android - Drop-Down Spinner inside of Pop-Up Window -


how can have drop down spinner inside of popup window? i've tried looking, answers have found create dialog spinner instead (which not want). tried doing custom adapter , seem getting error context (basically, once popup window initiates, context activity gone) how can context pop-up window or how can implement drop down spinner?

edit:

adapter:

public class spinadapter extends arrayadapter<contact>{      // sent context     private context context;     // custom values spinner (user)     private arraylist<contact> values;      public spinadapter(context context, int textviewresourceid,                        arraylist<contact> values) {         super(context, textviewresourceid, values);         this.context = context;         this.values = values;     }      public int getcount(){         return values.size();     }      public contact getitem(int position){         return values.get(position);     }      public long getitemid(int position){         return position;     }       // , "magic" goes here     // "passive" state of spinner     @override     public view getview(int position, view convertview, viewgroup parent) {         // created dynamic textview here, can reference own  custom layout each spinner item         textview label = new textview(context);         label.settextcolor(color.black);         // can current item using values array (users array) , current position         // can reference each method has created in bean object (user class)         label.settext(values.get(position).tostring());          // , return dynamic (or custom) view each spinner item         return label;     }      // , here when "chooser" popped     // same view, can customize if want     @override     public view getdropdownview(int position, view convertview,                                 viewgroup parent) {         textview label = new textview(context);         label.settextcolor(color.black);         label.settext(values.get(position).tostring());          return label;     } }

starting spinner in pop-up window:

private void initiatepopupwindow(){     try{         arraylist<contact> con = tinydb.getlistadd("address", contact.class);         contact = new contact("a","b");         con.add(a);         spinadapter adapt;         adapt = new spinadapter(todoroom.this ,                 android.r.layout.simple_spinner_item,                 con);         layoutinflater inflater = (layoutinflater) todoroom.this                 .getsystemservice(context.layout_inflater_service);          view layout = inflater.inflate(r.layout.addpop,                 (viewgroup) findviewbyid(android.r.id.background));         pw = new popupwindow(layout,300,300,true);         //pw.istouchable();        // pw.isfocusable();         pw.showatlocation(layout, gravity.center, 0,0);          //final edittext address = (edittext)layout.findviewbyid(r.id.editaddress) ;         final spinner address = (spinner) layout.findviewbyid(r.id.spinner);         final edittext name = (edittext)layout.findviewbyid(r.id.editname);          address.setadapter(adapt);           imagebutton = (imagebutton)layout.findviewbyid(r.id.cancelbut);         back.setonclicklistener(                 new view.onclicklistener(){                    public void onclick(view view){                         pw.dismiss();                     }           }         );          button add = (button)layout.findviewbyid(r.id.addbut);         add.setonclicklistener(                 new view.onclicklistener(){                   public void onclick(view view){                       task = new task(name.gettext().tostring(), address.getselecteditem().tostring() );                       todos.add(a);                       tinydb.putlisttask("tasks",(arraylist)todos);                       pw.dismiss();                       list.setadapter(adapter);                    }                 }         );        } catch (exception e){         e.printstacktrace();       } }

error message:

process: com.example.vlad.gpslocate, pid: 27527                                                                         android.view.windowmanager$badtokenexception: unable add window -- token android.view.viewrootimpl$w@5c0ba7c not valid; activity running?                                                                             @ android.view.viewrootimpl.setview(viewrootimpl.java:679)                                                                             @ android.view.windowmanagerglobal.addview(windowmanagerglobal.java:342)                                                                             @ android.view.windowmanagerimpl.addview(windowmanagerimpl.java:93)                                                                             @ android.widget.popupwindow.invokepopup(popupwindow.java:1378)                                                                             @ android.widget.popupwindow.showasdropdown(popupwindow.java:1234)                                                                             @ android.widget.listpopupwindow.show(listpopupwindow.java:671)                                                                             @ android.widget.spinner$dropdownpopup.show(spinner.java:1235)                                                                             @ android.widget.spinner.performclick(spinner.java:770)                                                                             @ android.support.v7.widget.appcompatspinner.performclick(appcompatspinner.java:438)                                                                             @ android.view.view$performclick.run(view.java:22429)                                                                             @ android.os.handler.handlecallback(handler.java:751)                                                                             @ android.os.handler.dispatchmessage(handler.java:95)                                                                             @ android.os.looper.loop(looper.java:154)                                                                             @ android.app.activitythread.main(activitythread.java:6119)                                                                             @ java.lang.reflect.method.invoke(native method)                                                                             @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:886)                                                                             @ com.android.internal.os.zygoteinit.main(zygoteinit.java:776)


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