serial_communication 0.0.1 
serial_communication: ^0.0.1 copied to clipboard
bjssoftsolutions.comAn Android Plugin for Serial Communication This Plugin wants to provide a simple API to connect, read and write data through theses serial ports. Listing the available serial ports on the device, incl [...]
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:serial_communication/serial_communication.dart';
void main() {
DartPluginRegistrant.ensureInitialized();
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return const MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Serial Communication',
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
const HomePage({Key? key}) : super(key: key);
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
String logData = "";
String receivedData = "";
String selectedPort = "Select Port";
int selectedBaudRate = SerialCommunication().baudRateList.first;
List<String>? serialList = [];
DataFormat format = DataFormat.ASCII;
final SerialCommunication serialCommunication = SerialCommunication();
@override
void initState() {
super.initState();
serialCommunication.startSerial().listen(_updateConnectionStatus);
getSerialList();
}
getSerialList() async {
serialList = await serialCommunication.getAvailablePorts();
}
@override
void dispose() {
serialCommunication.destroy();
super.dispose();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
resizeToAvoidBottomInset: false,
appBar: AppBar(
title: const Text('Serial Communication Example'),
),
body: SingleChildScrollView(
physics: const NeverScrollableScrollPhysics(),
child: Padding(
padding: const EdgeInsets.all(10.0),
child: Column(
children: [
setupButton(context),
const Divider(),
operations(),
const Divider(),
sendCommand(),
const Divider(),
response()
],
),
),
),
),
);
}
InkWell setupButton(BuildContext context) {
return InkWell(
onTap: () {
settingModalBottomSheet(context: context, list: serialList);
},
child: Material(
elevation: 4,
borderRadius: BorderRadius.circular(15),
color: const Color(0xFFF2F2F7),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Text(
"Tap to setup",
style: mediumStyle.apply(fontSizeFactor: 1),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
RichText(
text: TextSpan(
text: 'Device: \n',
style: mediumStyle.apply(color: Colors.blue),
children: <TextSpan>[
TextSpan(
text: selectedPort,
style: mediumStyle.apply(color: Colors.black54),
)
],
),
),
RichText(
text: TextSpan(
text: 'Baud Rate: \n',
style: mediumStyle.apply(color: Colors.blue),
children: <TextSpan>[
TextSpan(
text: "$selectedBaudRate",
style: mediumStyle.apply(color: Colors.black54),
)
],
),
),
],
),
),
RichText(
text: TextSpan(
text: 'Data Format: ',
style: mediumStyle.apply(color: Colors.blue),
children: <TextSpan>[
TextSpan(
text: format.name,
style: mediumStyle.apply(
color: Colors.black54,
),
)
],
),
),
],
),
),
),
);
}
Widget response() {
return Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Column(
children: [
const Text(
"Received Data",
style: mediumStyle,
),
const SizedBox(
height: 10,
),
button(
name: "Empty",
onPress: () {
serialCommunication.clearRead();
}),
],
),
Column(
children: [
const Text(
"Operation Log",
style: mediumStyle,
),
const SizedBox(
height: 10,
),
button(
name: "Empty",
onPress: () {
serialCommunication.clearLog();
}),
],
),
],
),
const SizedBox(
height: 10,
),
SizedBox(
height: MediaQuery.of(context).size.height * .4,
child: Row(
children: [
log(data: receivedData),
const VerticalDivider(
thickness: 2,
),
log(data: logData)
],
),
),
],
);
}
Widget log({required String data}) {
return Expanded(
child: Scrollbar(
child: SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
scrollDirection: Axis.vertical, //.horizontal
child: Text(
data,
style: const TextStyle(
fontSize: 16.0,
color: Colors.black,
),
),
),
),
);
}
Widget sendCommand() {
return Material(
elevation: 4,
color: const Color(0xFFF2F2F7),
borderRadius: BorderRadius.circular(12),
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 20.0, horizontal: 10),
child: Row(
children: [
const Expanded(
child: TextField(
decoration: InputDecoration(hintText: "Write send Command"),
),
),
button(
name: "Send",
onPress: () {
serialCommunication.sendCommand(message: "message");
})
],
),
),
);
}
Widget operations() {
return Material(
elevation: 4,
color: const Color(0xFFF2F2F7),
borderRadius: BorderRadius.circular(12),
child: Padding(
padding: const EdgeInsets.all(9.0),
child: Column(
children: [
const SizedBox(
height: 10,
),
Text("OPERATION", style: mediumStyle.apply(color: Colors.black54)),
const SizedBox(
