我正在尝试将数据传递给flatter，它来自接收器，一切正常，但唯一一件事是我无法将数据发送给flatter，我必须调用notificationreceiver.java中的events.success（）方法，但我不知道如何做到这一点。我将events param传递给notificationreceiver的构造函数，但是清单文件说：“这个类应该提供一个默认构造函数（一个没有参数的公共构造函数）”。然后我搜索了一些解决这个错误的方法，找到了registerreceiver（）方法，但效果不太好。那么我如何传递这些数据呢？你知道吗？
notificationreceiver.java文件：

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

public class NotificationReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
    final String action = intent.getAction();

    if (action.equals("Done")) {
        Toast.makeText(context, "Task completed", Toast.LENGTH_SHORT).show();
    } else if (action.equals("Snooze")) {
        Toast.makeText(context, "Task snoozed", Toast.LENGTH_SHORT).show();
    }

    // pass action string to flutter, by calling events.success() method somehow
  }
}

mainactivity.java:

@Override
public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
    super.configureFlutterEngine(flutterEngine);
    final String methodChannel = "com.example.colorfultasks/notifications";
    final String eventChannel = "com.example.colorfultasks/events";

    service = new Intent(MainActivity.this, NotificationService.class);

    new EventChannel(getFlutterEngine().getDartExecutor().getBinaryMessenger(), eventChannel)
            .setStreamHandler(new EventChannel.StreamHandler() {
                @Override
                public void onListen(Object arguments, EventChannel.EventSink events) {
                    // I don't know what to do here
                }

                @Override
                public void onCancel(Object arguments) {}
            });