private class CustomAdapter extends BaseAdapter
{
    LayoutInflater viewInflator;

    public CustomAdapter(Context context)
    {
        viewInflator = LayoutInflater.from(context);
    }

    public int getCount()
    {
        return weekDate.size();
    }

    public Object getItem(int arg0)
    {
        return arg0;
    }

    public long getItemId(int arg0)
    {
        return arg0;
    }

    public View getView(int position, View createView, ViewGroup viewGroup)
    {
        ViewHolder holder;

        if(viewInflator != null)
            holder = (ViewHolder) createView.getTag();
        else
        {
            createView = viewInflator.inflate(R.layout.vehicle_detail_listview, null);
            holder = new ViewHolder();
            holder.setTextView( (TextView) createView.findViewById(R.id.listContent) );
            createView.setTag(holder);
        }

        holder.getTextView().setText(weekDate.get(position));

        return createView;
    }

    private class ViewHolder
    {
        private TextView textView;

        public TextView getTextView()
        {
            return textView;
        }

        public void setTextView(TextView textView)
        {
            this.textView = textView;
        }
    }
}

CustomAdapter adapter = new CustomAdapter(this);
    listView.setAdapter(adapter);

if(createView != null)
            holder = (ViewHolder) createView.getTag();
        else
        {
            createView = viewInflator.inflate(R.layout.vehicle_detail_listview, null);
            holder = new ViewHolder();
            holder.setTextView( (TextView) createView.findViewById(R.id.listContent) );
            createView.setTag(holder);
        }

if(viewInflator != null) with
if(createView != null)