Get JSONArray without array name

Question

I m new to JSON and trying this tutorial  http   p-xr com android-tutorial-how-to-parse-read-json-data-into-a-android-listview  comments  I m new to JSON  C languages  Java and also Android  but am learning   The tutorial uses what I m calling a named array  but all of the JSON i m going to be using in my android project will use simple table rows with no named array   Examples of the JSON i m using and the earthquake json from the tutorial are below   The tutorial iterates through the earthquake array and converts into a JAVA hashmap list using the following code   JSONArray  earthquakes   json getJSONArray  earthquakes        for int i 0 i lt earthquakes length   i                                     HashMap lt String  String gt  map   new HashMap lt String  String gt                 JSONObject e   earthquakes getJSONObject i            map put  id    String valueOf i            map put  name    Earthquake name     e getString  eqid             map put  magnitude    Magnitude       e getString  magnitude             mylist add map                   My question is  how can I use json getJSONArray     if my JSON is just simple as below   I can convert the rest of the code  I just need to know how to load that JSON using the getJSONArray  strJsonArrayName   if I don t have a strJsonArrayName   My JSON  UnNamed Array              cnt  1       name   American        pk  7               cnt  2       name   Celebrities        pk  3               cnt  1       name   Female        pk  2               cnt  1       name   Language        pk  8               cnt  1       name   Male        pk  1               cnt  1       name   Region        pk  9         Tutorial s JSON  Named Array        earthquakes                 eqid   c0001xgp          magnitude  8 8         lng  142 369         src   us          datetime   2011-03-11 04 46 23          depth  24 4         lat  38 322                     eqid   c000905e          magnitude  8 6         lng  93 0632         src   us          datetime   2012-04-11 06 38 37          depth  22 9         lat  2 311                     eqid   2007hear          magnitude  8 4         lng  101 3815         src   us          datetime   2007-09-12 09 10 26          depth  30         lat  -4 5172                     eqid   c00090da          magnitude  8 2         lng  92 4522         src   us          datetime   2012-04-11 08 43 09          depth  16 4         lat  0 7731                     eqid   2007aqbk          magnitude  8         lng  156 9567         src   us          datetime   2007-04-01 18 39 56          depth  10         lat  -8 4528                     eqid   2007hec6          magnitude  7 8         lng  100 9638         src   us          datetime   2007-09-12 21 49 01          depth  10         lat  -2 5265                     eqid   a00043nx          magnitude  7 7         lng  100 1139         src   us          datetime   2010-10-25 12 42 22          depth  20 6         lat  -3 4841                     eqid   2010utc5          magnitude  7 7         lng  97 1315         src   us          datetime   2010-04-06 20 15 02          depth  31         lat  2 3602                     eqid   2009mebz          magnitude  7 6         lng  99 9606         src   us          datetime   2009-09-30 08 16 09          depth  80         lat  -0 7889                     eqid   2009kdb2          magnitude  7 6         lng  92 9226         src   us          datetime   2009-08-10 17 55 39          depth  33 1         lat  14 0129               In the tutorial  based on the answers from  M GG   LL and  Cody Caughlan   I was able to reformat the JSONFunctions getJSONFromURL into a JSONArray instead of a JSONObject   Here is my modified working code  thank you   public class JSONfunctions   public static JSONArray getJSONfromURL String url       InputStream is   null      String result           JSONArray jArray   null               HttpClient httpclient   new DefaultHttpClient                HttpGet httpget   new HttpGet url               HttpResponse response   httpclient execute httpget               HttpEntity entity   response getEntity                is   entity getContent                 BufferedReader reader   new BufferedReader new InputStreamReader is  iso-8859-1   8               StringBuilder sb   new StringBuilder                String line   null              while   line   reader readLine       null                        sb append line     n                              is close                result sb toString             jArray   new JSONArray result                   return jArray

User · Accepted Answer

You don t need to call json getJSONArray   at all  because the JSON you re working with already is an array  So  don t construct an instance of JSONObject  use a JSONArray  This should suffice          JSONArray json   new JSONArray result           for int i 0 i lt json length   i                                 HashMap lt String  String gt  map   new HashMap lt String  String gt             JSONObject e   json getJSONObject i        map put  id    String valueOf i        map put  name    Earthquake name     e getString  eqid         map put  magnitude    Magnitude       e getString  magnitude         mylist add map                   You can t use exactly the same methods as in the tutorial  because the JSON you re dealing with needs to be parsed into a JSONArray at the root  not a JSONObject

User · Answer

I ve assumed a named JSONArray is a JSONObject and accessed the data from the server to populate an Android GridView   For what it is worth my method is   private String   fillTable  JSONObject jsonObject        String   dummyData   new String     1    2    3    4    5    6    7   1    2    3    4    5    6    7   1    2    3    4    5    6    7        if  jsonObject    null           ArrayList lt String gt  data   new ArrayList lt String gt           try                jsonArray looks like    everything                          JSONArray jsonArray   jsonObject getJSONArray   everything               int number   jsonArray length      How many rows have got from the database            Log i  Constants INFORMATION   Number of ows returned       Integer toString  number                           Array elements look like this               success  1  error  0  name   English One   owner   Tutor   description   Initial Alert   posted   2013-08-09 15 35 40             for  int element   0  element  lt  number  element         visit each element              JSONObject jsonObject local   jsonArray getJSONObject  element                     Overkill on the error success checking              Log e  JSON SUCCESS   Integer toString  jsonObject local getInt Constants KEY SUCCESS                    Log e  JSON ERROR   Integer toString  jsonObject local getInt Constants KEY ERROR                       if   jsonObject local getInt  Constants KEY SUCCESS     Constants JSON SUCCESS                        String name   jsonObject local getString  Constants KEY NAME                       data add  name                       String owner   jsonObject local getString  Constants KEY OWNER                       data add  owner                       String description   jsonObject local getString  Constants KEY DESCRIPTION                       Log i   DESCRIPTION   description                       data add  description                        String date   jsonObject local getString  Constants KEY DATE                       data add  date                                      else                       for  int i   0  i  lt  4  i                               data add   ERROR                                                                JSON object is null   catch   JSONException jsone          Log e   JSON EXCEPTION   jsone getMessage                dummyData   data toArray  dummyData          return dummyData

User · Answer

JSONArray has a constructor which takes a String source  presumed to be an array    So something like this  JSONArray array   new JSONArray yourJSONArrayAsString

User · Answer

Here is a solution under 19API lvl    First of all  Make a Gson obj  --  Gson gson   new Gson    Second step is get your jsonObj as String with StringRequest instead of JsonObjectRequest  The last step to get JsonArray      YoursObjArray   yoursObjArray   gson fromJson response  YoursObjArray   class

[android] Get JSONArray without array name?

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