#码力全开·技术π对#Flutter开发:PlatformChannel通信时出现MissingPluginException的调试步骤？

override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
    MethodChannel(flutterEngine.dartExecutor, "your_channel_name").setMethodCallHandler { call, result ->
        // 处理逻辑
    }
}

let controller = window?.rootViewController as! FlutterViewController
let channel = FlutterMethodChannel(name: "your_channel_name", binaryMessenger: controller.binaryMessenger)
channel.setMethodCallHandler { call, result in
    // 处理逻辑
}

const platform = MethodChannel('your_channel_name'); // 必须与原生端一致

class MainActivity: FlutterActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        GeneratedPluginRegistrant.registerWith(this)

        val channel = MethodChannel(flutterEngine?.dartExecutor?.binaryMessenger, "my_channel")
        channel.setMethodCallHandler { call, result ->
            when (call.method) {
                "getData" -> result.success("Native Response")
                else -> result.notImplemented()
            }
        }
    }
}

final platform = MethodChannel('my_channel');
try {
  final String response = await platform.invokeMethod('getData');
} on PlatformException catch (e) {
  print("Failed to invoke method: ${e.message}");
}

new MethodChannel(flutterEngine, "TEST_CHANNEL")
    .setMethodCallHandler((call, result) -> {
        result.success("Test response");
    });

final response = await MethodChannel('TEST_CHANNEL').invokeMethod('test');
print(response); // 应输出"Test response"

flutter clean
flutter pub get