How to display/request JSON Object using Android Volley?

Question

I\'m having a problem in Android Studio on how to request JSON Object.

My Logcat can only print String onResponse but not JSONObject value. I\'m having a problem in lin

Answer 1

Your requesting a JsonObject? You seem to have a grasp on StringRequest, so ill keep it simple. Change your StringRequest to a JsonObjectRequest.

Answer 2

Problem :

As you can see in your logcat the response that you get from the server is success_access{"access":"PA001","password":"123","fullname":"ARCADE","branch":"HQ","section":"HQ"}

First, this is not a valid JSON. Also, that is the value of the response variable. Now, your response.equals("success_access") will never return true, and hence the code control will never enter the if block.

Solution :

Ideally, there should be no extra string like success_access, insted your response should be a JSON object ALWAYS containing one specified field (the result feild for example). To show success, your JSON will look something like :

{
    result : "success_access",
    /* other parameters down here */
} 

And in case of failure :

{
    result : "access_failed"
} 

And then your code should convert the respose string into a JSON (your server code should make sure that it returns a valid JSON always) check for the value of the result field and proceed further.

Quick Fix :

Change your code to :

  ....
  Log.e(TAG, "Response is = " + response);
  String result = response.replace("{.*}","");
  String jsonString = response.replace(result, "");

  if(result.equals("success_access")){
    try {
            JSONObject jsonObject = new JSONObject(jsonString);
    ....

Answer 3

Try this.

In the AccessActivity

 Intent intent = new Intent(AccessActivity.this, NextActivity.class);
 intent.putExtra("access",   accessdb);
 intent.putExtra("password", passworddb);
 intent.putExtra("fullname", fullnamedb);
 intent.putExtra("branch",   branchdb);
 intent.putExtra("section",  sectiondb);
 AccessActivity.this.startActivity(intent);

change

LoginActivity.this.startActivity(intent);

to

AccessActivity.this.startActivity(intent);

In the NextActivity

Intent intent = getIntent();
String access = intent.getStringExtra("access");
String password = intent.getStringExtra("password");
String fullname = intent.getStringExtra("fullname");
String branch = intent.getStringExtra("branch");
String section = intent.getStringExtra("section");

Edited

change

if(response.equals("success_access")){
}

to

if(response.contains("success_access")){
}

And according to your code. You need to make sure that your current Activity is com.apps.test.AccessActivity or com.apps.test.AccessActivity.

Edited

change to

if (response.contains("success_access")) {
        String res = response.substring(response.indexOf("{"));
        try {
            JSONObject jsonObject = new JSONObject(res);
            final String accessdb = jsonObject.getString("access");
            final String passworddb = jsonObject.getString("password");
            final String fullnamedb = jsonObject.getString("fullname");
            final String branchdb = jsonObject.getString("branch");
            final String sectiondb = jsonObject.getString("branch");
            Log.e("Tag", accessdb);

        } catch (JSONException e) {
            e.printStackTrace();
        }
 }