在android中的适配器上过滤

Question

我有一个列表视图，我正在使用

填充数据

searchList.setAdapter（new DirectoryListAdapter（））;

其中DirectoryListAdapter是我的适配器扩展基础适配器。当我在其中一个items-employee_name上搜索我的搜索文本框中应该包含的内容。我厌倦了这段代码但是没有用。

@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {

    ((DirectoryListAdapter)adapter).filter(text);
    }

onTextChanged方法应该包含什么。基础适配器代码 公共类DirectoryListAdapter扩展了BaseAdapter {

ViewHolder holder;

static class ViewHolder {
    public TextView text;
    public ImageView image;
    public TextView nearestEntranceText;
}

@Override
public int getCount() {
    int len = MasterData.getInstance().getTenantList().size();
    return len;
}

@Override
public Object getItem(int position) {
    return null;
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView (int position, View convertView, ViewGroup parent) {
    View directoryItemView = convertView;

    if (directoryItemView == null) {
        directoryItemView = LayoutInflater.from(parent.getContext()).inflate (R.layout.list_view_item, parent, false);
        ViewHolder viewHolder = new ViewHolder ();
        viewHolder.text = (TextView) directoryItemView.findViewById (R.id.itemTextView);
        viewHolder.image = (ImageView) directoryItemView.findViewById (R.id.logoImageView);
        viewHolder.nearestEntranceText = (TextView) directoryItemView.findViewById (R.id.closestEntranceTextView);
        directoryItemView.setTag (viewHolder);
        holder = viewHolder;
    } else {
        holder = (ViewHolder) directoryItemView.getTag();
    }

    TenantItem item = (TenantItem) MasterData.getInstance().getTenantList().get(position);

    final String noLogoCheckStr = parent.getContext().getString (R.string.web_service_no_logo_comparsion_string);
    final String fetchLink = item.getTenantLogoURL();

    ListItemLayout layoutItem = (ListItemLayout) directoryItemView;
    layoutItem.tenantItemObj = item;
    /*
    layoutItem.tenantID = item.getTenantID();
    if (item.getHasMultipleEntries()) {
        layoutItem.tenantIDList = item.getTenantIDList();
    }
    // layoutItem.tenantIDList = item.getTenantList
    */

    if (fetchLink.contains (noLogoCheckStr)) {
        Picasso.with (parent.getContext())
            .load(R.drawable.placeholder_logo)
            .into(holder.image);
    } else {
        Picasso.with (parent.getContext())
            .load(fetchLink)
            .error(R.drawable.placeholder_logo)
            .into(holder.image);
    }

    holder.text.setText(item.getTenantName());
    if (item.getHasMultipleEntries()) {
        holder.nearestEntranceText.setText (R.string.tenant_multiple_location_label);
    } else {
        holder.nearestEntranceText.setText (item.getTenantLocation());
    }
    return directoryItemView;
}

}