Develop Reference

How to read this JSON

String json =
[
{"a":{"aa":"string","ab":"string"} },
{"b":{"ba":"string","bb":"string"} }
]
I am trying to parse this data using JsonObject.
When i use this code :
JSONStringer Js= new JSONStringer(json);
Log.d("json", ""+Js);
it gives me this : (the first line of json but i want all data)
{"a":{"aa":"string","ab":"string"} }
How can I read this with Android ?

It is a JsonArray not a simple JsonObject
try this:
JSONArray a = new JSONArray(json);
for (int i = 0; i < a.length(); i++) {
JSONObject row = a.getJSONObject(i);
Log.d("json", ""+row);
}

Actually, this JSON is kind of weird, as it wraps the array objects into one additional object each ("a" and "b"), which will make it hard to parse. It should look like this:
String json = [ {"name":"a","aa":"string","ab":"string"},
{"name":"b","ba":"string","bb":"string"} ]
And then you would parse it like this:
JSONArray root = new JSONArray(jsonString); //this is the above string
for(int i = 0; i < root.length(); i++){
JSONObject current = root.getJSONObject(i);
//Do the parsing here
}

parsing does not work json Android

parsing does not work json Android
parsing does not work json Android
{
"group_name":"МБА-14",
"days":[
{
"weekday":1,
"lessons":[
{
"subject":"Научно-исследовательский семинар",
"type":0,
"time_start":"17:10",
"time_end":"18:30",
"time_number":6,
"parity":1
}
]
}
]
}
I need to get the value weekday. This is my code:
JSONObject jsonObject=new JSONObject(str);
JSONObject jsonObject1=jsonObject.getJSONObject("weekday");
Log.e("aaaa", jsonObject1.toString() );

JSONArray days = jsonObject.getJSONArray("days");
JSONObject oneDay = days.getJSONObject(0);
int weekday = oneDay.getInt("weekday");

If your "str" variable contains this,
then parse like
JSONObject jsonObject=new JSONObject(str);
JSONArray jArray = jsonObject.getJSONArray("days");
String weekday = (jArray .getJSONObject(0)).getString("weekday");

Populating Spinner data from json

I have some problem... when i try to populating spinner data from json
this, my json data :
parse bank and product work normally
Bank.
Product.
Provider no data
Log.
what should i do to parse provider to android spinner ?

Try this..
provider is inside product array
"product": [ // JSONArray
{ // JSONObject
"id": "1",
"value": "PULSA",
"name": "Pulsa Telpon",
"provider": [ // JSONArray
Code
try {
JSONObject jsonObj = new JSONObject(json);
if (jsonObj != null) {
JSONObject product_obj = jsonObj.getJSONArray("product").getJSONObject(0);
JSONArray categories = product_obj
.getJSONArray("provider");
for (int i = 0; i < categories.length(); i++) {
JSONObject catObj = (JSONObject) categories.get(i);
Category cat = new Category(catObj.getInt("id"),
catObj.getString("name"));
categoriesList.add(cat);
}
}
} catch (JSONException e) {
e.printStackTrace();
}

Here you are trying to fetch provider jsonArray from the jsonobject formed using the json response json.
JSONArray categories = jsonObj.getJSONArray("provider");
however the provider jsonArray is not in the base jsonobject, but it is in the product jsonArray. That is why you are not getting any data for provider.
Solution :
first get the product jsonarray from the base jsonobject. Then extract the provider jsonarray for each product in loop.
Algorithm or Flow:
JSONObject jsonObj = new JSONObject(json); // Base json object
JSONArray bankArray = jsonObj.getJSONArray("bank"); // Bank json array
JSONArray productArray = jsonObj.getJSONArray("product"); // Product json array
// no. of items in product
int arrayLength = productArray.length();
for (int i = 0; i < arrayLength; i++) {
// get single product object from array
JSONObject singleProductObject = productArray
.getJSONObject(i);
// Get the provider array for every product
JSONArray providerArray = singleProductObject.getJSONArray("provider");
}
This way you will get the provider data.
Hope it helps you.

