Rohit Sangwan
895dcbe343
* Improve example app ui * Store favorite services in local storage * Use Text instead of SelectableText * Improve colors * Fix flutter analyzer issues * Revert example app minimum sdk requirement * Implement hasPermission api and improve ui flow * More ui improvements * Improve ScannedItem ui * Improve control ui * Change color theme to blue * Minor improvements wip * improve responsive ui and flow * More improvements * More improvements * Update Mac podfile * Fix home page scroll view * Update app and package name * Revert changelog * Resolve Ai comments --------- Co-authored-by: Foti Dim <foti@navideck.com>
380 lines
14 KiB
Dart
380 lines
14 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:universal_ble/universal_ble.dart';
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import 'package:universal_ble_example/home/widgets/ble_availability_icon.dart';
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import 'package:universal_ble_example/home/widgets/drawer.dart';
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import 'package:universal_ble_example/home/widgets/scanned_item_widget.dart';
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import 'package:universal_ble_example/peripheral_details/peripheral_detail_page.dart';
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class SystemDevicesScreen extends StatefulWidget {
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const SystemDevicesScreen({super.key});
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@override
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State<SystemDevicesScreen> createState() => _SystemDevicesScreenState();
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}
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class _SystemDevicesScreenState extends State<SystemDevicesScreen> {
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List<BleDevice> _systemDevices = [];
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bool _isLoading = false;
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AvailabilityState? bleAvailabilityState;
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List<String> withServices = [];
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final Map<String, bool> _isExpanded = {};
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final TextEditingController _servicesController = TextEditingController();
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void _parseServices() {
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setState(() {
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withServices = [];
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if (_servicesController.text.isNotEmpty) {
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final services = _servicesController.text
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.split(',')
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.map((s) => s.trim())
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.where((s) => s.isNotEmpty)
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.toList();
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for (String service in services) {
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try {
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withServices.add(BleUuidParser.string(service));
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} catch (e) {
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_showSnackbar("Invalid Service UUID: $service");
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return;
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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> _getSystemDevices() async {
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_parseServices();
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// For macOS and iOS, it is recommended to set a filter to get system devices
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if ((defaultTargetPlatform == TargetPlatform.macOS ||
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defaultTargetPlatform == TargetPlatform.iOS) &&
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withServices.isEmpty) {
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_showSnackbar(
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"No services filter was set for getting system connected devices. Using default services...",
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);
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}
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setState(() {
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_isLoading = true;
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});
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try {
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List<BleDevice> devices = await UniversalBle.getSystemDevices(
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withServices: withServices,
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);
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setState(() {
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_systemDevices = devices;
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_isLoading = false;
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});
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if (devices.isEmpty) {
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_showSnackbar("No System Connected Devices Found");
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}
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} catch (e) {
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setState(() {
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_isLoading = false;
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});
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_showSnackbar(e.toString());
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}
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}
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void _showSnackbar(String message) {
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ScaffoldMessenger.of(context)
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.showSnackBar(SnackBar(content: Text(message)));
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}
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bool get _isBluetoothAvailable =>
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bleAvailabilityState == AvailabilityState.poweredOn;
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@override
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void setState(VoidCallback fn) {
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if (mounted) super.setState(fn);
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}
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@override
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void dispose() {
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_servicesController.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 theme = Theme.of(context);
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final colorScheme = theme.colorScheme;
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return Scaffold(
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backgroundColor: colorScheme.surface,
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drawer: const AppDrawer(),
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appBar: AppBar(
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title: Row(
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children: [
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BleAvailabilityIcon(onAvailabilityStateChanged: (state) {
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setState(() => bleAvailabilityState = state);
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}),
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const SizedBox(width: 12),
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Expanded(
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child: const Text(
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'System Devices',
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style: TextStyle(
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fontWeight: FontWeight.bold,
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letterSpacing: 0.5,
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),
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),
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),
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],
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),
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elevation: 0,
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backgroundColor: colorScheme.surface,
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actions: [
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IconButton(
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icon: Icon(
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Icons.refresh,
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color: colorScheme.primary,
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),
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tooltip: 'Refresh',
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onPressed: _isBluetoothAvailable ? _getSystemDevices : null,
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),
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],
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),
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body: Column(
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children: [
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// Services input text box
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Padding(
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padding: const EdgeInsets.all(16),
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child: Card(
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elevation: 2,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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child: Padding(
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padding: const EdgeInsets.all(16),
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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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Icon(
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Icons.apps,
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color: colorScheme.primary,
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size: 20,
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),
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const SizedBox(width: 8),
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Text(
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'Service UUIDs (Optional)',
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style: TextStyle(
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fontWeight: FontWeight.bold,
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fontSize: 16,
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color: colorScheme.onSurface,
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),
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),
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],
