SectionedRecyclerViewAdapter

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar', '*.har'])
	……
}

repositories {
    maven {
        url 'http://106.15.92.248:8081/repository/Releases/' 
    }
}

dependencies {
    Implementation 'com.github.luizgrp.ohos:SectionedRecyclerViewAdapter:1.0.1'
}

final class ContactsSection extends Section {

    private final String title;
    private final List<Contact> list;
    private final ClickListener clickListener;
    private final Context context;

    ContactsSection(Context context, final String title, final List<Contact> list,
                    final ClickListener clickListener) {

        super(SectionParameters.builder()
                .itemResourceId(ResourceTable.Layout_section_ex1_item)
                .headerResourceId(ResourceTable.Layout_section_ex1_header)
                .build());
        this.context = context;
        this.title = title;
        this.list = list;
        this.clickListener = clickListener;
    }

    @Override
    public int getContentItemsTotal() {
        return list.size();
    }

    @Override
    public ViewHolder getItemViewHolder(final Component component) {
        return new ItemViewHolder(component);
    }

    @Override
    public void onBindItemViewHolder(ViewHolder holder, int position) {
        final ItemViewHolder itemHolder = (ItemViewHolder) holder;
        final Contact contact = list.get(position);
        itemHolder.tvItem.setText(contact.name);
        VectorElement element = new VectorElement(context, contact.profileImage);
        itemHolder.imgItem.setImageElement(element);
        itemHolder.root.setClickedListener(v ->
                clickListener.onItemRootViewClicked(this, position)
        );
    }

    @Override
    public ViewHolder getHeaderViewHolder(final Component component) {
        ViewHolder viewHolder = null;
        try {
            viewHolder = new HeaderViewHolder(component);
        } catch (Exception e) {
            System.out.println("ContactsSection getHeaderViewHolder Exception " + e.getMessage());
        }
        return viewHolder;
    }

    @Override
    public void onBindHeaderViewHolder(final ViewHolder holder) {
        final HeaderViewHolder headerHolder = (HeaderViewHolder) holder;
        headerHolder.tvTitle.setText(title);
    }

    interface ClickListener {
        void onItemRootViewClicked(final ContactsSection section, final int position);
    }
}

final class ItemViewHolder extends RecyclerAdapter.ViewHolder {

    final Component root;
    final Image imgItem;
    final Text tvItem;

    public ItemViewHolder(Component component) {
        super(component);
        root = component;
        imgItem = (Image) component.findComponentById(ResourceTable.Id_imgItem);
        tvItem = (Text) component.findComponentById(ResourceTable.Id_tvItem);
    }
}

    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_fragment_ex1);
        sectionedAdapter = new SectionedRecyclerViewAdapter(this);
        final Map<String, List<Contact>> contactsMap = new LoadContactsUseCase().execute(this);
        for (final Map.Entry<String, List<Contact>> entry : contactsMap.entrySet()) {
            if (entry.getValue().size() > 0) {
                sectionedAdapter.addSection(new ContactsSection(this, entry.getKey(), entry.getValue(), this));
            }
        }
        ListContainer listContainer = (ListContainer) findComponentById(ResourceTable.Id_recyclerview);
        listContainer.setLayoutManager(new DirectionalLayoutManager());
        listContainer.setItemProvider(sectionedAdapter);
    }