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lib/iflytek_speech_demo.dart

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+
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+
+typedef Future<dynamic> EventHandler(Map<String, dynamic> event);
+
+class IflytekSpeechDemo {
+  static const MethodChannel _channel = MethodChannel('iflytek_speech_demo');
+
+  late EventHandler _onReceiveSpeechText;
+
+  // test方法
+  static Future<String?> get platformVersion async {
+    final String? version = await _channel.invokeMethod('getPlatformVersion');
+    return version;
+  }
+  // 编写自定义异步方法，调用原生sdk传递过来的数据
+  // 1. 初始化方法
+  Future<int> init(String appId) async {
+    try{
+      int ret = await _channel.invokeMethod('init', {
+        "appID": appId
+      });
+      if(ret == 0) {
+        _channel.setMethodCallHandler(_handleMethod);
+      }
+      return ret;
+    }catch(e) {
+      print(e);
+      return 9999999;
+    }
+  }
+
+  Future<Future> _handleMethod(MethodCall call) async {
+    print("speech_handleMethod:");
+
+    switch (call.method) {
+      case "onReceiveSpeechText":
+        return _onReceiveSpeechText(call.arguments.cast<String, dynamic>());
+      default:
+        throw UnsupportedError("Unrecognized Event:"+call.method);
+    }
+  }
+
+  Future<String> start(EventHandler onReceiveSpeechText) async {
+    _onReceiveSpeechText = onReceiveSpeechText;
+    try{
+      return await _channel.invokeMethod('start');
+    }catch(e) {
+      print(e);
+      return "9999999";
+    }
+  }
+
+  Future<String> stop() async {
+    return await _channel.invokeMethod('stop');
+  }
+
+  Future<String> cancel() async {
+    return await _channel.invokeMethod('cancel');
+  }
+
+}