Parse JSON string from remote URL in Android

Question

Well I'm new to Android. I'm getting a JSON string from a remote URL.

[{"key":"myString1","val":"myValue1"},{"key":"myString2","val":"myValue2"},{"key":"myString3","val":"myValue3"},{"key":"myString4","val":"myValue4"},{"key":"myString5","val":"myValue5"}]

I just need to parse this JSON string & display all key-val pair. I tried something like below from one of the tutorial.

        JSONArray jArray = new JSONArray(str);

        json = jArray.getJSONObject(0); //This will take first pair.

But I don't know the syntax for iterating through whole json object. Any help would be appreciated. Thanks in Advance.

possible duplicate of Parsing JSON from URL

Confuse
– Confuse

2014-09-15 14:57:22 +00:00
Commented Sep 15, 2014 at 14:57 — Confuse
– Confuse, Commented Sep 15, 2014 at 14:57

Alexander Zhak · Accepted Answer · 2014-09-15 13:54:46Z

1

There's nothing special in it. You do it like iterating any other array. Let's say you have two String arrays to be filled with values: String[] mKey, mValue

Reading from JSON array will be like:

for (int i = 0; i < array.length(); i++) {
    JSONObject object = array.getJSONObject(i);
    mKey[i] = object.getString("key");
    mValue[i] = object.getString("val");
}

answered Sep 15, 2014 at 13:54

Alexander Zhak

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2 Comments

Jenson M John Over a year ago

How to assign assign those value to TextView defined already? Can I assign values within loop to TextView ? Sorry, I'm newbie in Android Programming.

Alexander Zhak Over a year ago

myTextView.setText(); better set TetView text outside the loop. You can use StringBuilder to generate a string with key-value pairs, then set TextView text.

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