android - the List<> being empty after filling it in for loop -

i want details db, , put them in list. - inside loop can see list gets details (list size increases , values in list true. - after loop ends, check list , find size want, fields values null!! list variable defined outside function (i.e it's class field). see: loop start cursors value put value in list check list value : value ok. loop end.

check list value : value null.

here code:

  list<bundle> friends = new arraylist<bundle>(); public  list<bundle> getallfriends() {     sqlitedatabase db = this.getwritabledatabase();     string check="select *  friends";     cursor c = null;      string name ="";     string id ="";     string onlinestt ="";     string photourl ="";     string friendsince ="";     bundle det=new bundle();     if(db!=null)         c=db.rawquery(check,null);     if(c!=null)     if(c.isbeforefirst()&&c.getcount()>0) // if there result/s     {         c.movetofirst();                {                              name = c.getstring(0);              id = c.getstring(1);              onlinestt = c.getstring(2);              photourl = c.getstring(3);              friendsince = c.getstring(4);              det.putstring("name",name);// fill bundle             det.putstring("id",id);             det.putstring("onlinestt",onlinestt);             det.putstring("photourl",photourl);             det.putstring("friendsince",friendsince);              friends.add(det);// put bundle in list    log.d("addfriend---","name in list: "+friends.get(friends.size()-1).getstring("name")); // true value              log.d("addfriend---","list size="+friends.size()); // size increased // log.d showed me current value             det.clear(); // clear bundle          } while(c.movetonext());         if(friends.size()<1)         { log.d("fun","no friends found!") ;             return null;}        } else return null; (int x=0;x<friends.size()-1;x++)  log.d("addfriend---","name of friend in list: "+friends.get(x).getstring("name")); // null  log.d("addfriend---"," list size after loop end "+friends.size()); // true size  return friends; 

.... logs results:

 addfriend---﹕ name of friend in list: john d/addfriend---﹕ list size=1 d/addfriend---﹕ name of friend in list: fadi ---- after loop: d/addfriend---﹕ list size=2 d/addfriend---﹕ name of friend in list: null d/addfriend---﹕ list size after loop end 2 

you should not call

det.clear();  

but should create new instance (bundle det = new bundle()) @ every iteration