init

example/lib/main.dart

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+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:terra/terra.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  String _platformVersion = 'Unknown';
+  final _terraPlugin = Terra();
+
+  @override
+  void initState() {
+    super.initState();
+    initPlatformState();
+  }
+
+  // Platform messages are asynchronous, so we initialize in an async method.
+  Future<void> initPlatformState() async {
+    String platformVersion;
+    // Platform messages may fail, so we use a try/catch PlatformException.
+    // We also handle the message potentially returning null.
+    try {
+      platformVersion =
+          await _terraPlugin.getPlatformVersion() ?? 'Unknown platform version';
+    } on PlatformException {
+      platformVersion = 'Failed to get platform version.';
+    }
+
+    // If the widget was removed from the tree while the asynchronous platform
+    // message was in flight, we want to discard the reply rather than calling
+    // setState to update our non-existent appearance.
+    if (!mounted) return;
+
+    setState(() {
+      _platformVersion = platformVersion;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Plugin example app'),
+        ),
+        body: Center(
+          child: Column(
+            children: [
+              Text('Running on: $_platformVersion\n'),
+              ElevatedButton(
+                  onPressed: () async {
+                    var deviceCount = await Terra.openAllDevices();
+                    print("设备数量：$deviceCount");
+                  },
+                  child: const Text("连接设备")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var closeResult = await Terra.closeAllDevices();
+                    print("关闭设备结果：$closeResult");
+                  },
+                  child: const Text("关闭所有设备")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var sn = await Terra.getDeviceSn();
+                    print("设备SN：$sn");
+                  },
+                  child: const Text("获取设备SN")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var res = await Terra.setIntegrationTime(10.00);
+                    print("设置积分时间结果：$res");
+                  },
+                  child: const Text("设置积分时间")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var res = await Terra.setAverageTimes(3);
+                    print("设置平均次数结果：$res");
+                  },
+                  child: const Text("设置平均次数")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var res = await Terra.setTriggerMode(0);
+                    print("设置触发模式：$res");
+                  },
+                  child: const Text("设置触发模式")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var res = await Terra.isConnect();
+                    print("是否连接：$res");
+                  },
+                  child: const Text("是否连接")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var spectrum = await Terra.getRamanSpectrum();
+                    print("光谱：$spectrum");
+                  },
+                  child: const Text("获取光谱（处理后的光谱）")
+              ),
+              ElevatedButton(
+                  onPressed: () async {
+                    var registerRes = await Terra.ramanMatchRegister();
+                    print("注册结果：$registerRes");
+                  },
+                  child: const Text("算法注册")
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}