مشکل فونت در gridview

چجوری در gridView اصلی font هرکدام از عناصر رو بوسیله SetTypeFace و با فونت دلخواه خودم تغییر بدم ؟

 publicclassMainActivityextendsActivity{

GridView              gridView;
ArrayList<Item>       gridArray =newArrayList<Item>();
CustomGridViewAdapter customGridAdapter;


@Override
protectedvoid onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
        setContentView(R.layout.menu);

//set grid view item
Bitmap test =BitmapFactory.decodeResource(this.getResources(), R.drawable.test);

        gridArray.add(newItem(test,"test text"));


        gridView =(GridView) findViewById(R.id.gridView1);
        customGridAdapter =newCustomGridViewAdapter(this, R.layout.row_grid, gridArray);
        gridView.setAdapter(customGridAdapter);

}

}

publicclassItem{

Bitmap image;
String title;


publicItem(Bitmap image,String title){
super();
this.image = image;
this.title = title;
}


publicBitmap getImage(){
return image;
}


publicvoid setImage(Bitmap image){
this.image = image;
}


publicString getTitle(){
return title;
}


publicvoid setTitle(String title){
this.title = title;
}

}

 publicclassCustomGridViewAdapterextendsArrayAdapter{Context         context;int             layoutResourceId;ArrayList data =newArrayList();publicCustomGridViewAdapter(Context context,int layoutResourceId,ArrayList data){super(context, layoutResourceId, data);this.layoutResourceId = layoutResourceId;this.context = context;this.data = data;}@OverridepublicView getView(int position,View convertView,ViewGroup parent){View row = convertView;RecordHolder holder =null;if(row ==null){LayoutInflater inflater =((Activity) context).getLayoutInflater();
            row = inflater.inflate(layoutResourceId, parent,false);

            holder =newRecordHolder();
            holder.txtTitle =(TextView) row.findViewById(R.id.item_text);
            holder.imageItem =(ImageView) row.findViewById(R.id.item_image);
            row.setTag(holder);}else{
            holder =(RecordHolder) row.getTag();}Item item = data.get(position);
        holder.txtTitle.setText(item.getTitle());
        holder.imageItem.setImageBitmap(item.getImage());return row;}staticclassRecordHolder{TextView  txtTitle;ImageView imageItem;}}