changing spinners value based on other spinners from mysql database (Android) -

can point me tutorials or guides on this. how update value of 1 spinner based on selection of previous spinner. data values coming mysql database. have searched around have not found satisfactory answer. pls help.

spinner = (spinner) findviewbyid(r.id.spinner);     spinner.setonitemselectedlistener(spinnerlistener);     spinner2 = (spinner) findviewbyid(r.id.spinnersportcentername);     spinner2.setonitemselectedlistener(spinnerlistener); 

from above have 2 spinners. right im getting data database. , code below. getting data. need update value of second spinner based on item selected in first spinner. how do that? pretty clueless right now.

private void getdata(){     //creating string request     stringrequest stringrequest = new stringrequest(facilityconfig.data_url,             new response.listener<string>() {                 @override                 public void onresponse(string response) {                     jsonobject j = null;                     try {                         //parsing fetched json string json object                         j = new jsonobject(response);                          //storing array of json string our json array                         result = j.getjsonarray(facilityconfig.json_array);                                                      getfacility(result);                     } catch (jsonexception e) {                         e.printstacktrace();                     }                 }             },             new response.errorlistener() {                 @override                 public void onerrorresponse(volleyerror error) {                  }             });      //creating request queue     requestqueue requestqueue = volley.newrequestqueue(this);      //adding request queue     requestqueue.add(stringrequest); }  private void getfacility(jsonarray j){     //traversing through items in json array     for(int i=0;i<j.length();i++){         try {             //getting json object             jsonobject json = j.getjsonobject(i);                              facilities.add(json.getstring  (facilityconfig.tag_facility));          } catch (jsonexception e) {             e.printstacktrace();         }     }      //setting adapter show items in spinner     spinner.setadapter(new arrayadapter<string>(fragmentone.this, android.r.layout.simple_spinner_dropdown_item, facilities));  }   private void getdata2(){     //creating string request     stringrequest stringrequest = new stringrequest(spnameconfig.data_url,             new response.listener<string>() {                 @override                 public void onresponse(string response) {                     jsonobject j = null;                     try {                         //parsing fetched json string json object                         j = new jsonobject(response);                          //storing array of json string our json array                         result = j.getjsonarray(spnameconfig.json_array2);                           getspname(result);                     } catch (jsonexception e) {                         e.printstacktrace();                     }                 }             },             new response.errorlistener() {                 @override                 public void onerrorresponse(volleyerror error) {                  }             });      //creating request queue     requestqueue requestqueue = volley.newrequestqueue(this);      //adding request queue     requestqueue.add(stringrequest); }  private void getspname(jsonarray j){     //traversing through items in json array     for(int i=0;i<j.length();i++){         try {             //getting json object             jsonobject json = j.getjsonobject(i);               sportcenternames.add(json.getstring(spnameconfig.tag_sportcentername));         } catch (jsonexception e) {             e.printstacktrace();         }     }      //setting adapter show items in spinner      spinner2.setadapter(new arrayadapter<string>(fragmentone.this, android.r.layout.simple_spinner_dropdown_item, sportcenternames)); }    public class myonitemselectedlistener implements adapterview.onitemselectedlistener {      context mcontext;      public myonitemselectedlistener(context context){         this.mcontext = context;     }      private string getprice(int pos){         string price="";         try {             //getting object of given index             jsonobject json = result.getjsonobject(pos);              //fetching name object             price = json.getstring(facilityconfig.tag_price);         } catch (jsonexception e) {             e.printstacktrace();         }         //returning name         return price;     }     public void onitemselected(adapterview<?> parent, view v, int pos, long row) {          switch (parent.getid()) {             case r.id.spinner:                 toast.maketext(parent.getcontext(),                         "onitemselectedlistener : " + parent.getitematposition(pos).tostring(),                         toast.length_short).show();                 textviewprice.settext(getprice(pos));                 break;             case r.id.spinnersportcentername:                 toast.maketext(parent.getcontext(),                         "onitemselectedlistener : " + parent.getitematposition(pos).tostring(),                         toast.length_short).show();                 break;         }       }      @override     public void onnothingselected(adapterview<?> parent) {         textviewprice.settext("");     } } 

    firstspinner.setonitemselectedlistener(new adapterview.onitemselectedlistener()     public void onitemselected(adapterview<?> parent, view view, int position,       long id) {     arrayadapter<string> newadaptor = new arrayadapter<string>(this,  android.r.layout    .simple_spinner_dropdown_item, value);     secondspinner.setadapter(adapter);  }    @override    public void onnothingselected(adapterview<?> parent) {     toast.maketext(getapplicationcontext(),"please seelct  country",toast.length_short).show(); }); 

hope work.