Develop Reference

Android Json Handling issue

I want to display updated_at data to user only if value of password in folder Array is null.
JSONArray jsonArray = object.getJSONArray("data");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject dataa = jsonArray.getJSONObject(i);
JSONArray jsonArray2 = dataa.getJSONArray("folder");
for (int i2 = 0; i2 < jsonArray.length(); i2++)
{
JSONObject dataa2 = jsonArray2.getJSONObject(i2);
String password = dataa2.getString("password");
if (password.equals("null") || password.equals(null))
{
//Display data
}
else
{
// dont Display data
}
}
Is there a way to do it?

Rectify your inner loop condition section.
JSONArray jsonArray2 = dataa.getJSONArray("folder");
for (int i2 = 0; i2 < jsonArray2.length(); i2++)
{
JSONObject dataa2 = jsonArray2.getJSONObject(i2);

why it only shows the latest data from the json array

These are my JSON data:
[
{"haberBaslik":"ekrem kimdir?"},
{"haberBaslik":"doğa kimdir?"},
{"haberBaslik":"biz kimiz?"},
{"haberBaslik":"fatih naptı?"}
]
and this code only shows the latest data, but I need to show my all data
JSONArray jsonarray = new JSONArray(s);
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonobject = jsonarray.getJSONObject(i);
String Haberbaslik = jsonobject.getString("haberBaslik");
tv1.setText(Haberbaslik);
}

JSONArray jsonarray = new JSONArray(s);
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject jsonobject = jsonarray.getJSONObject(i);
String Haberbaslik = jsonobject.getString("haberBaslik");
tv1.setText(tv1.getText()+ " "+Haberbaslik);
}

Read JSON array without curly brackets

I'm trying to get the values from array in a JSON file. Array only has a square brackets and not curly brackets something like this:
"{"name_of_the_array: ["value_1", "value_2"]"}"
I found here some answer but it did not work for me the code of the answer is:
JSONArray array = new JSONArray("array_name");
for (int i = 0; i < array.length(); i++) {
str = array.get(i).toString();
list.add(str);
}
the list is ArrayList list.

{} denotes a JSONObject so you have to create a JSONObject first. [] denotes a JSONArray. You have to fetch the JSONArray from JSONObject with key.
Use this code
JSONObject jsonObject = new JSONObject(jsonString);
JSONArray array = jsonObject.getJSONArray("array_name");
for (int i = 0; i < array.length(); i++) {
str = array.get(i).toString();
list.add(str);
}
Check this and this for parsing

try something like this
JSONArray array = new JSONArray("array_name");
for (int i = 0; i < array.length(); i++) {
str = array.getJSONObject(i).getString("string_name");
list.add(str);
}
or you can try this too
JSONArray array = new JSONArray("array_name");
for (int i = 0; i < array.length(); i++) {
str = array.getString("string_name");
list.add(str);
}

getJSONArray inside another json array

I have the following JSON struncture:
{
"schedule":{
"day":[
{
"id":"Monday",
"items":[
{
},
{
}
]
},
{
"id":"Tuesday",
"items":[
{
},
{
}
]
}
]
}
}
And what I basically want to do is reach the items array inside the day array which is inside the schedule object.
But whenever I try to get the second JSON array, I get getJSONArray
(int) in JSONArray cannot be applied to (java.lang.String).
JSONObject baseJsonResponse = new JSONObject(dayJSON);
JSONArray dayArray = baseJsonResponse.getJSONObject("schedule").getJSONArray("day").getJSONArray("items");

You should use Two for loop respect to JSONArray.
JSONObject obj = new JSONObject(success);
JSONObject JOBJ_Schedule = obj.getJSONObject("schedule");
JSONArray schedule_Array = JOBJ_Schedule.getJSONArray("day");
for (int i = 0; i < schedule_Array.length(); i++)
{
JSONObject jOBJ = schedule_Array.getJSONObject(i);
JSONArray jArray = jOBJ.getJSONArray("items");
for (int j = 0; j < jArray.length(); j++)
{
JSONObject jOBJNEW = jArray.getJSONObject(j);
}
}

Looks like day is a list of objects. So basically, you'd have to do something like getJSONArray("day").get(0).getJSONArray("items").

you can try this
try {
JSONObject baseJsonResponse = new JSONObject("dayJSON");
JSONObject schedule= baseJsonResponse.getJSONObject("schedule");
JSONArray day=schedule.optJSONArray("day");
for (int i=0; i<day.length(); i++) {
JSONObject data = day.getJSONObject(i);
String id = data.getString("id");
JSONArray items = data.getJSONArray("items");
for (int j = 0; j < items.length(); j++) {
JSONObject data2 = day.getJSONObject(i);
String str = data2.getString("YOurkey");
Log.e("categories", str);
}
}
} catch (JSONException e) {
e.printStackTrace();
}

According to the JSON you provided, baseJsonResponse.getJSONObject("schedule").getJSONArray("day") will return you a JSONArray instead of JSONObject.
There is a "item" JSONArray inside each "day" JSONObject. < May be this is the reason.
You can try
for(int i = 0 ; i < baseJsonResponse.getJSONObject("schedule").getJSONArray("day").length() ; i++){
JSONArray itemArray = baseJsonResponse.getJSONObject("schedule").getJSONArray("day")
.getJSONObject(i).getJSONArray("items");
}

Issue ion parse JSON data in android

i want to parse data like below format in this format there are no any left side value for parse it so any idea how can i make it possible
JSON FORMAT
{
"labels": [
"Dec-2014",
"Jan-2015",
"Feb-2015",
"Mar-2015",
"Apr-2015",
"May-2015"
],
"data": [
0,
0,
0,
0,
0,
0
]
}

Try this
try {
JSONObject jsonObject = new JSONObject(
"{\"labels\": [\"Dec-2014\",\"Jan-2015\",\"Feb-2015\",\"Mar-2015\",\"Apr-2015\",\"May-2015\"],\"data\": [0,0,0,0,0,0]}");
JSONArray array = jsonObject.getJSONArray("labels");
for (int i = 0; i < array.length(); i++) {
String s = (String) array.get(i);
System.out.println(s);
}
JSONArray array2 = jsonObject.getJSONArray("data");
for (int i = 0; i < array2.length(); i++) {
String s = (String) array2.get(i);
System.out.println(s);
}
} catch (Exception e) {
}
Hope this will solve your problem!!!

You can get jsonData as follows.
JSONObject jsonObj=new JSONObject(urJson);
JSONArray labels=jsonObj.getJSONArray("labels");
ArrayList<String> lableList=new ArrayList<String>();
for (int i = 0; i < labels.length();i++)
{
lableList.add(labels.getString(i));
}
JSONArray data=jsonObj.getJSONArray("data");
ArrayList<String> dataList=new ArrayList<String>();
for (int i = 0; i < data.length();i++)
{
dataList.add(data.getString(i));
}

There are two array objects in your current Json, You can extract it as given below
// Data json array
JSONArray dataArry = obj.getJSONArray("genre");
ArrayList<String> data = new ArrayList<String>();
for (int j = 0; j < dataArry.length(); j++)
{
data.add((String) dataArry.get(j));
}
Same logic can be applied for labels too