CODEWITHSUNDEEP
androidjsonandroid-layout
Mehdi
Mehdi

Reputation: 181

Remove JSONobject from JSONarray in Android

I have Dynamic JSON String i want to remove the last JSON object from the JSONARRAY in android. here is my dynamic JSON String in android. My json string is

("{\"findAllUsersResponse\": "+arguments[0].toString()+"}");

    {
    "findAllUsersResponse": [
        {
            "id": "kicJw2whXyuGjbNo936L",
            "name": "Fghhjj",
            "udid": "2AA120E3-7478-4AD4-9C68-9C0920669B84"
        },
        {
            "id": "NEF45TWNI6-Uc_r7938R",
            "name": "ssss",
            "udid": "1DD083C2-7F1D-4BB3-9AB9-691A5FD251CC"
        },
        {
            "id": "xuXY7Ah2-O-jL4Zk939D",
            "name": "Test",
            "udid": "A892E0AB-6732-4F42-BEFA-3157315E9EE4"
        },
        {
            "id": "w1FnBz8B9ciWUzBk939k",
            "name": "Aditi",
            "udid": "A892E0AB-6732-4F42-BEFA-3157315E9EE4"
        }

    ]
}

Upvotes: 1

Views: 2678

Answers (3)

mohammedali sunasara
mohammedali sunasara

Reputation: 220

If your String is not going to change and you only want last object to be deleted use substring and create new string. 

 String finduserjson=  "{\"findAllUsersResponse\": "+arguments[0].toString()+"}");
    String t = finduserjson.substring(finduserjson.indexOf("{"), finduserjson.lastIndexOf(",{"));
    String j = "]}";
    finduserjson = t+j;

Cheers

Upvotes: 1

ZInj
ZInj

Reputation: 341

Was facing a similar problem. There are no methods in the JSONarray object to get what you want. You could make a function to remove it. Saw this solution somewhere.

   public static JSONArray remove(final int index, final JSONArray from) {
    final List<JSONObject> objs = getList(from);
    objs.remove(index);

    final JSONArray jarray = new JSONArray();
    for (final JSONObject obj : objs) {
        jarray.put(obj);
    }

    return jarray;
}

public static List<JSONObject> getList(final JSONArray jarray) {
    final int len = jarray.length();
    final ArrayList<JSONObject> result = new ArrayList<JSONObject>(len);
    for (int i = 0; i < len; i++) {
        final JSONObject obj = jarray.optJSONObject(i);
        if (obj != null) {
            result.add(obj);
        }
    }
    return result;
}

Cheers!

Upvotes: 1

Fahad Ishaque
Fahad Ishaque

Reputation: 1926

If you are using JSON rather than GSON or JACKSON, then you cannot call .remove() method because you would not find it there.

Best thing you can do is, re-create a new JSONArray and add required JSONObjects in it.

Upvotes: 0

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