What I understand your Json object contains to memeber that is a array bank and product
provider is inner array od product.
I am not sure if you take care of this
try this only for single product
JSONArray categories = jsonObj.getJSONArray("product")[0].getJSONArray("provider");

Convert JSON string in array format into an array in java

I'm trying to take the following string that I got as a json object:
[
{
"id": "picture1",
"caption": "sample caption",
"picname": "sample picture name"
}
]
and turn it into a array so I can populate a list
I've tried turning it into a jsonarray by doing this:
JSONArray myjsonarray = myjson.toJSONArray(string_containing_json_above);
but that didn't seem to work.
==============
Here is full code with the working solution
myjson = new JSONObject(temp);
String String_that_should_be_array = myjson.getString("piclist");
JSONArray myjsonarray = new JSONArray(String_that_should_be_array);
For(int i = 0; i < myjsonarray.length(); i++){
JSONObject tempJSONobj = myjsonarray.getJSONObject(i);
showToast(tempJSONobj.get("caption").toString());
}
temp is the json from the server

Issue is here:
JSONArray myjsonarray = myjson.toJSONArray(temparray);
Solution:
JSONArray myjsonarray = new JSONArray(myJSON);
// myJSON is String
Now here you are having JSONArray, iterate over it and prepare ArrayList of whatever types of you want.

here you get JSONArray so change
JSONArray myjsonarray = myjson.toJSONArray(temparray);
line as shown below
JSONArray jsonArray = new JSONArray(readlocationFeed);
and after
JSONArray jsonArray = new JSONArray(readlocationFeed);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject explrObject = jsonArray.getJSONObject(i);
explrObject.getString("caption");
}

JSONArray isn't working because the JSON you provided is not an array. You can read more about JSON syntax here: http://www.w3schools.com/json/json_syntax.asp
In the meantime, you could manually create your array by paring the JSON one string at a time.
JSONObject strings = new JSONObject(jsonString);
String array[] = new String[5];
if (jsonString.has("id"){
array[0] = jsonString.getString("id");
}
if (jsonString.has("caption"){
array[1] = jsonString.getString("caption");
}
...
etc.

Json data extracting in android

i want to extract the given json arry in android,
[{"Outofserviceday":{"outofservice":"2013-02-22"}},
{"Outofserviceday":{"outofservice":"2013-02-27"}},
{"Outofserviceday":{"outofservice":"2013-02-28"}}]
i have the code for extracting the json data like given below
[{"Requestcard":{"id":"994","userprofile_id":"14","userprofile_name":"Syed
Imran","company_name":"DLF Akruti Park, Hinjewadi, Pune,
Maharashtra","sex":"male","travel_date":"2013-02-12"}}]
in this case we can retrive the json boject using the code
JSONObject menuObject = json_data.getJSONObject("Requestcard");
and retrieve each element by
requestid= menuObject.getString("id");
But in the first case how we identify each Outofserviceday in the json array ? and How extract each data ???

you can do something like below, can create jsonArray from string json data and then can extracts json objects in a loop or so.
String json =" [{\"Outofserviceday\":{\"outofservice\":\"2013-02-22\"}}]"; //json-data which is basically a json array
JSONArray jArray = new JSONArray(json); / creating an jsonarray
for (int i = 0; i < jArray.length(); i++) {
// you can have jsonObject from json array here in the loop
}

Try this:
JSONObject json = new JSONObject(result);
JSONArray json1= json.getJSONArray("data");
if (json1.length()!=0) {
for (int i = 0; i < json1.length(); i++) {
String name = json1.getJSONObject(i).getString("name");
}
}

With the help of below code you can retrieve the value of outofservice
JSONArray jArray = new JSONArray(your data);
for (int i = 0; i < jArray.length(); i++) {
JSONObject jOutOfServiceDay = jArray.getJSONObject(i);
JSONObject jobj = jOutOfServiceDay.getJSONObject("Outofserviceday");
Log.i("Required data is:", "" + jobj.getString("outofservice"));
}