Stevry Stevry - 1 year ago 117
Android Question

Get Specific Json Object based on textview

Hy Guys, I am newbie in android developers,
I need help to get Specific object based on text on textview and show it on another text view,

Here is my json data

"card_data": [{
"card_id": "123456",
"balance": "100000"
}, {
"card_id": "654321",
"balance": "50000"

For example on my TextView1 I have "123456",
how can I display "100000" on TextView2.

Thanks in advanced, and sorry for my bad English.

Answer Source

First create setter and getter for your json. See below code.

private class CardInfo
    private String cardId;
    private String balance;

    public CardInfo(String cardId, String balance) {
        this.cardId = cardId;
        this.balance = balance;

    public String getCardId() {
        return cardId;

    public String getBalance() {
        return balance;

Then create JsonParser for your Json Object and add json obj as a CardInfoObj in ArrayList.

private ArrayList<CardInfo> mList = new ArrayList<>();
private void jsonParser()

    try {
        JSONObject jsonObject = new JSONObject("{\n" +
                "\t\"card_data\": [{\n" +
                "\t\t\"card_id\": \"123456\",\n" +
                "\t\t\"balance\": \"100000\"\n" +
                "\t}, {\n" +
                "\t\t\"card_id\": \"654321\",\n" +
                "\t\t\"balance\": \"50000\"\n" +
                "\t}]\n" +
        JSONArray jsonArray = jsonObject.getJSONArray("card_data");
        for(int i=0;i<jsonArray.length(); i++)
            JSONObject user = jsonArray.getJSONObject(i);
            mList.add(new CardInfo(user.get("card_id").toString(), user.get("balance").toString()));
    } catch (JSONException e) {

Now In mList having cardId and balance for each json obj. now get cardinfo obj from mList.

private void setText()
    CardInfo cardInfo = mList.get(0);// get specfice obj based on your requirement.
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