height: 10,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
button(
name: "Open",
onPress: () {
serialCommunication.openPort(
dataFormat: format,
serialPort: selectedPort,
baudRate: selectedBaudRate);
}),
button(
name: "Close",
onPress: () {
serialCommunication.closePort();
})
],
),
],
),
),
);
}
void _updateConnectionStatus(SerialResponse? result) async {
setState(() {
logData = result!.logChannel ?? "";
receivedData = result.readChannel ?? "";
});
}
Widget button({required String name, required Function() onPress}) {
return SizedBox(
height: 40,
width: 130,
child: ElevatedButton(
onPressed: onPress,
child: Text(
name,
style: mediumStyle,
)),
);
}
settingModalBottomSheet({context, List<String>? list}) {
showModalBottomSheet(
isScrollControlled: true,
enableDrag: true,
backgroundColor: Colors.transparent,
context: context,
builder: (BuildContext bc) {
return StatefulBuilder(
builder: (context, state) {
return Container(
height: 400,
padding: const EdgeInsets.only(left: 20, right: 20),
decoration: const BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(26),
topRight: Radius.circular(26),
),
),
child: ListView(
physics: const ScrollPhysics(),
shrinkWrap: true,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
verticalDirection: VerticalDirection.down,
children: <Widget>[
Padding(
padding: const EdgeInsets.all(12.0),
child: Center(
child: Container(
height: 5,
width: 100,
decoration: BoxDecoration(
color: Colors.grey,
borderRadius: BorderRadius.circular(90),
),
)),
),
const Divider(),
listTile(
widget: DropdownButtonHideUnderline(
child: DropdownButton<String>(
isExpanded: true,
borderRadius: BorderRadius.circular(10),
hint: Text(
selectedPort,
style: mediumStyle.apply(
fontSizeFactor: 0.9),
),
items: serialList!.map((String? value) {
return DropdownMenuItem<String>(
value: value,
child:
Text(value!, style: mediumStyle),
);
}).toList(),
onChanged: (p0) {
updateSelectPort(state, p0!);
},
),
),
title: "Serial Port:"),
listTile(
widget: DropdownButtonHideUnderline(
child: DropdownButton<int>(
isExpanded: true,
borderRadius: BorderRadius.circular(10),
hint: Text(
selectedBaudRate.toString(),
style: mediumStyle.apply(
fontSizeFactor: 0.9),
),
menuMaxHeight: 400.0,
items: serialCommunication.baudRateList
.map((int? value) {
return DropdownMenuItem<int>(
value: value,
child: Text(value.toString(),
style: mediumStyle),
);
}).toList(),
onChanged: (p0) {
updateSelectBaudRate(state, p0!);
},
),
),
title: 'Select the BaudRate:'),
listTile(
widget: Row(
children: [
Expanded(
child: CheckboxListTile(
title: const Text(
"ASCII",
),
value: format == DataFormat.ASCII
? true
: false,
onChanged: (newValue) {
updateDataFormat(
state, DataFormat.ASCII);
},
controlAffinity:
ListTileControlAffinity.leading,
),
),
Expanded(
child: CheckboxListTile(
title: const Text(
"HEX String",
),
value: format == DataFormat.HEX_STRING
? true
: false,
onChanged: (newValue) {
updateDataFormat(
state, DataFormat.HEX_STRING);
},
controlAffinity:
ListTileControlAffinity.leading,
),
),
],
),
title: "Data Format",
),
])
]));
},
);
});
}
Future<void> updateSelectPort(StateSetter updateState, String value) async {
updateState(() {
setState(() {
selectedPort = value;
});
});
}
Future<void> updateDataFormat(
StateSetter updateState, DataFormat value) async {
updateState(() {
setState(() {
format = value;
});
});
}
Future<void> updateSelectBaudRate(StateSetter updateState, int value) async {
updateState(() {
setState(() {
selectedBaudRate = value;
});
});
}
Widget listTile({required Widget widget, required String title}) {
return Padding(
padding: const EdgeInsets.all(12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
title,
textAlign: TextAlign.left,
style: mediumStyle,
),
const SizedBox(
height: 10,
),
Container(
decoration: BoxDecoration(
color: Colors.white,
border: Border.all(
color: Colors.black38,
),
borderRadius: BorderRadius.circular(10.0),
),
padding: const EdgeInsets.only(
left: 8.0,
),
child: widget),
],
),
);
}
}
const mediumStyle = TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
);Metadata
13
likes
150
pub points
78%
popularity
Publisher
Metadata
An Android Plugin for Serial Communication This Plugin wants to provide a simple API to connect, read and write data through theses serial ports. Listing the available serial ports on the device, including USB to serial adapters Configuring serial ports (baud rate, stop bits, permission, ...) Providing standard InputStream and OutputStream
Repository (GitHub)
View/report issues
Documentation
License
BSD-3-Clause (license)
Dependencies
flutter, plugin_platform_interface
