Databases
StackOverflow2013
Postsdbo
POExpandable ListView with JSON Data in android
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POExpandable ListView with JSON Data in android
    primarykey
    data
    text
    <p>I have a big problem and I have been searching on the web to have a good solution for this problem but I couldn't find any approach for this problem so I want help. </p> <p>I need to use expandable list view which get data from server (JSON Array) and i have categories, <code>GroupData</code> and its items, <code>ChildData</code>. I don't know how to get the child data for each parent group... i need something like <code>SimpleCursorTreeAdapter</code> but i didn't find anything. </p> <p>This is what i reach for till now but it's not working so please help me:</p> <pre><code> static ArrayList&lt;HashMap&lt;String, String&gt;&gt; mapList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); static ArrayList&lt;HashMap&lt;String, String&gt;&gt; catItemsList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); static ArrayList&lt;ArrayList&lt;HashMap&lt;String, String&gt;&gt;&gt; ItemsList = new ArrayList&lt;ArrayList&lt;HashMap&lt;String, String&gt;&gt;&gt;(); static ListView order_list; static ExpandableListView order_items_list; static SimpleAdapter adapter,ItemsAdapter; protected void BindOrederItemList(final int order_id) { // TODO Auto-generated method stub //select all categories from order items where order_id =?? //select items where category=?? JSONObject params = new JSONObject(); //int no_pepole=Integer.valueOf(noOfGest_txt.getText().toString()); try { // params.put("order_status",myStatus); int rest_id=prefs.getInt("Rest_id", 0); params.put("order_id", order_id); params.put("lang_id", 1); params.put("rest_id", rest_id ); //params.put("order_status", 0); // params.put("noOfpepole",number_of_guest); } catch(Exception e) { e.printStackTrace(); } String Url="http://192.168.3.113/mywebservices.php?op=GetOrderCategory"; GetNetworkData.OnPostExecuteListener listener=new GetNetworkData.OnPostExecuteListener() { @Override public void onPostExecute(String result) { // TODO Auto-generated method stub if (result!=null) { try { catItemsList.clear(); JSONArray jArray = new JSONArray(result); ArrayList&lt;ArrayList&lt;HashMap&lt;String, String&gt;&gt;&gt; list=new ArrayList&lt;ArrayList&lt;HashMap&lt;String, String&gt;&gt;&gt;(); // ArrayList&lt;Integer&gt; category=new ArrayList&lt;Integer&gt;(); for (int i = 0; i &lt; jArray.length(); i++) { HashMap&lt;String, String&gt; Catmap = new HashMap&lt;String, String&gt;(); JSONObject e = jArray.getJSONObject(i); id=e.getInt("order_id"); cat_name=e.getString("cat_name"); cat_id=e.getInt("cat_id"); Catmap.put("cat_id",String.valueOf(cat_id)); Catmap.put("cat_name", cat_name); catItemsList.add(Catmap); Log.i("Insid For Loop", "order ID "+order_id); list= BindCatItems(cat_id, order_id); Log.i("Insid For Loop", "Child size = "+list.size()); } // Log.i("Insid For Loop", "Group size = "+catItemsList.size()); SimpleExpandableListAdapter expandListAdapter= new SimpleExpandableListAdapter(getActivity(), catItemsList, R.layout.group_item, new String[] {"cat_name"},new int[]{R.id.lbl_cat_group}, list, R.layout.category_row, new String[]{"item_name"}, new int[]{R.id.txt_category_row}); order_items_list.setAdapter(expandListAdapter); // Log.i("Bind item", "CAT SIZE "+catItemsList.size()); } catch(Exception e) { e.printStackTrace(); } } } }; try { GetNetworkData task = new GetNetworkData(Url,params,listener); task.execute(); } catch(Exception e) { e.printStackTrace(); } } protected ArrayList&lt;ArrayList&lt;HashMap&lt;String, String&gt;&gt;&gt; BindCatItems(int cat_id,int order_id) { // TODO Auto-generated method stub JSONObject params = new JSONObject(); //int no_pepole=Integer.valueOf(noOfGest_txt.getText().toString()); try { // params.put("order_status",myStatus); int rest_id=prefs.getInt("Rest_id", 0); params.put("order_id", order_id); params.put("lang_id", 1); params.put("cat_id",cat_id ); //params.put("order_status", 0); // params.put("noOfpepole",number_of_guest); } catch(Exception e) { e.printStackTrace(); } String Url="http://192.168.3.113/mywebservices.php?op=GetOrderItems"; GetNetworkData.OnPostExecuteListener listener=new GetNetworkData.OnPostExecuteListener() { @Override public void onPostExecute(String result) { // TODO Auto-generated method stub if (result!=null) { try { Log.i("log bind","Inside Bind Category items"); // catItemsList.clear(); mapList.clear(); JSONArray jArray = new JSONArray(result); for (int i = 0; i &lt; jArray.length(); i++) { HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); JSONObject e = jArray.getJSONObject(i); int id=e.getInt("item_id"); if (id==0) { } else { map.put("item_id",String.valueOf(e.getInt("item_id"))); map.put("oi_id", String.valueOf(e.getInt("oi_id"))); map.put("item_name", e.getString("item_name")); map.put("quantity",String.valueOf( e.getString("quantity"))); map.put("price", String.valueOf("price")); mapList.add(map); } } ItemsList.add(mapList); // Log.i("Bind Item Order", "CAT SIZE "+catItemsList.size()); /* ItemsAdapter=new SimpleAdapter(getActivity(), catItemsList, R.layout.list_item, new String[] {"item_name"}, new int[]{R.id.list_item_title}); */ // Log.i("Add Section","ItemsAdapter count= "+ItemsAdapter.getCount()); //order_list.setAdapter(adapter); //adapter.notifyDataSetChanged(); } catch(Exception e) { e.printStackTrace(); } } } }; try { GetNetworkData task = new GetNetworkData(Url,params,listener); task.execute(); } catch(Exception e) { e.printStackTrace(); } return ItemsList; } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USBasant
    1. USBasant
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POExpandable ListView with JSON Data in android
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. POExpandable ListView with JSON Data in android
      1. USjjLin
      1. VTFavorite
    1. COcan you make a beans of your json and add them to arrayList this way you will have to use jst one list to update childView and groupView.The childView and parentview works the same way as getView from adapter for ListView
      singulars
      1. POExpandable ListView with JSON Data in android
      1. USIts not blank
    2. COcould you please explain more about (beans of your json )and give me an example
      singulars
      1. POExpandable ListView with JSON Data in android
      1. USBasant
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload