Volley JSONObjectRequest 和 JSONArrayRequest 都给出错误 Android Java

Question

我正在尝试按如下方式解析 JSON 数据：

{"Returnresult":[{"api_status":"1","user_temp_id":"280","otp":"1234"}]}

我按照Android开发者网站上给出的教程进行了尝试

  String url = "some url";

    RequestQueue queue = Volley.newRequestQueue(this);
    JsonArrayRequest jsonArrayRequest;
    jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null,
            response -> {

                String api_status = null;
                try {
                    JSONArray obj = response.getJSONArray(0);
                    api_status = obj.getString(0);
                    System.out.println(" api_status is" + api_status);
               
                      if (api_status.equals("1")) {
                      //some code
                      }

我被卡住了

JSONArray obj = response.getJSONArray(0); // Tried as array this time

1. 如果我尝试将它作为 JSONArray 获取，当我尝试时，它会显示“......类型为 org.json.JSONObject 的无法转换为 JSONArray”：

   JSONObject obj = response.getJSONObject(0);

2. 如果我尝试将其作为 JSONObject 获取，则错误显示“....类型 org.json.JSONArray 无法转换为 JSONObject”，JSONObjectRequest 位于顶部

请帮忙！

根据 Dharmender 编辑代码：

  RequestQueue requestQueue = Volley.newRequestQueue(trial1.this);

        JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, url, null,
                response ->  {
                    System.out.println(response.toString());
                       try {
                           JSONObject json = new JSONObject(response.toString());
                           JSONArray returnresult = json.getJSONArray("Returnresult");

                           for(int countItem = 0;countItem<returnresult.length();countItem++){
                               JSONObject returnObject = returnresult.getJSONObject(countItem);
                               String apiStatus=returnObject.isNull("api_status")?"":returnObject.optString("api_status");
                               System.out.println("Status is "+apiStatus);
                           }
                    } catch (JSONException e) {
                           e.printStackTrace();
                       }

Answer 1

试试下面的代码。

    RequestQueue requestQueue = Volley.newRequestQueue(trial1.this);

    JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET, url, null,
            response ->  {
                System.out.println(response.toString());
                   try {
                       JSONObject json = new JSONObject(response.toString());
                       JSONArray returnresult = json.getJSONArray("Returnresult");

                       for(int countItem = 0;countItem<returnresult.length();countItem++){
                           JSONObject returnObject = returnresult.getJSONObject(countItem);
                           String apiStatus=returnObject.isNull("api_status")?"":returnObject.optString("api_status");
                           System.out.println("Status is "+apiStatus);
                       }
                } catch (JSONException e) {
                       e.printStackTrace();
                   }