如何将数据从AsyncTask发送到片段

public interface DataListener {
    void onDataReceived(String data);
}

public class MyFragment extends Fragment implements DataListener {
    // ...

    @Override
    public void onDataReceived(String data) {
        // 处理接收到的数据
        // ...
    }
}

public class MainActivity extends AppCompatActivity {
    // ...

    public void setDataListener(DataListener listener) {
        // 创建AsyncTask实例，并将接口实例传递给AsyncTask
        MyAsyncTask asyncTask = new MyAsyncTask();
        asyncTask.setDataListener(listener);
        // 执行AsyncTask
        asyncTask.execute();
    }
}

public class MyAsyncTask extends AsyncTask<Void, Void, String> {
    private DataListener mListener;

    public void setDataListener(DataListener listener) {
        mListener = listener;
    }

    @Override
    protected String doInBackground(Void... voids) {
        // 执行后台任务，获取数据
        String data = "这是要发送的数据";
        return data;
    }

    @Override
    protected void onPostExecute(String data) {
        // 将数据发送给片段
        mListener.onDataReceived(data);
    }
}