.stopSearch : AppStrings.startSearch,
style: const TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
letterSpacing: 1.2,
),
),
],
),
),
),
],
),
),
const SizedBox(height: 40),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Row(
children: [
Text(
_isScanning ? AppStrings.searching : AppStrings.nearbyDevices,
style: const TextStyle(
color: AppColors.white,
fontSize: 14,
fontWeight: FontWeight.w500,
),
),
const Spacer(),
if (_isScanning)
Container(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
decoration: BoxDecoration(
color: AppColors.coral.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(10),
),
child: const Text(
AppStrings.active,
style: TextStyle(color: AppColors.coral, fontSize: 10, fontWeight: FontWeight.bold),
),
),
],
),
),
const SizedBox(height: 15),
Expanded(
child: _scanResults.isEmpty && !_isScanning
? Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.bluetooth_disabled, size: 40, color: AppColors.white.withValues(alpha: 0.1)),
const SizedBox(height: 16),
Text(
AppStrings.startSearchInstruction,
style: TextStyle(color: AppColors.white.withValues(alpha: 0.3)),
),
],
),
)
: ListView.builder(
padding: const EdgeInsets.only(top: 0, bottom: 20),
itemCount: _scanResults.length,
itemBuilder: (context, index) {
final r = _scanResults[index];
final name = _getDeviceName(r);
final isUnknown = name.startsWith(AppStrings.deviceIdPrefix);
return Container(
margin: const EdgeInsets.symmetric(horizontal: 20, vertical: 6),
decoration: BoxDecoration(
color: AppColors.backgroundGrey.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(15),
),
child: ListTile(
contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
leading: CircleAvatar(
backgroundColor: AppColors.backgroundGrey.withValues(alpha: 0.3),
child: Icon(
isUnknown ? Icons.devices_other : Icons.bluetooth,
color: isUnknown ? AppColors.white.withValues(alpha: 0.4) : AppColors.white,
size: 20
),
),
title: Text(
name,
style: TextStyle(
color: isUnknown ? AppColors.white.withValues(alpha: 0.5) : AppColors.white,
fontWeight: FontWeight.w600,
fontSize: 15,
),
),
subtitle: Text(
r.device.remoteId.toString(),
style: TextStyle(color: AppColors.white.withValues(alpha: 0.3), fontSize: 11),
),
trailing: ElevatedButton(
onPressed: () => connectToDevice(r.device),
style: ElevatedButton.styleFrom(
backgroundColor: AppColors.coral,
foregroundColor: AppColors.white,
padding: const EdgeInsets.symmetric(horizontal: 12),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
elevation: 0,
),
child: const Text(AppStrings.connect, style: TextStyle(fontSize: 11, fontWeight: FontWeight.bold)),
),
),
);
},
),
),
],
),
),
);
}
}