How to Parse a JSON Object In Android

Question

I am having some problems pulling values from a JSON object  Here is my code  try       JSONObject json   new JSONObject result       JSONObject json2   json getJSONObject  results        test   json2 getString  name           catch  JSONException e        e printStackTrace        test is declared as a String  When the code runs it is showing null  If I hover over json2 in debug mode I can see all the values and names within the object   I also tried   test   json2 length      This returned test   0  Even when I hover over the json2 object I can read the values within the object    Here is an example of a JSON string I will use          caller   getPoiById        results                  indexForPhone  0           indexForEmail   NULL            indexForHomePage   NULL            indexForComment   NULL            phone   05137-930 68            cleanPhone   0513793068            internetAccess   2            overnightStay   2            wasteDisposal   2            toilet   2            electricity   2            cran   2            slipway   2            camping   2            freshWater   2            fieldNamesWithValue    phone             fieldNameTranslations     Telefon             id   1470            name   Marina Rasche Werft GmbH  amp  Co  KG            latitude   52 3956107286487            longitude   9 56583023071289

User · Answer

JSONArray jsonArray   new JSONArray yourJsonString    for  int i   0  i  lt  jsonArray length    i           JSONObject obj1   jsonArray getJSONObject i        JSONArray results   patient getJSONArray  results         String indexForPhone    patientProfile getJSONObject 0  getString  indexForPhone         Change to JSONArray  then convert to JSONObject

User · Answer

Take a look at http   developer android com reference org json JSONTokener html  This might fix your issue

User · Answer

In the end I solved it by using JSONObject get rather than JSONObject getString and then cast test to a String    private void saveData String result        try           JSONObject json   JSONObject  new JSONTokener result  nextValue            JSONObject json2   json getJSONObject  results            test    String  json2 get  name          catch  JSONException e            e printStackTrace

User · Answer

In your JSON format  it do not have starting JSON object  Like           info           lt  -- this is starting JSON object -- gt                     caller   getPoiById            results                          indexForPhone  0               indexForEmail   NULL                                                    Above Json starts with info as JSON object  So while executing    JSONObject json   new JSONObject result         create JSON obj from string JSONObject json2   json getJSONObject  info          this will return correct   Now  we can access result field    JSONObject jsonResult   json2 getJSONObject  results    test   json2 getString  name       returns  Marina Rasche Werft GmbH  amp  Co  KG    I think this was missing and so the problem was solved while we use JSONTokener like answer of yours   Your answer is very fine  Just i think i add this information so i answered  Thank you

[android] How to Parse a JSON Object In Android

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