小编Ric*_*hie的帖子

我已经习惯了几天了.无法做对.Android工作室不会让我用这个错误编译它.所以,我有这个应用程序,我有两个选项卡和两个片段.一个片段称为new,该片段获取json.但我无法正确地做到这一点.我上传了一张错误图片和类文件的图片.你能帮帮我吗？

错误:"无法解析构造函数JsonObjectRequest(int,java.lang.String,null .......)

new_fragment.java

public class new_fragment extends Fragment {
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    private String mParam1;
    private String mParam2;
    private VolleySingleton volleySingleton;
    private ImageLoader imageLoader;
    private RequestQueue requestQueue;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() !=null){
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
        volleySingleton = VolleySingleton.getsInstance();
        requestQueue = volleySingleton.getRequestQueue();
        RequestQueue requestQueue = VolleySingleton.getsInstance().getRequestQueue();
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET,"http://10.0.8.152/json/new.json",null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) { …