144 lines
4.7 KiB
Dart
144 lines
4.7 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:ju_rc_app/lib/serial.dart';
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// ignore: must_be_immutable
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class ConnectionBar extends StatefulWidget {
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USerial serial = getSerial();
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ConnectionBar({super.key});
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@override
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// ignore: library_private_types_in_public_api
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_ConnectionBarState createState() => _ConnectionBarState();
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}
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class _ConnectionBarState extends State<ConnectionBar> {
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late Timer timer;
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String _status = "";
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List<UPort> _ports = [];
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StateSetter? sheetsetstate;
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UPort? connectedTo;
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_ConnectionBarState() {
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timer = Timer.periodic(const Duration(seconds: 1), (_) async {
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if (sheetsetstate == null) return;
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var ports = await widget.serial.getPorts();
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setState(() {
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_ports = ports;
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});
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});
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}
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@override
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void dispose() {
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timer.cancel();
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super.dispose();
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}
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@override
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void setState(VoidCallback fn) {
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super.setState(fn);
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try {
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if (sheetsetstate != null) (sheetsetstate!)(() {});
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} catch (_) {}
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}
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void showModal() async {
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if (connectedTo != null && connectedTo!.connected) {
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await widget.serial.disconnect();
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setState(() {
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connectedTo = null;
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});
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} else {
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var ports = await widget.serial.getPorts();
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setState(() {
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_ports = ports;
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_status = "";
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});
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// ignore: use_build_context_synchronously
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showModalBottomSheet(
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context: context,
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builder: (context) => StatefulBuilder(
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builder: (BuildContext context, StateSetter setStateM) {
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sheetsetstate = setStateM;
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return BottomSheet(
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enableDrag: false,
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builder: (context) => Column(children: [
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Padding(
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padding: const EdgeInsets.all(8),
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child: Column(children: [
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const Text("Devices",
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style: TextStyle(
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fontSize: 20.0,
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fontWeight: FontWeight.bold,
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)),
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Text(_status,
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style: const TextStyle(
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fontSize: 10.0,
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fontWeight: FontWeight.bold,
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))
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])),
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..._ports.map((port) => ListTile(
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leading: const Icon(Icons.usb),
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title: Text(port.productName),
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subtitle: Text(port.manufacturerName),
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trailing: ElevatedButton(
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child:
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Text(port.connected ? "Disconnect" : "Connect"),
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onPressed: () async {
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if (port.connected) {
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await widget.serial.disconnect();
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setState(() {
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connectedTo = null;
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_status = "Successfully disconnected!";
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});
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} else {
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if (await widget.serial.connect(port)) {
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setState(() {
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connectedTo = port;
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_status = "Successfully connected!";
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});
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} else {
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setState(() {
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_status = "Error while connecting!";
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});
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}
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}
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var ports = await widget.serial.getPorts();
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setState(() {
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_ports = ports;
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});
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},
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)))
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]),
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onClosing: () {
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sheetsetstate = null;
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},
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);
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}));
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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 ListTile(
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leading: const Icon(Icons.usb),
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title: Text(connectedTo != null && connectedTo!.connected
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? connectedTo!.productName
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: "Not connected"),
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subtitle: Text(connectedTo != null && connectedTo!.connected
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? connectedTo!.manufacturerName
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: "Click 'connect'"),
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trailing: ElevatedButton(
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onPressed: () {
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setState(() {
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showModal();
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});
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},
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child: Text(connectedTo != null && connectedTo!.connected
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? "Disconnect"
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: "Connect"),
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));
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}
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}
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