Flutter设备控制插件lanio_la5r_controller的使用
Flutter设备控制插件lanio_la5r_controller的使用
lanio_la5r_controller 是一个用于控制 LA-5T2S 设备的 Flutter 插件。该插件允许开发者通过网络与设备进行通信,并实现对设备状态的读取和设置。
以下是一个完整的示例代码,展示如何使用 lanio_la5r_controller 插件来控制 LA-5T2S 设备:
import 'package:flutter/material.dart';
import 'package:lanio_la5r_controller/lanio_la5r_controller.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DeviceControlScreen(),
);
}
}
class DeviceControlScreen extends StatefulWidget {
@override
_DeviceControlScreenState createState() => _DeviceControlScreenState();
}
class _DeviceControlScreenState extends State<DeviceControlScreen> {
String deviceInfo = "等待获取设备信息";
List<bool> pinStates = [false, false, false, false, false];
Future<void> fetchDeviceInfo() async {
final lanio = Lanio(address: '192.168.10.91', port: 10003);
final info = await lanio.deviceInfo;
setState(() {
deviceInfo = info;
});
}
Future<void> setPinStates() async {
final lanio = Lanio(address: '192.168.10.91', port: 10003);
await lanio.setPins(pinStates.map((state) => state).toList());
final pins = await lanio.pins;
setState(() {
pinStates = pins;
});
}
@override
void initState() {
super.initState();
fetchDeviceInfo();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('LA-5T2S 控制器'),
),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Text(
'设备信息:',
style: TextStyle(fontSize: 18),
),
SizedBox(height: 10),
Text(deviceInfo),
SizedBox(height: 20),
ElevatedButton(
onPressed: () {
setPinStates();
},
child: Text('更新引脚状态'),
),
SizedBox(height: 20),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Text('DO1: ${pinStates[0]}'),
Text('DO2: ${pinStates[1]}'),
Text('DO3: ${pinStates[2]}'),
Text('DO4: ${pinStates[3]}'),
Text('DO5: ${pinStates[4]}'),
],
),
],
),
),
);
}
}
说明:
- 依赖引入:确保在
pubspec.yaml文件中添加了lanio_la5r_controller插件依赖。dependencies: lanio_la5r_controller: ^1.0.0
更多关于Flutter设备控制插件lanio_la5r_controller的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html
更多关于Flutter设备控制插件lanio_la5r_controller的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
lanio_la5r_controller 是一个用于控制 LANIO LA5R 设备的 Flutter 插件。以下是如何在 Flutter 项目中使用该插件的基本步骤:
1. 添加依赖
首先,你需要在 pubspec.yaml 文件中添加 lanio_la5r_controller 插件的依赖。
dependencies:
flutter:
sdk: flutter
lanio_la5r_controller: ^1.0.0 # 请使用最新版本
然后运行 flutter pub get 来获取依赖。
2. 导入插件
在你的 Dart 文件中导入 lanio_la5r_controller 插件:
import 'package:lanio_la5r_controller/lanio_la5r_controller.dart';
3. 初始化控制器
在使用插件之前,你需要初始化控制器:
LanioLa5rController _controller = LanioLa5rController();
4. 连接设备
使用 connect 方法来连接 LANIO LA5R 设备。你需要提供设备的 IP 地址和端口号。
Future<void> connectToDevice() async {
try {
await _controller.connect('192.168.1.100', 8080);
print('Connected to device');
} catch (e) {
print('Failed to connect: $e');
}
}
5. 发送控制命令
你可以使用 sendCommand 方法发送控制命令到设备。
Future<void> sendControlCommand() async {
try {
String command = 'TURN_ON_LED';
String response = await _controller.sendCommand(command);
print('Response from device: $response');
} catch (e) {
print('Failed to send command: $e');
}
}
6. 断开连接
当你不再需要控制设备时,记得断开连接:
Future<void> disconnectFromDevice() async {
try {
await _controller.disconnect();
print('Disconnected from device');
} catch (e) {
print('Failed to disconnect: $e');
}
}
7. 处理异常
在实际使用中,你可能会遇到各种异常情况(如网络问题、设备未响应等),因此建议在使用插件时进行适当的异常处理。
8. 示例代码
以下是一个完整的示例代码,展示了如何连接、发送命令和断开连接:
import 'package:flutter/material.dart';
import 'package:lanio_la5r_controller/lanio_la5r_controller.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
home: DeviceControlScreen(),
);
}
}
class DeviceControlScreen extends StatefulWidget {
[@override](/user/override)
_DeviceControlScreenState createState() => _DeviceControlScreenState();
}
class _DeviceControlScreenState extends State<DeviceControlScreen> {
LanioLa5rController _controller = LanioLa5rController();
Future<void> connectToDevice() async {
try {
await _controller.connect('192.168.1.100', 8080);
print('Connected to device');
} catch (e) {
print('Failed to connect: $e');
}
}
Future<void> sendControlCommand() async {
try {
String command = 'TURN_ON_LED';
String response = await _controller.sendCommand(command);
print('Response from device: $response');
} catch (e) {
print('Failed to send command: $e');
}
}
Future<void> disconnectFromDevice() async {
try {
await _controller.disconnect();
print('Disconnected from device');
} catch (e) {
print('Failed to disconnect: $e');
}
}
[@override](/user/override)
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('LANIO LA5R Controller'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(
onPressed: connectToDevice,
child: Text('Connect to Device'),
),
ElevatedButton(
onPressed: sendControlCommand,
child: Text('Send Control Command'),
),
ElevatedButton(
onPressed: disconnectFromDevice,
child: Text('Disconnect from Device'),
),
],
),
),
);
}
}

