How to implement a login in Android using Volley? -

i have loginactitvity 2 textfields username , password , login-button. when user presses button, app starts async task. async task implements volleyhandler. checks if login parameters correct , fetches user data (using volley , json). while doing this, progressdialog appears. when async task finished, starts intent mainactivity in onpostexecute method.

now question: idea make volley-requests in async task, or have better solution?

thanks.

you cannot use asynctask. volley care it. can use callback work data , ui. looks this:

public class loginactivity extends singlepaneactivity implements downloadcallback {  //...   public void sendrequest(){   downloader download = new download(this);   downloader.download(username, password);   progresbar.show(); }  public void requestfinish(){  progersbar.dismis();  //... continue   } } 

callback:

public interface downloadcallback {     void requestfinish();  } 

in class downloader

private requestqueue requestqueue; downloadcallback mcallback;  public void downloader(downloadcallback callback){    mcallback = callback;    requestqueue = volley.newrequestqueue(mcontext);    initvolleylisteners(); }  private void initvolleylisteners() {      msuccesslistener = new response.listener<jsonobject>() {         @override         public void onresponse(jsonobject response) {            mcallback.requestfinish();         }     };      merrorlistener = new response.errorlistener() {         @override         public void onerrorresponse(volleyerror error) {              mcallback.requestfinish();         }     };  public void download(string user, string pass){      jsonobjectrequest jsonobjectrequest = new jsonobjectrequest(request.method.post, url, createjson(user, pass), msuccesslistener , merrorlistener ) {         //header send json server         @override         public map<string, string> getheaders() throws authfailureerror {             hashmap<string, string> headers = new hashmap<string, string>();             headers.put("content-type", "application/json; charset=utf-8");             return headers;         }     };     requestqueue.add(jsonobjectrequest ); } 

and 1 point. don't send user name in json. send param in header. use application/x-www-form-urlencoded , set pass username params in header.

update: work. sorry wrote in hurry. article how callback work