{"id":25945,"date":"2022-12-14T14:43:17","date_gmt":"2022-12-14T09:13:17","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-making-a-listview-from-json-array\/"},"modified":"2022-12-14T14:43:17","modified_gmt":"2022-12-14T09:13:17","slug":"solved-making-a-listview-from-json-array","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-making-a-listview-from-json-array\/","title":{"rendered":"[Solved] Making a listview from JSON array"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-49891317\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"49891317\" data-parentid=\"49891101\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You are creating an empty list and you&#8217;re giving it to the adapter. So, there is not a list to display.<\/p>\n<pre><code>listView = (ListView) findViewById(R.id.lstPublikasi);\n\nlstPublikasi = new ArrayList&lt;Publikasi&gt;();\n\npublikasiAdapter = new PublikasiAdapter(lstPublikasi,getApplicationContext());\n<\/code><\/pre>\n<p>You must fill the list when the response come successfully. After that you must give the list to the adapter&#8217;s method such as &#8220;updateList();&#8221;<\/p>\n<p>Here is the sample: <\/p>\n<pre><code>    private void showList() {\n        final JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, uri, null, new Response.Listener &lt; JSONArray &gt; () {@\n            Override\n            public void onResponse(JSONArray response) {\n                for (int i = 0; i &lt; jsonArray.length(); i++) {\n                    try {\n                        lstPublikasi.add(new Publikasi(jsonArray.getJSONObject(i)));\n                    } catch (JSONException e) {\n                        e.printStackTrace();\n                    }\n                }\n                publikasiAdapter.updateList(lstPublikasi);\n            }\n        }, new Response.ErrorListener() {@\n            Override\n            public void onErrorResponse(VolleyError error) {}\n        });\n    }\n    public class PublikasiAdapter extends ArrayAdapter &lt; Publikasi &gt; {\n        private List &lt; Publikasi &gt; lstPublikasi;\n        private Context mCtx;\n        public PublikasiAdapter(List &lt; Publikasi &gt; P, Context c) {\n            super(c, R.layout.list_publikasi, P);\n            this.lstPublikasi = P;\n            this.mCtx = c;\n        }@\n        Override\n        public View getView(int position, View convertView, ViewGroup parent) {\n            LayoutInflater inflater = LayoutInflater.from(mCtx);\n            if (convertView == null) {\n                convertView = LayoutInflater.from(getContext()).inflate(R.layout.list_publikasi, parent, false);\n            }\n            TextView textNama = (TextView) convertView.findViewById(R.id.textNama);\n            TextView textDetail = (TextView) convertView.findViewById(R.id.textDetail);\n            TextView textStatus = (TextView) convertView.findViewById(R.id.textStatus);\n            TextView textPeriode = (TextView) convertView.findViewById(R.id.textPeriode);\n            Publikasi publikasi = lstPublikasi.get(position);\n            textNama.setText(publikasi.namaJurnal);\n            textDetail.setText(publikasi.tipePublikasi);\n            textStatus.setText(publikasi.status);\n            textPeriode.setText(publikasi.periode);\n            return convertView;\n        }\n        public void updateList(List &lt; Publikasi &gt; mlstPublikasi) {\n            lstPublikasi = mlstPublikasi;\n            notifyDataSetChanged();\n        }\n    }\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Making a listview from JSON array <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You are creating an empty list and you&#8217;re giving it to the adapter. So, there is not a list to display. listView = (ListView) findViewById(R.id.lstPublikasi); lstPublikasi = new ArrayList&lt;Publikasi&gt;(); publikasiAdapter = new PublikasiAdapter(lstPublikasi,getApplicationContext()); You must fill the list when the response come successfully. After that you must give the list to the adapter&#8217;s method &#8230; <a title=\"[Solved] Making a listview from JSON array\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-making-a-listview-from-json-array\/\" aria-label=\"More on [Solved] Making a listview from JSON array\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[452,2775,356],"class_list":["post-25945","post","type-post","status-publish","format-standard","hentry","category-solved","tag-android","tag-android-volley","tag-json"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Making a listview from JSON array - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-making-a-listview-from-json-array\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Making a listview from JSON array - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You are creating an empty list and you&#8217;re giving it to the adapter. So, there is not a list to display. listView = (ListView) findViewById(R.id.lstPublikasi); lstPublikasi = new ArrayList&lt;Publikasi&gt;(); publikasiAdapter = new PublikasiAdapter(lstPublikasi,getApplicationContext()); You must fill the list when the response come successfully. After that you must give the list to the adapter&#8217;s method ... 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So, there is not a list to display. listView = (ListView) findViewById(R.id.lstPublikasi); lstPublikasi = new ArrayList&lt;Publikasi&gt;(); publikasiAdapter = new PublikasiAdapter(lstPublikasi,getApplicationContext()); You must fill the list when the response come successfully. After that you must give the list to the adapter&#8217;s method ... 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