android - GridView loading images twice -

i'm trying create gallery loading instagram images specific tag. works pretty great except fact images duplicated.

my custom adapter looks this:

    private class imageadapter extends baseadapter {         private context mcontext;         private arraylist<squareimagebutton> imagebuttons;          public imageadapter(context c, arraylist<squareimagebutton> imagebuttons) {             mcontext = c;             this.imagebuttons = imagebuttons;         }         @override         public int getcount() {             return imagebuttons.size();         }          @override         public object getitem(int position) {             return imagebuttons.get(position);         }          @override         public long getitemid(int position) {             return imagebuttons.get(position).getid();         }          @override         public view getview(int position, view convertview, viewgroup parent){             return imagebuttons.get(position);         }          public void adddata(arraylist<squareimagebutton> newbuttons){             imagebuttons.addall(newbuttons);             notifydatasetchanged();         }     } 

i've tried redo getview method, because thats suggests in other peoples questions. can't seem figure out.

i've tried this:

    @override     public view getview(int position, view convertview, viewgroup parent){         squareimagebutton sib;         if(convertview == null){             sib = imagebuttons.get(position);         }else{             sib = (squareimagebutton)convertview;         }         return sib;     } 

but makes whole gridview weird floating images move on when scroll.

any suggestions appreciated.