how to parse JSONArray in android

Question

I want to read this JSON lines but because it start with JSONArray i m a little confused      abridged cast                                    name    Jeff Bridges                    id    162655890                    characters                          Jack Prescott                                                                  name    Charles Grodin                    id    162662571                    characters                          Fred Wilson                                                                  name    Jessica Lange                    id    162653068                    characters                          Dwan                                                                  name    John Randolph                    id    162691889                    characters                          Capt  Ross                                                                  name    Rene Auberjonois                    id    162718328                    characters                          Bagley                                               i just need to use the  name  and save all as one String   the string value will be   Jeff Bridges Charles Grodin Jessica Lange John Randolph Rene Auberjonois    this is my code   try             JSON is the JSON code above          JSONObject jsonResponse   new JSONObject JSON           JSONArray movies   jsonResponse getJSONArray  characters            String hey   movies toString            catch  JSONException e               TODO Auto-generated catch block         e printStackTrace

User · Accepted Answer

If you re after the  name   why does your code snippet look like an attempt to get the  characters    Anyways  this is no different from any other list- or array-like operation  you just need to iterate over the dataset and grab the information you re interested in  Retrieving all the names should look somewhat like this   List lt String gt  allNames   new ArrayList lt String gt      JSONArray cast   jsonResponse getJSONArray  abridged cast    for  int i 0  i lt cast length    i          JSONObject actor   cast getJSONObject i       String name   actor getString  name        allNames add name        typed straight into the browser  so not tested

User · Answer

getJSONArray attrname  will get you an array from the object of that given attribute name in your case what is happening is that for     abridged cast    name   blah        its trying to search for a value  characters    but you need to get into the array and then do a search for  characters   try this   String json    abridged cast     name   JeffBridges   id   162655890   characters    JackPrescott      name   CharlesGrodin   id   162662571   characters    FredWilson      name   JessicaLange   id   162653068   characters    Dwan      name   JohnRandolph   id   162691889   characters    Capt Ross      name   ReneAuberjonois   id   162718328   characters    Bagley             JSONObject jsonResponse      try           ArrayList lt String gt  temp   new ArrayList lt String gt             jsonResponse   new JSONObject json           JSONArray movies   jsonResponse getJSONArray  abridged cast            for int i 0 i lt movies length   i                 JSONObject movie   movies getJSONObject i               JSONArray characters   movie getJSONArray  characters                for int j 0 j lt characters length   j                     temp add characters getString j                                    Toast makeText this   Json    temp  Toast LENGTH LONG  show          catch  JSONException e               TODO Auto-generated catch block         e printStackTrace            checked it

User · Answer

Here is a better way for doing it  Hope this helps  protected void onPostExecute String result                    Log v TAG     result                     if   result equals                                Set up variables for API Call                     ArrayList lt String gt  list   new ArrayList lt String gt                          try                           JSONArray jsonArray   new JSONArray result                            for  int i   0  i  lt  jsonArray length    i                                   list add jsonArray get i  toString                                 end for                       catch  JSONException e                            Log e TAG   onPostExecute  gt  Try  gt  JSONException   gt      e                           e printStackTrace                                                adapter   new ArrayAdapter lt String gt  ListViewData this  android R layout simple list item 1  android R id text1  list                       listView setAdapter adapter                       listView setOnItemClickListener new OnItemClickListener                              Override                         public void onItemClick AdapterView lt   gt  parent  View view  int position  long id                                    ListView Clicked item index                             int itemPosition   position                                  ListView Clicked item value                             String itemValue    String  listView getItemAtPosition position                                   Show Alert                             Toast makeText  ListViewData this   Position      itemPosition      ListItem       itemValue  Toast LENGTH LONG  show                                                                           adapter notifyDataSetChanged

[java] how to parse JSONArray in android

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