Parse simple JSON Array without key

Question

I need help with parsing simple JSONArray like this:

{
 "text":[
  "Morate popuniti polje tekst."
 ]
} 

I have tried with this but I failed:

 if (response_str != null) {
    try {
        JSONObject jsonObj = new JSONObject(response_str);
        JSONArray arrayJson = jsonObj.getJSONArray("text");

        for (int i = 0; i < arrayJson.length(); i++) {
            JSONObject obj = arrayJson.optJSONObject(i);
            error = obj.getString("text");
        }
    }

Answer 1

You have a JSONArray text. There is no array of JSONObject.

{  // Json object node 
"text":[ // json array text 
 "Morate popuniti polje tekst." // value
]
} 

Just use

for (int i = 0; i < arrayJson.length(); i++) {
  String value =  arrayJson.get(i);
}

In fact there is no need for a loop as you have only 1 element in json array

You can just use

String value = (String) arrayJson.get(0); // index 0 . need to cast it to string

Or

String value = arrayJson.getString(0); // index 0

http://developer.android.com/reference/org/json/JSONArray.html

public Object get (int index)

Added in API level 1
Returns the value at index.

Throws
JSONException   if this array has no value at index, or if that value is the null reference. This method returns normally if the value is JSONObject#NULL.
public boolean getBoolean (int index)

getString

public String getString (int index)

Added in API level 1
Returns the value at index if it exists, coercing it if necessary.

Throws
JSONException   if no such value exists.

Answer 2

Your JSONArray is an array of Strings. You can iterate this way

JSONObject jsonObj = new JSONObject(response_str);
JSONArray arrayJson = jsonObj.getJSONArray("text");

for (int i = 0; i < arrayJson.length(); i++) {
    String error = arrayJson.getString(i);
    // Do something with each error here
}

Answer 3

Try this:

JSONObject jsonObject = new JSONObject(response_str);
JSONArray arrayJson = jsonObject.getJSONArray("text");
String theString = arrayJson.getString(0);