trying to get json object from php to android - php

Question

i am trying to parse an array from my php script to my android app.
my android code
public void func4(View view)throws Exception
{final String TAG_CONTACTS = "response";
AsyncHttpClient client = new AsyncHttpClient();
RequestParams rp = new RequestParams();
rp.put("pLat", "SELECT officer_name FROM iwmp_officer");
client.post("http://10.0.2.2/conc3.php", rp, new AsyncHttpResponseHandler() {
public final void onSuccess(String response) {
// handle your response here
ArrayList<String> User_List = new ArrayList<String>();
try
{
JSONArray jArray = new JSONArray(response.toString());
// JSONObject jsonObject = new JSONObject(response);
for (int i = 0; i < jArray.length(); i++)
{
JSONObject json_data = jArray.getJSONObject(i);
User_List.add(json_data.getString(TAG_CONTACTS));
String s = User_List.get(0).toString();
tx.setText(s);
}
}
catch (Exception e)
{
tx.setText((CharSequence) e);
}
}
#Override
public void onFailure(Throwable e, String response) {
// something went wrong
tx.setText(response);
}
});
}
now i am sending or ECHOing a jSON array from my php code, which is being read into the response object of string type.
<?php
$cars=array("Volvo","BMW","Toyota");
$arrlength=count($cars);
echo json_encode($cars);
exit;
?>
now error i am getting is org.json.JSONException: Value Volvo at 0 of type java.lang.String cannot be converted to JSONObject
i think thar onSuccess func accept string parameter and i m sending json as a parameter to it.. thats what causing problem please help.

Answer 1

Try Like this
JSONObject json = jsonParser.makeHttpRequest(url_get_contact, "GET", params);
Log.d("All Groups: ", json.toString());
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
groups = json.getJSONArray(TAG_GROUP);
System.out.println("Result Success+++"+groups);
for (int i = 0; i < groups.length();i++) {
JSONObject c = groups.getJSONObject(i);
String name = c.getString(TAG_CONTACTS);
System.out.println("Checking ::"+name);
namelist.add(name); // namelist is ur arraylist
}
}else {
showAlert();
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
Let me know ur problem solved or not...

Answer 2

Answer found, i guess i was trying to convert an already String converted object from json into string again.
well to be precise i ust deleted JSONObject json_data = jArray.getJSONObject(i);
and it worked for me. Now i am able to save all values in my array.