Ich habe eine ListView, also möchte ich eine klebrige Überschrift hinzufügen, damit sie oben in der ListView bleibt. Wenn eine andere Kategorie in der ListView beginnt, wird eine andere Überschrift angezeigt, wie bei den Kontakten "a" als Ein Sticky-Header befindet sich oben, bis "b" eingeht. Gibt es eine Bibliothek, die das tut? Ich verwende einen benutzerdefinierten Listenadapter, um meine Liste anzuzeigen ...

Dies ist meine benutzerdefinierte Adapterklasse

public class NewsRowAdapter extends ArrayAdapter<Item>  {

private Activity activity;
private List<Item> items;
private Item objBean;
private int row;

private DisplayImageOptions options;
ImageLoader imageLoader;

public NewsRowAdapter(Activity act, int resource, List<Item> arrayList) {
    super(act, resource, arrayList);
    this.activity = act;
    this.row = resource;
    this.items = arrayList;



    imageLoader = ImageLoader.getInstance();
    File cacheDir1 = StorageUtils.getCacheDirectory(activity);

    ImageLoaderConfiguration config = new
    ImageLoaderConfiguration.Builder(activity)
    .maxImageWidthForMemoryCache(600)
    .maxImageHeightForMemoryCache(400)
    .httpConnectTimeout(5000)
    .httpReadTimeout(20000)
    .threadPoolSize(3)
    .threadPriority(Thread.MIN_PRIORITY + 3)
    .denyCacheImageMultipleSizesInMemory()
    .memoryCache(new UsingFreqLimitedMemoryCache(20000)) // You can pass your own memory cache implementation
    .discCache(new TotalSizeLimitedDiscCache(cacheDir1, 30000)) // You can pass your own disc cache implementation
    .defaultDisplayImageOptions(DisplayImageOptions.createSimple())
    .build();


    ImageLoader.getInstance().init(config);
//              imageLoader = ImageLoader;
//      

   options = new DisplayImageOptions.Builder()
    .showStubImage(R.drawable.icon2x)
    .showImageForEmptyUrl(R.drawable.icon2x).cacheInMemory()
    .cacheOnDisc().build();
//imageLoader = ImageLoader.getInstance();

}

@Override
public Item getItem(int position)
{
    return items.get(position);
}

@Override
public int getCount()
{
    return items.size();
}

@Override
public int getViewTypeCount()
{
    return 3;
}

@Override
public int getItemViewType(int position)
{
    Item item = items.get(position);
    if (item.isHeader())
    {
        return TYPE_SECTION_HEADER;
    }
    else
    {
        return TYPE_LIST_ITEM;
    }
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    View view = convertView;
    ViewHolder holder;
    if (view == null) {
        LayoutInflater inflater = (LayoutInflater) activity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(row, null);

        holder = new ViewHolder();
        view.setTag(holder);
    } else {
        holder = (ViewHolder) view.getTag();
    }

    if ((items == null) || ((position + 1) > items.size()))
        return view;

    objBean = items.get(position);

    holder.tvName = (TextView) view.findViewById(R.id.title);
    holder.tvId = (TextView) view.findViewById(R.id.id);
    holder.tvFlag = (TextView) view.findViewById(R.id.flag);
    holder.tvimageurl=(TextView) view.findViewById(R.id.imageurl);
    holder.tvGender = (ImageView) view.findViewById(R.id.image);
    //holder.tvAge = (TextView) view.findViewById(R.id.tvage);
    holder.pbar = (ProgressBar) view.findViewById(R.id.pbar);
    if (holder.tvName != null && null != objBean.getName()
            && objBean.getName().trim().length() > 0) {
        holder.tvName.setText(Html.fromHtml(objBean.getName()));
    }
    if (holder.tvId != null && null != objBean.getId()
            && objBean.getId().trim().length() > 0) {
        holder.tvId.setText(Html.fromHtml(objBean.getId()));

    }
    if (holder.tvFlag != null && null != objBean.getFlag()
            && objBean.getFlag().trim().length() > 0) {
        holder.tvFlag.setText(Html.fromHtml(objBean.getFlag()));

    }

    if (holder.tvimageurl != null && null != objBean.getGender()
            && objBean.getFlag().trim().length() > 0) {
        holder.tvimageurl.setText(Html.fromHtml(objBean.getGender()));

    }

    //if (holder.tvBDate != null && null != objBean.getBirthdate()
    //      && objBean.getBirthdate().trim().length() > 0) {
    //  holder.tvBDate.setText(Html.fromHtml(objBean.getBirthdate()));
    //}
    if (holder.tvGender != null) {
        if (null != objBean.getGender()
                && objBean.getGender().trim().length() > 0) {
            final ProgressBar pbar = holder.pbar;


            imageLoader.displayImage(objBean.getGender(), holder.tvGender,
                    options, new ImageLoadingListener() {

                        @Override
                        public void onLoadingComplete() {
                            pbar.setVisibility(View.INVISIBLE);

                        }


                        @Override
                        public void onLoadingFailed() {
                            pbar.setVisibility(View.INVISIBLE);
                        }


                        @Override
                        public void onLoadingStarted() {
                            pbar.setVisibility(View.INVISIBLE);

                        }
                    });

        } else {
            holder.tvGender.setImageResource(R.drawable.icon2x);
        }
    }


    return view;
}

public class ViewHolder {
    public TextView tvimageurl;
    public TextView tvFlag;
    public TextView tvId;
    public ProgressBar pbar;
    public TextView tvName, tvCity, tvBDate, tvAge;
    ImageView tvGender;
}


}

Hilfe benötigt.....