Android截击StringRequest将响应传递给MainActivity

需要在MainActivity中获取响应

我的排球课。Java语言

public class MyVolleyClass  {
    Context context;

    public String stringResponse()
    {

        StringRequest stringRequest=new StringRequest(Request.Method.POST, URLManager.BASE_URL, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {

                //need to return this response to my main activity



            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {

            }
        });

        MySingleton.getInstance(context).addTorequestque(stringRequest);


        return "";   //whenever a response is got i need to return the response from the server to main activity


    }

}

> MainActivity.java


public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
//expecting the string returned from the MyVolleyClass.java
        String response=new DataFetcherVolley(getApplicationContext()).dataFetch();
        Toast.makeText(this,response,Toast.LENGTH_LONG).show();   
    }
}

1. 我只需要MyVolleyClass对MainActivity的字符串响应
2. 请在MyVolleyClass中进行一些更改
3. 提前感谢