在flutter中找不到参数的android()方法

MethodChannel _channel = MethodChannel('your_channel_name');

String result = await _channel.invokeMethod('your_method_name', {'param1': value1, 'param2': value2});

MethodChannel channel = new MethodChannel(getFlutterView(), "your_channel_name");
channel.setMethodCallHandler(new MethodChannel.MethodCallHandler() {
    @Override
    public void onMethodCall(MethodCall call, MethodChannel.Result result) {
        if (call.method.equals("your_method_name")) {
            // 处理方法调用并返回结果
            String param1 = call.argument("param1");
            String param2 = call.argument("param2");
            // 执行相应的操作
            result.success("Your result");
        } else {
            result.notImplemented();
        }
    }
});