data binding - Android Spinner databind using array list -

i have array list this:

private arraylist<locations> artist_result = new arraylist<location>(); 

this location class has 2 properties: id , location.

i need bind arraylist spinner. have tried way:

spinner s = (spinner) findviewbyid(r.id.spinnerspcial); arrayadapter adapter = new arrayadapter(this,android.r.layout.simple_spinner_item, artist_result); s.setadapter(adapter); 

however, shows object's hexadecimal value. think have set display text , value spinner controller. please can 1 me. need urgently.

the arrayadapter tries display location-objects strings (which causes hex-values), calling object.tostring()-method. it's default implementation returns:

[...] string consisting of the name of class of object instance, the at-sign character `@', , unsigned hexadecimal representation of hash code of object.

to make arrayadadpter show useful in item list, can override tostring()-method return meaningful:

@override public string tostring(){   return "something meaningful here..."; } 

---

another way is, extend baseadapter and implement spinneradapter create own adapter, knows elements in arraylist objects , how use properties of objects.

[revised] implementation example

i playing around bit , managed work:

public class main extends activity {      @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         // create , display spinner:         spinner s = new spinner(this);         abslistview.layoutparams params = new abslistview.layoutparams(                 viewgroup.layoutparams.fill_parent, viewgroup.layoutparams.wrap_content         );         this.setcontentview(s, params);         // fill arraylist:         list<guy> guys = new arraylist<guy>();         guys.add(new guy("lukas", 18));         guys.add(new guy("steve", 20));         guys.add(new guy("forest", 50));         myadapter adapter = new myadapter(guys);         // apply adapter:         s.setadapter(adapter);         // onclicklistener:         s.setonitemselectedlistener(new adapterview.onitemselectedlistener() {             /**              * called when new item selected (in spinner)              */             public void onitemselected(adapterview<?> parent,                                        view view, int pos, long id) {                 guy g = (guy) parent.getitematposition(pos);                 toast.maketext(                         getapplicationcontext(),                         g.getname()+" "+g.getage()+" years old.",                         toast.length_long                 ).show();             }              public void onnothingselected(adapterview parent) {                 // nothing.             }         });     }      /**      * own adapter implementation displays      * arraylist of "guy"-objects.      */     private class myadapter extends baseadapter implements spinneradapter {          /**          * internal data (the arraylist objects).          */         private final list<guy> data;          public myadapter(list<guy> data){             this.data = data;         }          /**          * returns size of arraylist          */         @override         public int getcount() {             return data.size();         }          /**          * returns 1 element of arraylist          * @ specified position.          */         @override         public object getitem(int position) {             return data.get(position);         }          @override         public long getitemid(int i) {             return i;         }         /**          * returns view shown when element          * selected.          */         @override         public view getview(int position, view recycle, viewgroup parent) {             textview text;             if (recycle != null){                 // re-use recycled view here!                 text = (textview) recycle;             } else {                 // no recycled view, inflate "original" platform:                 text = (textview) getlayoutinflater().inflate(                         android.r.layout.simple_dropdown_item_1line, parent, false                 );             }             text.settextcolor(color.black);             text.settext(data.get(position).name);             return text;         }       }      /**      * simple class holds information-fields      * guys.      */     private class guy{         private final string name;         private final int age;          public guy(string name, int age){             this.name = name;             this.age = age;         }          public string getname() {             return name;         }          public int getage() {             return age;         }     } } 

i commented code, if have questions, don't hesitate ask them.