android - How to insert object in a spinner -

i want know how can put spinner in activity filled values of object.

i used spinners with:

sp_usage.setonitemselectedlistener(new adapterview.onitemselectedlistener() {             public void onitemselected(adapterview<?> parent, view view, int pos, long id) {                 object item = parent.getitematposition(pos);             }             public void onnothingselected(adapterview<?> parent) {             }         }); 

the case receive array of object server items id , name. want know how can know item selected, need resend id server.

note: ids received haven't sequences, 1,23,47...

i uses object:

public class usages {      @key     public string idd;      @key     public string msgerror;      @key     public string usage;      public string getidd() {         return idd;     }      public void setidd(string idd) {         this.idd = idd;     }      public string getmsgerror() {         return msgerror;     }      public void setmsgerror(string msgerror) {         this.msgerror = msgerror;     }      public string getusages() {         return usage;     }      public void setusages(string usages) {         this.usage = usage;     }      @override     public string tostring() {         return "usages{" +                 "idd='" + idd + '\'' +                 ", msgerror='" + msgerror + '\'' +                 ", usage='" + usage + '\'' +                 '}';     } } 

thanks