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),
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const SizedBox(height: 8),
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Text(
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'Enter service UUIDs separated by commas. Leave empty to use default services.\nMandatory on Apple platforms.',
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style: TextStyle(
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fontSize: 12,
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color: colorScheme.onSurface.withValues(alpha: 0.7),
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),
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),
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const SizedBox(height: 12),
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TextField(
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controller: _servicesController,
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maxLines: 8,
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minLines: 4,
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style: const TextStyle(
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fontFamily: 'monospace',
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fontSize: 12,
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),
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decoration: InputDecoration(
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hintText:
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'eg: 0000180f-0000-1000-8000-00805f9b34fb, 0000180a-0000-1000-8000-00805f9b34fb',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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),
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filled: true,
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fillColor: colorScheme.surfaceContainerHighest,
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contentPadding: const EdgeInsets.all(12),
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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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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: SizedBox(
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width: double.infinity,
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child: ElevatedButton.icon(
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onPressed: _isBluetoothAvailable && !_isLoading
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? _getSystemDevices
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: null,
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icon: _isLoading
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? 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,
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valueColor: AlwaysStoppedAnimation<Color>(
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colorScheme.onPrimary,
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),
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),
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)
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: const Icon(Icons.search),
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label: Text(_isLoading ? 'Loading...' : 'Get System Devices'),
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style: ElevatedButton.styleFrom(
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backgroundColor: colorScheme.primary,
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foregroundColor: colorScheme.onPrimary,
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padding: const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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elevation: 2,
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),
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),
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),
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),
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if (_systemDevices.isNotEmpty)
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: Row(
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children: [
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Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 6,
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),
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decoration: BoxDecoration(
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color: colorScheme.primaryContainer,
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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'${_systemDevices.length} device${_systemDevices.length == 1 ? '' : 's'}',
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style: TextStyle(
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color: colorScheme.onPrimaryContainer,
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fontSize: 12,
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fontWeight: FontWeight.w600,
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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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const Divider(),
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Expanded(
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child: !_isBluetoothAvailable
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? Center(
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child: Padding(
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padding: const EdgeInsets.all(24.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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padding: const EdgeInsets.all(32),
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decoration: BoxDecoration(
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color: colorScheme.errorContainer.withValues(
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alpha: 0.3,
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),
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shape: BoxShape.circle,
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),
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child: Icon(
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Icons.bluetooth_disabled,
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size: 80,
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color: colorScheme.error,
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),
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),
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const SizedBox(height: 32),
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Text(
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'Bluetooth is Turned Off',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: colorScheme.onSurface,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 16),
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Text(
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'Please turn on Bluetooth to get system devices',
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style: TextStyle(
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fontSize: 16,
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color: colorScheme.onSurface.withValues(
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alpha: 0.7,
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),
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),
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textAlign: TextAlign.center,
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),
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],
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),
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),
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)
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: _systemDevices.isEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.devices_outlined,
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size: 64,
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color:
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colorScheme.onSurface.withValues(alpha: 0.3),
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),
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const SizedBox(height: 16),
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Text(
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'No system devices found',
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style: TextStyle(
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color: colorScheme.onSurface
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.withValues(alpha: 0.6),
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fontSize: 16,
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),
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),
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const SizedBox(height: 8),
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Text(
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'Click "Get System Devices" to refresh',
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style: TextStyle(
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color: colorScheme.onSurface
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.withValues(alpha: 0.5),
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fontSize: 14,
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),
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),
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],
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),
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)
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: ListView.separated(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 8,
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),
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itemCount: _systemDevices.length,
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separatorBuilder: (context, index) =>
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const SizedBox(height: 8),
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itemBuilder: (context, index) {
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BleDevice device = _systemDevices[index];
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return ScannedItemWidget(
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bleDevice: device,
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isExpanded: _isExpanded[device.deviceId] ?? false,
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onExpand: (isExpanded) {
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setState(() {
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_isExpanded[device.deviceId] = isExpanded;
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});
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},
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onTap: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) => PeripheralDetailPage(device),
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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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),
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);
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}
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}
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