java - How to send an Asynchronous POST request with a parameter in android? -

so have send asynchronous post request php sever. parameter “password” , value of “egot”. if successful return response , should display how long took. know have use asynctask how never done before in android , direction on how start or nice. please me out. code following. got far

     public class pingserveractivity extends activity {       private button btn6;     //private edittext value;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_ping_server);      btn6 = (button) findviewbyid(r.id.btn_6);     //value = (edittext) findviewbyid(r.id.textv5);      pingbutton();  }  public void pingbutton() {      btn6.setonclicklistener(new onclicklistener() {          @override         public void onclick(view v) {             // button send request server             new pingposttask().execute();          }     });  }  private class pingposttask extends asynctask<string, integer, string>{      @override     protected string doinbackground(string... params) {         postdata(params[2]);         return null;     }      protected void onpostexecute(string result) {         //display result          toast.maketext(getapplicationcontext(), "request sent", toast.length_long).show();       }      public void postdata(string password) {         // create new httpclient , post header                     httpclient httpclient = new defaulthttpclient();                     httppost httppost = new httppost("http://ec2-54-243-205-92.compute-1.amazonaws.com/test/ping.php");                      try {                         // add data                         list<namevaluepair> namevaluepairs = new arraylist<namevaluepair>();                         namevaluepairs.add(new basicnamevaluepair("egot", password));                         httppost.setentity(new urlencodedformentity(namevaluepairs));                          // execute http post request                         httpresponse response = httpclient.execute(httppost);                      } catch (clientprotocolexception e) {                         // todo auto-generated catch block                     } catch (ioexception e) {                         // todo auto-generated catch block                     }     }   }  @override public boolean oncreateoptionsmenu(menu menu) {      // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.ping_server, menu);     return true; } 

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