How to set font type on android custombaseadapter -

i want change font type on list view, follow this answer,

i declare this

 lv = (listview)findviewbyid(r.id.listview1); customadapter.custombaseadapter adapter =  new customadapter.custombaseadapter(this, rowitems, "van helsing.ttf"); lv.setadapter(adapter); lv.setonitemclicklistener(this); 

but nothing happen listview font, won't change.

this custom adapter:

public custombaseadapter(context context, list<rowitem> items, string font) {     this.context = context;     this.rowitems = items;     tf = typeface.createfromasset(context.getassets(), font); } 

what probelem codes guys ?

edited:

context context; list<rowitem> rowitems; typeface tf;   public custombaseadapter(context context, list<rowitem> items, string font) {     this.context = context;     this.rowitems = items;     tf = typeface.createfromasset(context.getassets(), font); }  /*private view holder class*/ private class viewholder {      textview txtmenu;   }  public view getview(int position, view convertview, viewgroup parent) {     viewholder holder = null;      layoutinflater minflater = (layoutinflater)          context.getsystemservice(activity.layout_inflater_service);     if (convertview == null) {         convertview = minflater.inflate(r.layout.list_item, null);         holder = new viewholder();         holder.txtmenu = (textview) convertview.findviewbyid(r.id.namamenu);          convertview.settag(holder);     }     else {         holder = (viewholder) convertview.gettag();     }      rowitem rowitem = (rowitem) getitem(position);      holder.txtmenu.settext(rowitem.getnamamenu());      holder.textmenu.settypeface(tf);      return convertview; }  @override public int getcount() {          return rowitems.size(); }  @override public object getitem(int position) {     return rowitems.get(position); }  @override public long getitemid(int position) {     return rowitems.indexof(getitem(position)); } 

my layout:

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" >  <textview     android:id="@+id/namamenu"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:textcolor="#cc0033"     android:textsize="32dp"     android:textappearance="?android:attr/textappearancemedium" /> 

you need set font textview of list item

 textview.settypeface(tf); 

tf instance of typeface of custom font

example

 @override public view getview(int position, view v, viewgroup parent) {     view mview = v ;     if(mview == null){         layoutinflater vi = (layoutinflater)mcontext.getsystemservice(context.layout_inflater_service);         mview = vi.inflate(id, null);     }      textview text = (textview) mview.findviewbyid(r.id.textview);     textview.settypeface(tf);   } }