使用 volley 在 Recyclerview 中解析 JSON 数组，为什么它显示的数据少于服务器上的数据？

Question

我正在尝试在recyclerview 中使用volley 在android 中解析Json Array，但它显示的数据少于服务器上的数据。 我的意思是它只解析 4 个数据，服务器有 10 个。为什么？ 代码：

JsonObjectRequest jsonObjectReq = new JsonObjectRequest(Request.Method.GET, url, null,

                new Response.Listener<JSONObject>() {                
                @Override
                public void onResponse(JSONObject response) {

                    try {
                       JSONObject data, deal_mode;
    String total, ref, name,category_name,start_date,end_date,offer_price,market_price,gain,structure_note,other_note;

    data = resp.getJSONObject("data");
    total = data.getString("total");
    JSONArray data1 = data.getJSONArray("data");

    try {
        for (int i = 0; i <response.length(); i++) {           
            JSONObject jresponse = data1.getJSONObject(i);
            ref = jresponse.getString("ref");
            name = jresponse.getString("name");
            deal_mode = jresponse.getJSONObject("deal_mode");
            category_name=deal_mode.getString("category_name");
            start_date=jresponse.getString("start_date");
            end_date=jresponse.getString("end_date");
            offer_price=jresponse.getString("offer_price");
            market_price=jresponse.getString("market_price");
            gain=jresponse.getString("gain");
            structure_note=jresponse.getString("structure_note");
            other_note=jresponse.getString("other_note");

            Toast.makeText(getApplication(), name, Toast.LENGTH_LONG).show();          
        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // progressBar.setVisibility(View.INVISIBLE);
            Toast.makeText(getApplication(), error.toString(), Toast.LENGTH_LONG).show();
        }
    }) {
        //This is for Headers
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> params = new HashMap<String, String>();
            params.put("Content-Type", "application/json; charset=UTF-8");
            params.put("Authorization", "Bearer" + getToken);
            return params;
        }
    };
    //Add the Request to the RequestQueue.
    VolleySingleton.getInstance(getApplicationContext()).addToRequestQueue(jsonObjectReq, REQUEST_TAG);

Answer 1

 try {
    for (int i = 0; i <data1.length(); i++) {           
        JSONObject jresponse = data1.getJSONObject(i);
        ref = jresponse.getString("ref");
        name = jresponse.getString("name");
        deal_mode = jresponse.getJSONObject("deal_mode");
        category_name=deal_mode.getString("category_name");
        start_date=jresponse.getString("start_date");
        end_date=jresponse.getString("end_date");
        offer_price=jresponse.getString("offer_price");
        market_price=jresponse.getString("market_price");
        gain=jresponse.getString("gain");
        structure_note=jresponse.getString("structure_note");
        other_note=jresponse.getString("other_note");

        Toast.makeText(getApplication(), name, Toast.LENGTH_LONG).show();          
    }

您的代码中的错误是您只是将 for 循环迭代到 response.length 但 for 循环应该迭代到 data1.length 数组。 问题解决了干杯！！！