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社区首页 >问答首页 >在回收视图android中添加两个部分

在回收视图android中添加两个部分
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Stack Overflow用户
提问于 2015-06-10 17:54:54
回答 6查看 48K关注 0票数 40

在我的应用程序中,我使用recyclerview来显示所有联系人列表。我想要回收站的两个区。

像一个部分是我的应用程序联系人列表,第二部分是我的电话联系人列表。

像这样的

有什么方法可以做到吗?

有人知道怎么做吗?

EN

回答 6

Stack Overflow用户

回答已采纳

发布于 2015-11-18 08:26:47

如果您已经有了RecyclerView,那么使用Gabriele Mariotti的SimpleSectionedRecyclerViewAdapter是实现这些部分的一种简单方法。

我把他的例子粘贴给你:

代码语言:javascript
复制
//Your RecyclerView
mRecyclerView = (RecyclerView) findViewById(R.id.list);
mRecyclerView.setHasFixedSize(true);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mRecyclerView.addItemDecoration(new DividerItemDecoration(this,LinearLayoutManager.VERTICAL));

//Your RecyclerView.Adapter
mAdapter = new SimpleAdapter(this,sCheeseStrings);


//This is the code to provide a sectioned list
List<SimpleSectionedRecyclerViewAdapter.Section> sections =
        new ArrayList<SimpleSectionedRecyclerViewAdapter.Section>();

//Sections
sections.add(new SimpleSectionedRecyclerViewAdapter.Section(0,"Section 1"));
sections.add(new SimpleSectionedRecyclerViewAdapter.Section(5,"Section 2"));
sections.add(new SimpleSectionedRecyclerViewAdapter.Section(12,"Section 3"));
sections.add(new SimpleSectionedRecyclerViewAdapter.Section(14,"Section 4"));
sections.add(new SimpleSectionedRecyclerViewAdapter.Section(20,"Section 5"));

//Add your adapter to the sectionAdapter
SimpleSectionedRecyclerViewAdapter.Section[] dummy = new SimpleSectionedRecyclerViewAdapter.Section[sections.size()];
SimpleSectionedRecyclerViewAdapter mSectionedAdapter = new
          SimpleSectionedRecyclerViewAdapter(this,R.layout.section,R.id.section_text,mAdapter);
mSectionedAdapter.setSections(sections.toArray(dummy));

//Apply this adapter to the RecyclerView
mRecyclerView.setAdapter(mSectionedAdapter);
票数 17
EN

Stack Overflow用户

发布于 2016-04-26 01:03:18

如果您正在寻找一种不需要使用硬编码的标题/行索引的解决方案,您可以使用库SectionedRecyclerViewAdapter

首先创建一个Section类来对项目进行分组:

代码语言:javascript
复制
class MySection extends StatelessSection {

    String title;
    List<String> list;

    public MySection(String title, List<String> list) {
        // call constructor with layout resources for this Section header, footer and items 
        super(R.layout.section_header, R.layout.section_item);

        this.title = title;
        this.list = list;
    }

    @Override
    public int getContentItemsTotal() {
        return list.size(); // number of items of this section
    }

    @Override
    public RecyclerView.ViewHolder getItemViewHolder(View view) {
        // return a custom instance of ViewHolder for the items of this section
        return new MyItemViewHolder(view);
    }

    @Override
    public void onBindItemViewHolder(RecyclerView.ViewHolder holder, int position) {
        MyItemViewHolder itemHolder = (MyItemViewHolder) holder;

        // bind your view here
        itemHolder.tvItem.setText(list.get(position));
    }

    @Override
    public RecyclerView.ViewHolder getHeaderViewHolder(View view) {
        return new SimpleHeaderViewHolder(view);
    }

    @Override
    public void onBindHeaderViewHolder(RecyclerView.ViewHolder holder) {
        MyHeaderViewHolder headerHolder = (MyHeaderViewHolder) holder;

        // bind your header view here
        headerHolder.tvItem.setText(title);
    }

    public void addRow(String item) {
        this.list.add(item);
    }

}

然后使用您的部分设置RecyclerView:

代码语言:javascript
复制
// Create an instance of SectionedRecyclerViewAdapter 
SectionedRecyclerViewAdapter sectionAdapter = new SectionedRecyclerViewAdapter();

// Create your sections with the list of data
MySection favoritesSection = new MySection("Favorites", favoritesList);
MySection contactsSection = new MySection("Add Favorites", contactsList);

// Add your Sections to the adapter
sectionAdapter.addSection(favoritesSection);
sectionAdapter.addSection(contactsSection);

// Set up your RecyclerView with the SectionedRecyclerViewAdapter
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
recyclerView.setAdapter(sectionAdapter);

您还可以在不重新计算索引的情况下将新行添加到节中:

代码语言:javascript
复制
favoritesSection.addRow("new item");
sectionAdapter.notifyDataSetChanged();
票数 13
EN

Stack Overflow用户

发布于 2016-12-23 14:22:25

让我尝试提出一个本机解决方案。

您必须有一个带有isFavourite标志的联系人的列表,如下所示

代码语言:javascript
复制
private class Contacts{
  private String name;
  private String phoneNumber;
  private boolean isFavourite;
}

根据isFavourite和contactName like this对数组进行排序

将该列表传递给您的ContactRecyclerAdapter。并对标题和项目使用两种不同的布局

票数 5
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/30752980

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