Check And Read inner json array which is in main json array in android?

Question

I want to check and read a JSON array which is in main JSON array.

How can I check if main jsonarray has a "submenu" array that I want to read?

I implemented my code here but it gives me no value in submenu array:

for (int i = 0; i < jarray.length(); i++) {
  listDataHeader.add(jarray.getJSONObject(i).get(ClassVariable.MENU.TITLE).toString());

  // For Getting Main Menu in ArrayList
  String title = jarray.getJSONObject(i).get(ClassVariable.MENU.TITLE).toString();
  String uid = jarray.getJSONObject(i).get(ClassVariable.MENU.UID).toString();
  String pid = jarray.getJSONObject(i).get(ClassVariable.MENU.PID).toString();

  HashMap<String,String> map = new HashMap<String, String>();
  map.put(ClassVariable.MENU.TITLE, title);
  map.put(ClassVariable.MENU.UID, uid);
  map.put(ClassVariable.MENU.PID, pid);
  headerarraylist.add(map);

  if (jarray.getJSONObject(i).has(ClassVariable.SUBMENU.SUBMENU)) {
    JSONArray jarraysubmenu  = jarray.getJSONObject(i).getJSONArray(ClassVariable.SUBMENU.SUBMENU);
    Log.e("JarraySubmenu","----->" + jarraysubmenu);
  }
}

screenshot of sample JSON

if(jarray.getJSONObject(i).has(ClassVariable.SUBMENU.SUBMENU)) { JSONArray jarraysubmenu =jarray.getJSONObject(i).getJSONArray(ClassVariable.SUBMENU.SUBMENU); Log.e("JarraySubmenu","----->"+jarraysubmenu); } why this is not work for check jsonarray (SUB_MENU) condition — Mahesh
– Mahesh, Commented Feb 3, 2014 at 11:24
but submenu array is not for all position you can see in my image on 0 position have no tag submenu but in 1 position of menu have tag sub_menu so first i want to check if SUB_MENU ARRAY is there if yes than i can read — Mahesh
– Mahesh, Commented Feb 3, 2014 at 11:27
see stackoverflow.com/questions/12508823/…, you can get all tag and check if have that do your job — Shayan Pourvatan
– Shayan Pourvatan, Commented Feb 3, 2014 at 11:29

Sagar Shah · Accepted Answer · 2014-02-04 17:26:01Z

0

How can I check if main jsonarray has a "submenu" array that I want to read?

Here you go:

JsonArray jarr = jarray.getJSONObject(i).optJSONArray(ClassVariable.SUBMENU.SUBMENU);

if(jarr.length()>0 && jarr!=null)
{
    SUBMENU Jarray is present
}
else
{
    SUBMENU Jarray is Not present
}

edited Feb 4, 2014 at 17:26

answered Feb 3, 2014 at 14:12

Sagar Shah

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