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368
lib/connectPage.dart
Normal file
368
lib/connectPage.dart
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import 'dart:async';
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import 'package:bluetooth_classic/bluetooth_classic.dart';
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import 'package:bluetooth_classic/models/device.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import 'package:provider/provider.dart';
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import 'package:xapk_installer/AppStateModel.dart';
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import 'package:xapk_installer/BluetoothUtils.dart';
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import 'package:xapk_installer/ConnectionScreenDialogs.dart';
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import 'package:xapk_installer/CustomBluetoothService.dart';
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import 'NoDeviceScreen.dart';
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class ConnectPage extends StatefulWidget {
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const ConnectPage({super.key});
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@override
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State<ConnectPage> createState() => _ConnectPageState();
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}
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class _ConnectPageState extends State<ConnectPage> {
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final _bluetoothClassicPlugin = Custombluetoothservice();
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//a bool to hide the no devices found screen when the user presses the scan button
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bool _hideNoDevicesScreen = false;
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bool _scanning = false;
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Icon _statusIcon = const Icon(Icons.restart_alt);
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int _deviceStatus = Device.disconnected;
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Device _connectedDevice = Device(name: 'Unknown', address: 'Unknown');
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StreamSubscription? deviceListen;
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StreamSubscription? deviceChangeListen;
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//Init
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@override
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void initState() {
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super.initState();
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_bluetoothClassicPlugin.initPermissions();
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_bluetoothClassicPlugin.onDeviceStatusChanged().listen((event) {
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setState(() {
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Provider.of<AppStateModel>(context, listen: false).setDeviceStatus(event);
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_deviceStatus = event;
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});
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});
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_bluetoothClassicPlugin.onDeviceDiscovered().listen(
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(event) {
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if (kDebugMode) {
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print('Device discovered: ${event.name}');
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}
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if (_scanning) {
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Provider.of<AppStateModel>(context, listen: false)
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.addDiscoveredDevice(event);
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//Sort list put Unknowns at the end
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Provider.of<AppStateModel>(context, listen: false)
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.discoveredDevices
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.sort((a, b) {
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if (a.name == null) {
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return 1;
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}
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if (b.name == null) {
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return -1;
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}
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return a.name!.compareTo(b.name!);
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});
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}
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},
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);
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}
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//Dispose
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@override
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void dispose() {
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super.dispose();
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// Provider.of<AppStateModel>(context, listen: false).listen?.cancel();
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}
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Future<void> _scan() async {
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if (_scanning) {
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await _bluetoothClassicPlugin.stopScan();
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if (kDebugMode) {
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print('Scanning stopped');
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}
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setState(() {
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_scanning = false;
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_statusIcon = const Icon(Icons.restart_alt);
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});
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} else {
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setState(() {
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Provider.of<AppStateModel>(context, listen: false).clearDiscoveredDevices();
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_hideNoDevicesScreen = true;
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_statusIcon = const Icon(Icons.cancel);
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});
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await _bluetoothClassicPlugin.startScan();
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if (kDebugMode) {
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print('Scanning started');
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}
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setState(() {
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_scanning = true;
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});
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}
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}
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Future<void> _stopScan() async {
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await _bluetoothClassicPlugin.stopScan();
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if (kDebugMode) {
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print('Scanning stopped');
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}
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await _bluetoothClassicPlugin.disconnect();
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setState(() {
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_scanning = false;
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_statusIcon = const Icon(Icons.restart_alt);
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});
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}
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Future<bool?> _showConnectConfirmDialog(
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BuildContext context, String deviceName, String deviceAddress) {
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return showDialog<bool?>(
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context: context,
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builder: (context) {
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return AlertDialog(
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title: const Text('Connect'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Text('Do you want to connect to this device?'),
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Container(height: 10),
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Text(deviceName,
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style: const TextStyle(
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fontWeight: FontWeight.bold,
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decoration: TextDecoration.underline,
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fontSize: 20)),
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Text(deviceAddress, style: const TextStyle(fontSize: 12)),
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],
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),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop(false);
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},
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child: const Text('No')),
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TextButton(
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onPressed: () {
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Navigator.of(context).pop(true);
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},
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child: const Text('Yes')),
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],
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);
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});
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}
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Future<void> _connect(Device device) async {
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final connect = await _showConnectConfirmDialog(
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context, device.name ?? 'Unknown', device.address);
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if (connect == null || !connect) {
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return;
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}
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bool connected = false;
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bool error = false;
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List<Device> alreadyConnectedDevices = [];
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try {
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alreadyConnectedDevices =
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await _bluetoothClassicPlugin.getPairedDevices();
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} catch (e) {
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error = true;
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}
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if(error){
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if (context.mounted) {
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if (kDebugMode) {
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print('Failed to get paired devices');
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}
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showDialog(
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context: context,
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builder: (context) {
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return AlertDialog(
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title: const Text('Failed to get paired devices'),
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content: const Text('Failed to get paired devices'),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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},
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child: const Text('OK'))
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],
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);
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});
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return;
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}
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}
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// //If the device is already connected, tell the user
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// if (alreadyConnectedDevices
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// .any((element) => element.address == device.address)) {
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// if (context.mounted) {
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// if (kDebugMode) {
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// print('Device already connected');
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// }
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// showAlreadyConnectedDialog(context);
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// return;
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// }
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// }
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if(_deviceStatus == Device.connected){
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if (context.mounted) {
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if (kDebugMode) {
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print('Device already connected');
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}
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showAlreadyConnectedDialog(context);
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return;
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}
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}
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try {
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connected = await _bluetoothClassicPlugin.connect(
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device.address, "00001101-0000-1000-8000-00805f9b34fb");
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} catch (e) {
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error = true;
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}
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if (error || !connected) {
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if (context.mounted) {
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if (kDebugMode) {
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print('Failed to connect');
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}
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}
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showDialog(
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context: context,
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builder: (context) {
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return AlertDialog(
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title: const Text('Failed to connect'),
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content: const Text('Failed to connect to the device'),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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},
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child: const Text('OK'))
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],
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);
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});
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return;
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}
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setState(() {
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_statusIcon = const Icon(Icons.restart_alt);
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_connectedDevice = device;
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});
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showDialog(
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context: context,
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builder: (context) {
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return AlertDialog(
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title: const Text('Connected'),
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content: const Text('You are now connected to the device'),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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},
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child: const Text('OK'))
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],
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);
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});
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await _bluetoothClassicPlugin.write("setPix 1 1 255 0 0\n"); //TODO: remove this
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}
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Future<void> _disconnect() async {
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await _bluetoothClassicPlugin.disconnect();
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setState(() {
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_statusIcon = const Icon(Icons.restart_alt);
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_connectedDevice = Device(name: 'Unknown', address: 'Unknown');
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});
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Connect Page'),
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leading: IconButton(
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icon: const Icon(Icons.arrow_back),
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onPressed: () {
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Navigator.of(context).pop();
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},
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),
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actions: [
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IconButton(
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icon: _statusIcon,
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onPressed: () {
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_scan();
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},
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),
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IconButton(
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onPressed: () {
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_stopScan();
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Provider.of<AppStateModel>(context, listen: false)
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.clearDiscoveredDevices();
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},
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icon: const Icon(Icons.star_purple500_outlined))
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],
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),
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body: !_hideNoDevicesScreen
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? NoDevicesScreen(onScanPressed: () {
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setState(() {
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_hideNoDevicesScreen = true;
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});
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_scan();
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})
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: Padding(
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padding: const EdgeInsets.all(4.0),
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child: Consumer<AppStateModel>(
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builder: (context, appstate, child) {
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final List<Device> _discoveredDevices =
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appstate.discoveredDevices;
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return ListView.builder(itemBuilder: (context, index) {
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if (index >= _discoveredDevices.length) {
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return null;
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}
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return ListTile(
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title: Text(_discoveredDevices[index].name ?? 'Unknown', style: TextStyle(
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fontWeight: _discoveredDevices[index].name == _connectedDevice.name ? FontWeight.bold : FontWeight.normal,
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color: _discoveredDevices[index].name == _connectedDevice.name ? Colors.green : Colors.white
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),),
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subtitle: Text(_discoveredDevices[index].address),
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leading: _discoveredDevices[index].name == null ? const Icon(Icons.question_mark) : const Icon(
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Icons.bluetooth,
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color: Colors.blueAccent,
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),
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style: ListTileStyle.list,
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onTap: () async {
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if(_discoveredDevices[index].name == _connectedDevice.name){
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await _disconnect();
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} else {
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await _connect(_discoveredDevices[index]);
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}
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},
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onLongPress: () async {
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// if (isAlreadyConnectedToDevice(_discoveredDevices[index],
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// await _bluetoothClassicPlugin.getPairedDevices())) {
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// _bluetoothClassicPlugin.disconnect();
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// }
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Fluttertoast.showToast(
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msg: Provider.of<AppStateModel>(context, listen: false).deviceStatus.toString(),
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toastLength: Toast.LENGTH_SHORT,
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gravity: ToastGravity.CENTER,
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timeInSecForIosWeb: 1,
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backgroundColor: Colors.red,
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textColor: Colors.white,
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fontSize: 16.0
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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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