如何将数据从FCM的onMessageReceived()发送到Fragment？

public interface MessageListener {
    void onNewMessageReceived(String message);
}

public class MyFragment extends Fragment implements MessageListener {
    @Override
    public void onNewMessageReceived(String message) {
        // 处理接收到的消息
        Log.d("MyFragment", "New message received: " + message);
    }
}

public class MainActivity extends AppCompatActivity {
    private MyFragment myFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        myFragment = (MyFragment) getSupportFragmentManager().findFragmentById(R.id.fragment_container);
        if (myFragment != null) {
            myFragment.setMessageListener(this);
        }
    }

    public void setMessageListener(MessageListener listener) {
        // 保存接口实例以便后续调用
    }
}

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);

        // 获取消息数据
        String message = remoteMessage.getData().get("message");

        // 调用接口方法传递消息
        if (MainActivity.getInstance() != null) {
            MainActivity.getInstance().getMessageListener().onNewMessageReceived(message);
        }
    }
}