hasnain_ahmad hasnain_ahmad - 2 months ago 21
Android Question

Getting the value of JSONObject in android using volley library

I want to get the value of JSONObject in android using volley library.

Here is my MainActvity.java code.

String url = "http://someexample.com/signin.php";
StringRequest postRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response).getJSONObject("type");
String myObjAsString = jsonResponse.toString();

mTV.setText(myObjAsString.toString());

} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
}
) {
@Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
// the POST parameters:
params.put("email", "example@outlook.com");
params.put("password", "********");
return params;
}
};
Volley.newRequestQueue(this).add(postRequest);


Here is my web service response.

{
"type":"1",
"data":{
"userID":"197",
"name":"Hasnain",
"email":"example@outlook.com",
"paymentstatus":1
},
"title":"Message",
"message":"User loged in successfully",
"_explicitType":null
}


Here is my error stack .

09-08 11:22:21.068 4705-4825/com.example.alphabooksingintest D/OpenGLRenderer﹕ Enabling debug mode 0
09-08 11:22:21.135 4705-4742/com.example.alphabooksingintest W/art﹕ Suspending all threads took: 18.063ms
09-08 11:22:21.212 4705-4705/com.example.alphabooksingintest W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
09-08 11:22:30.150 4705-4742/com.example.alphabooksingintest W/art﹕ Suspending all threads took: 16.658ms
09-08 11:22:30.918 4705-4705/com.example.alphabooksingintest W/System.err﹕ org.json.JSONException: Value 1 at type of type java.lang.String cannot be converted to JSONObject
09-08 11:22:30.926 4705-4705/com.example.alphabooksingintest W/System.err﹕ at org.json.JSON.typeMismatch(JSON.java:100)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at org.json.JSONObject.getJSONObject(JSONObject.java:613)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.example.alphabooksingintest.MainActivity$1.onResponse(MainActivity.java:42)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.example.alphabooksingintest.MainActivity$1.onResponse(MainActivity.java:38)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:30)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at android.os.Handler.handleCallback(Handler.java:739)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:95)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at android.os.Looper.loop(Looper.java:135)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5312)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at java.lang.reflect.Method.invoke(Native Method)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:372)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901)
09-08 11:22:30.927 4705-4705/com.example.alphabooksingintest W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)
09-08 11:23:37.309 4705-4742/com.example.alphabooksingintest W/art﹕ Suspending all threads took: 5.080ms


I want to get the value of “type” object from the response.

Answer

Error:

org.json.JSONException: Value 1 at type of type java.lang.String cannot be converted to JSONObject

From error log i can see that you are trying to convert JSONObject into String so you are getting JSONException.

You need to get type String value from JSONObject this way.

Try this code:

JSONObject jsonResponse = new JSONObject(response);
String myObjAsString = jsonResponse.getString("type");

instead of

JSONObject jsonResponse = new JSONObject(response).getJSONObject("type");
String myObjAsString = jsonResponse.toString();

I hope it helps!