使用片段循环浏览问题清单

Question

我正在编写一个代码，其中包含使用片段要问的一系列问题。每次用户单击按钮（顶部片段）时，都应显示一个新问题（底部片段）。不幸的是，我没有从MainActivity（使用顶部片段中的onclicklistener）向问题显示片段发送问题的运气。我在这里做错了吗？

谢谢 主要活动

public class MainActivity extends AppCompatActivity implements widgetFragment.OnMessageRecieveistener, widgetFragment.OnRatingRecieveListener{

    String[] list = {"Most lovely bark?", "Prettiest eyes?", "Loves daddy most?","Best behaved?"};

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


/////TOP FRAGMENT/////
        if(findViewById(R.id.widgetFragment)!=null){
                if(savedInstanceState!=null){
                    return;
                }
                widgetFragment widgetFragment = new widgetFragment();
                getSupportFragmentManager().beginTransaction().add(R.id.widgetFragment, widgetFragment, null).commit();
            }

/////BOTTOM FRAGMENT/////
        if(findViewById(R.id.question_fragment)!=null){
                if(savedInstanceState!=null){
                return;
                }
                questionFlash questionFlash = new questionFlash();
                getSupportFragmentManager().beginTransaction().add(R.id.question_fragment, questionFlash, null).commit();

            }
        }

    @Override //THIS CHANGES THE QUESTION
    public void onMessageRecieve(float i) {

            boolean proceed= true;
            Toast.makeText(this, "Click Rating!", Toast.LENGTH_SHORT).show();
            questionFlash questionFlash = new questionFlash();
            Bundle bundle = new Bundle();
                for (int j = 0; j < listQuestion.length; j++) {
                    if(proceed==true) {
                    String question = listQuestions[j];//LIST OF QUESTIONS
                    bundle.putString("key", question);
                    questionFlash.setArguments(bundle);
                    proceed=false;                  

                }
            }

            FragmentTransaction fragmentTransaction=getSupportFragmentManager().beginTransaction().add(R.id.question_fragment, questionFlash, null);
            fragmentTransaction.addToBackStack(null);
            fragmentTransaction.commit();
    }

问题类//单击按钮时不接收或更改问题

public class questionFlash extends Fragment {

    Bundle bundle = new Bundle();
    TextView question; 

    public questionFlash(){
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = (View) inflater.inflate(R.layout.question_flash, container, false);
        question = view.findViewById(R.id.questions);
        if(bundle==null)
        {
            if(savedInstanceState!=null){
                Toast.makeText(getContext(), "ERROR AGAIN", Toast.LENGTH_SHORT).show();
            }
            String name = bundle.getString("key");
            question.setText(name);
        }
        return view;
    }