Android: Decoding JSON

Question

[{"placeID":"p0001","placeName":"INTI International University","placeType":"Education","placeLat":"2.813997","placeLng":"101.758229","placePict":""},{"placeID":"p0002","placeName":"Nilai International College","placeType":"Education","placeLat":"2.814179","placeLng":"101.7700107","placePict":""}]

How do I decode the JSON sent from my PHP script on Android?

• Andy: p-xr.com/…

Answer 1

please try this

 String s = "[{\"placeID\":\"p0001\",\"placeName\":\"INTI International University\",\"placeType\":\"Education\","
 + "\"placeLat\":\"2.813997\",\"placeLng\":\"101.758229\",\"placePict\":\"\"},"
 + "{\"placeID\":\"p0002\",\"placeName\":\"Nilai International College\",\"placeType\":\"Education\",\"placeLat\":\"2.814179\",\"placeLng\":\"101.7700107\",\"placePict\":\"\"}]";
 ArrayList<String> arrplaceID = new ArrayList<String>();
 ArrayList<String> arrplaceName = new ArrayList<String>();
 try {
 JSONArray arr = new JSONArray(s);
 for (int i = 0; i < arr.length(); i++) {
 JSONObject jsonObject = arr.getJSONObject(i);
 arrplaceID.add(jsonObject.optString("placeID"));
 arrplaceName.add(jsonObject.optString("placeName"));
 }
 } catch (JSONException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 for (int i = 0; i < arrplaceID.size(); i++) {
 Log.e("arr[" + i + "] place Name", arrplaceName.get(i));
 }

• Ramesh Solanki: let me know if u have any doubt

Answer 2

What is the problem in this Please Read this tutorial for parsing JSON it might be helpful in future also.json parsing link

Answer 3

Follow below points.

1) it seems the response you are getting is Json Array. so create one json array by response string.

 JSonArray jArray = new JsonArray(responseString);

2) now you have your response in jArray. now iterate a loop and take json object from JsonArray, in your case you have two json objects.

 for(i,i<jArray.size,i++)
 {
 JsonObject obj=jArray.get(i);
 // here you got your first entry in jsonObject. 
 // nor use this obj according to ur need. you can say obj.getString("placeID");
 // and so on.
 }

refer this to understand more on json link

Answer 4

use JSONArray class:

JSONArray jsonplaces = new JSONObject(stringPlaces);

then your able to iterate throught array by using for-loop:

for (int i = 0; i < jsonplaces.length(); i++) {
 JSONObject jsonplace = (JSONObject) jsonplaces.get(i);
 //read items, for example:
 String placeName = jsonplace.getString("placeName");
}

• Veikko Karsikko: I had misspelling on my code, it should be jsonplace.getString("placeName"); instead of jsonplaces.getString("placeName")