sqlite - Android - Two spinners in one Activity - Saving Data is not working -


my problem following. have 2 spinners in 1 activity. want both spinner items should saved in db. there slight difference between both spinners:

  • spinner 1: populated data other db-table - when spinner in mentioned activity, works.
  • spinner 2: has default values. not sure if added correctly activity. anyway, after added saving data not working anymore.

please me doing wrong??

my activity code:

public class activity_transport extends appcompatactivity {      private bottomnavigationviewex bottomnavigationviewex;     databasehelper mydb;     button btn_save;     spinner chooseproject,choosetransport;     edittext entfernung,price,mwst;     string selectedspinner, selectedtransport;      imageview imageview2;     private static int pick_image = 100;     uri imageuri;      protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_transport);         mydb = new databasehelper(this);          chooseproject = (spinner) findviewbyid(r.id.chooseproject);         choosetransport = (spinner) findviewbyid(r.id.choosetransport);         entfernung = (edittext) findviewbyid(r.id.entfernung);         price = (edittext) findviewbyid(r.id.preis);         mwst = (edittext) findviewbyid(r.id.mwst);         btn_save=(button) findviewbyid(r.id.btn_save);         //bildanzeigebereich im layout         imageview2=(imageview) findviewbyid(r.id.imageview2);         loadprojectspinnerdata();         //loadtransportspinnerdata();         savedata();      //+++++++++++++++function load spinner data sqlite database++++++++++//      private void loadprojectspinnerdata() {         // database handler         databasehelper db = new databasehelper (getapplicationcontext());          // spinner drop down elements         list<string> projects = db.getallprojects();          // creating adapter spinner         arrayadapter<string> dataadapter = new arrayadapter<string>(this, android.r.layout.simple_spinner_item, projects);          // drop down layout style - list view radio button         dataadapter.setdropdownviewresource(android.r.layout.simple_spinner_dropdown_item);         chooseproject.setprompt("projekt auswählen");          // attaching data adapter spinner         chooseproject.setadapter(dataadapter);            //choose transport spinner         arrayadapter<string> spinnerarrayadapter = new arrayadapter<string>(this,                 android.r.layout.simple_spinner_item, new string[] {                 new string("auto"),                 new string("flugzeug"),                 new string("taxi"),                 new string("bahn")});         choosetransport.setadapter(spinnerarrayadapter);          // drop down layout style - list view radio button         spinnerarrayadapter.setdropdownviewresource(android.r.layout.simple_spinner_dropdown_item);         choosetransport.setprompt("transport auswählen");          // attaching data adapter spinner         choosetransport.setadapter(spinnerarrayadapter);           //listener für den projekt spinner damit ich den wert abspeichern kann         chooseproject.setonitemselectedlistener(new adapterview.onitemselectedlistener() {             public void onitemselected(adapterview<?> parent, view view, int pos, long id) {                  spinner spinner = (spinner) parent;                 if(spinner.getid() == r.id.chooseproject)                 {                     selectedspinner = (string) chooseproject.getselecteditem();                 }                 else if(spinner.getid() == r.id.choosetransport)                 {                     selectedtransport = (string) choosetransport.getselecteditem();                 }                 //selectedspinner =string.valueof(parent.getitematposition(pos));              }             public void onnothingselected(adapterview<?> parent) {             }         });      }           /*private void loadtransportspinnerdata() {         // spinner method read on selected value         arrayadapter<string> spinnerarrayadapter = new arrayadapter<string>(this,                 android.r.layout.simple_spinner_item, new string[] {                 new string("auto"),                 new string("flugzeug"),                 new string("taxi"),                 new string("bahn")});         choosetransport.setadapter(spinnerarrayadapter);           // creating adapter spinner         //arrayadapter<string> dataadapter = new arrayadapter<string>(this, android.r.layout.simple_spinner_item, projects);          // drop down layout style - list view radio button         spinnerarrayadapter.setdropdownviewresource(android.r.layout.simple_spinner_dropdown_item);         choosetransport.setprompt("transport auswählen");          // attaching data adapter spinner         choosetransport.setadapter(spinnerarrayadapter);          //listener für den projekt spinner damit ich den wert abspeichern kann         choosetransport.setonitemselectedlistener(new adapterview.onitemselectedlistener() {             public void onitemselected(adapterview<?> parent, view view, int pos, long id) {                 //selectedspinner =string.valueof(parent.getitematposition(pos));                 selectedtransport = (string) choosetransport.getselecteditem();             }             public void onnothingselected(adapterview<?> parent) {             }         });      }*/        //++++++++++++save data++++++//     public void savedata(){         btn_save.setonclicklistener(                 new view.onclicklistener() {                     @override                     public void onclick(view v) {                         boolean isinserted = mydb.createtransport(                                 selectedspinner,                                 selectedtransport,                                 integer.valueof(price.gettext().tostring()),                                 integer.valueof(mwst.gettext().tostring()),                                 integer.valueof(entfernung.gettext().tostring()),                                 imageviewtobyte(imageview2)                         );                         if(isinserted=true)                             toast.maketext(activity_transport.this, "daten gespeichert", toast.length_long).show();                         else                             toast.maketext(activity_transport.this, "daten nicht gespeichert", toast.length_long).show();                      }                 }         );     }   }

edit:

i tried run app setting few breakpoints. when trying run line selectedtransport = (string) choosetransport.getselecteditem(); debugger posts cannot find local variable 'choosetransport'

i solved problem:

i implemented own method choosetransport- spinner , works. figured out order how add data db not right. changed too.

see here method second spinner:

private void loadtransportspinnerdata(){           arrayadapter<charsequence> spinnerarrayadapter = arrayadapter.createfromresource(this, r.array.transport, android.r.layout.simple_spinner_dropdown_item);         spinnerarrayadapter.setdropdownviewresource(android.r.layout.simple_spinner_dropdown_item);         choosetransport.setprompt("transport auswählen");         choosetransport.setadapter(spinnerarrayadapter);          choosetransport.setonitemselectedlistener(new adapterview.onitemselectedlistener() {             @override             public void onitemselected(adapterview<?> adapterview, view view, int i, long l) {                 selectedtransport = (string) choosetransport.getselecteditem();             }              @override             public void onnothingselected(adapterview<?> adapterview) {              }         });      }

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