Get JSON Data from URL Using Android?

Question

I am trying to get JSON data by parsing login url with username and password. I have tried by using below code but I can\'t get any responses. Please help me.

I am u

Answer 1

Here in this snippet, we will see a volley method, add below dependency in-app level gradle file

1. compile 'com.android.volley:volley:1.1.1' -> adding volley dependency.
2. implementation 'com.google.code.gson:gson:2.8.5' -> adding gson for JSON data manipulation in android.

Dummy URL -> https://jsonplaceholder.typicode.com/users (HTTP GET Method Request)

public void getdata(){
    Response.Listener response_listener = new Response.Listener() {
        @Override
        public void onResponse(String response) {
            Log.e("Response",response);
            try {
                JSONArray jsonArray = new JSONArray(response);
                JSONObject jsonObject = jsonArray.getJSONObject(0).getJSONObject("address").getJSONObject("geo");
                Log.e("lat",jsonObject.getString("lat");
                Log.e("lng",jsonObject.getString("lng");
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    };


    Response.ErrorListener response_error_listener = new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            if (error instanceof TimeoutError || error instanceof NoConnectionError) {
                //TODO
            } else if (error instanceof AuthFailureError) {
                //TODO
            } else if (error instanceof ServerError) {
                //TODO
            } else if (error instanceof NetworkError) {
                //TODO
            } else if (error instanceof ParseError) {
                //TODO
            }
        }
    };

    StringRequest stringRequest = new StringRequest(Request.Method.GET, "https://jsonplaceholder.typicode.com/users",response_listener,response_error_listener);
    getRequestQueue().add(stringRequest);
}   

public RequestQueue getRequestQueue() {
    //requestQueue is used to stack your request and handles your cache.
    if (mRequestQueue == null) {
        mRequestQueue = Volley.newRequestQueue(getApplicationContext());
    }
    return mRequestQueue;
}

Visit https://github.com/JainaTrivedi/AndroidSnippet-/blob/master/Snippets/VolleyActivity.java