android - Spinner by arrayadapter acts "weird" -


i have spinner. have overridden custom dropdown getview.
i'm working in android 2.2

problem selected value gets replaced "default"(empty field) inserted value when reopening selector: images explain below, , overridden code below them:

initial activity

now pressing spinner:

selection

now pressing robs, , pressing spinner again

missing robs

dropdown overridden method:

    @override     public view getdropdownview(int position, view convertview,             viewgroup parent) {         view v;         viewholder holder;         if (convertview == null) {             v = view.inflate(ctx, r.layout.fav_spinner_item, null);             holder = new viewholder();             holder.indentationfield = (imageview) v                     .findviewbyid(r.id.indent);             holder.namefield = (textview) v.findviewbyid(r.id.name);             holder.levelcount = mlist.get(position).gettier() != -1 ? mlist                     .get(position).gettier() : 0;             holder.namefield.settext(mlist.get(position).getdisplayname());             if (holder.levelcount == 0) {                 holder.indentationfield.setvisibility(view.gone);             } else {                 relativelayout.layoutparams params = (relativelayout.layoutparams) holder.indentationfield.getlayoutparams();                 params.setmargins(params.leftmargin+((params.leftmargin+15)*holder.levelcount), params.topmargin, params.rightmargin, params.bottommargin);                 holder.indentationfield.setlayoutparams(params);             }             v.settag(holder);         } else {             v = convertview;             holder = (viewholder) convertview.gettag();         }          return v;     }

you aren't using viewholder pattern properly. since getdropdownview() can called any item index , can passed any recycled view, need reset dynamic data every time. this:

@override public view getdropdownview(int position, view convertview,         viewgroup parent) {     view v;     viewholder holder;     if (convertview == null) {         v = view.inflate(ctx, r.layout.fav_spinner_item, null);         holder = new viewholder();         holder.indentationfield = (imageview) v                 .findviewbyid(r.id.indent);         holder.namefield = (textview) v.findviewbyid(r.id.name);         v.settag(holder);     } else {         v = convertview;         holder = (viewholder) convertview.gettag();     }     // rest of dynamic data, based on item position     holder.levelcount = mlist.get(position).gettier() != -1 ? mlist                 .get(position).gettier() : 0;     holder.namefield.settext(mlist.get(position).getdisplayname());     if (holder.levelcount == 0) {         holder.indentationfield.setvisibility(view.gone);     } else {         relativelayout.layoutparams params = (relativelayout.layoutparams) holder.indentationfield.getlayoutparams();         params.setmargins(params.leftmargin+((params.leftmargin+15)*holder.levelcount), params.topmargin, params.rightmargin, params.bottommargin);         holder.indentationfield.setlayoutparams(params);         holder.indentationfield.setvisibility(view.visible);     }     return v; }

also notice line added reset visibility of indentationfield visible because might recycling view visibility set gone


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