Question

我有1000个客户从服务器加载自定义列表视图。但是我需要更多的时间来填充listview。我正在使用搜索选项来搜索客户，因此我需要一次性加载和显示所有客户。我无法从本地数据库中显示它，因为我可以在listview中编辑项目单击的详细信息并将其存储在服务器中。任何人都可以帮助我以有效的方式加载自定义列表视图吗？

  public class CustomersAdapter extends ArrayAdapter<Item> {

private ArrayList<Item> items;
private LayoutInflater vi;
private Item objItem;

ViewHolderSectionName holderSection;
ViewHolderName holderName;

public CustomersAdapter(Context context, ArrayList<Item> items) {
    super(context, 0, items);

    this.items = items;
    vi = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {

    objItem = items.get(position);

    if (objItem.isSectionItem()) {
        SectionHeadersModel si = (SectionHeadersModel) objItem;

        if (convertView == null
                || !convertView.getTag().equals(holderSection)) {
            convertView = vi.inflate(R.layout.alphabet_separator, null);

            holderSection = new ViewHolderSectionName();
            convertView.setTag(holderSection);
        } else {
            holderSection = (ViewHolderSectionName) convertView.getTag();
        }

        holderSection.section = (TextView) convertView
                .findViewById(R.id.alphabet_letter);
        holderSection.section.setText(si.getSectionString().toString());

    } else {
        CustomerListViewModel ei = (CustomerListViewModel) objItem;

        if (convertView == null || !convertView.getTag().equals(holderName)) {
            convertView = vi.inflate(R.layout.customer_list_item, null);

            holderName = new ViewHolderName();
            convertView.setTag(holderName);
        } else {
            holderName = (ViewHolderName) convertView.getTag();
        }

        holderName.name = (TextView) convertView
                .findViewById(R.id.CustomerName);
        holderName.email = (TextView) convertView
                .findViewById(R.id.CustomerEmail);
        holderName.phone = (TextView) convertView
                .findViewById(R.id.CustomerPhone);

        if (holderName.name != null)
            holderName.name.setText(ei.getCustomerName());
        holderName.email.setText(ei.getCustomerEmail());
        holderName.phone.setText(ei.getCustomerPhone());
    }
    return convertView;
}

public static class ViewHolderName {
    public TextView name;
    public TextView email;
    public TextView phone;
}

public static class ViewHolderSectionName {
    public TextView section;
}

}

Answer 1

尝试在listview中使用viewHolder，它将每个组件视图存储在Layout的标记字段中，这样您就可以立即访问它们而无需重复查找它们。这LINK可能会对您有所帮助。

Answer 2

您可以使用BaseAdapter。请参阅此Link和Link

如何有效地加载listview中的1000个数据

2 个答案: