分组与自定义不同item组合类型.md

#效果 #代码 实体类必须实现SectionMultiEntity，在设置数据的时候，需要给每一个数据设置itemType, 泛型中实体类为主体item真正数据源

public class SectionMultipleItem extends SectionMultiEntity<Video> implements MultiItemEntity {

    public static final int TEXT = 1;
    public static final int IMG_TEXT = 2;
    private int itemType;        // 附加字段方便处理所需逻辑
    private boolean isMore;      // 附加字段方便处理所需逻辑
    private Video video;         // 主体数据实体类型

    // 创建section 数据
    public SectionMultipleItem(boolean isHeader, String header, boolean isMore) {
        super(isHeader, header);
        this.isMore = isMore;
    }

    // 创建主体item数据
    public SectionMultipleItem(int itemType, Video video) {
        super(video);
        this.video = video;
        this.itemType = itemType;
    }

    public boolean isMore() {
        return isMore;
    }

    public void setMore(boolean more) {
        isMore = more;
    }

    public Video getVideo() {
        return video;
    }

    public void setVideo(Video video) {
        this.video = video;
    }

    @Override
    public int getItemType() {
        return itemType;
    }
}

在构造里面addItemType绑定type和layout的关系，adapter构造需要传入head的布局id，在convert方法里面加载item数据，在convertHead方法里面加载head数据

public class SectionMultipleItemAdapter extends BaseSectionMultiItemQuickAdapter<SectionMultipleItem, BaseViewHolder> {
    /**
     * init SectionMultipleItemAdapter
     * 1. add your header resource layout
     * 2. add some kind of items
     *
     * @param sectionHeadResId The section head layout id for each item
     * @param data             A new list is created out of this one to avoid mutable list
     */
    public SectionMultipleItemAdapter(int sectionHeadResId, List data) {
        super(sectionHeadResId, data);
        addItemType(SectionMultipleItem.TEXT, R.layout.item_text_view);
        addItemType(SectionMultipleItem.IMG_TEXT, R.layout.item_img_text_view);
    }

    @Override
    protected void convertHead(BaseViewHolder helper, final SectionMultipleItem item) {
        // deal with header viewHolder
        helper.setText(R.id.header, item.header);
        helper.setVisible(R.id.more, item.isMore());
        helper.addOnClickListener(R.id.more);
    }

    @Override
    protected void convert(BaseViewHolder helper, SectionMultipleItem item) {
        // deal with multiple type items viewHolder
        helper.addOnClickListener(R.id.card_view);
        switch (helper.getItemViewType()) {
            case MultipleItem.TEXT:
                helper.setText(R.id.tv, item.getVideo().getName());
                break;
            case MultipleItem.IMG_TEXT:
                switch (helper.getLayoutPosition() % 2) {
                    case 0:
                        helper.setImageResource(R.id.iv, R.mipmap.animation_img1);
                        break;
                    case 1:
                        helper.setImageResource(R.id.iv, R.mipmap.animation_img2);
                        break;
                }
                break;
        }
    }
}

section multiple类型需要继承特定实体类，满足特定规则SectionMultiEntity,

  public static List<SectionMultipleItem> getSectionMultiData() {
        List<SectionMultipleItem> list = new ArrayList<>();
        Video video = new Video(HTTPS_AVATARS1_GITHUBUSERCONTENT_COM_LINK, CYM_CHAD);

        // 以下为列表的一个section item数据
        // 每个item包含一个section + n 个 video 数据。 video 为主体item所需数据类型
        // add section data
        list.add(new SectionMultipleItem(true, "Section 1", true));
        // add multiple type item data ---start---
        list.add(new SectionMultipleItem(SectionMultipleItem.TEXT, new Video(HTTPS_AVATARS1_GITHUBUSERCONTENT_COM_LINK, "video_id_0")));
        list.add(new SectionMultipleItem(SectionMultipleItem.TEXT, new Video(HTTPS_AVATARS1_GITHUBUSERCONTENT_COM_LINK, "video_id_1")));
        list.add(new SectionMultipleItem(SectionMultipleItem.IMG_TEXT, new Video(HTTPS_AVATARS1_GITHUBUSERCONTENT_COM_LINK, "video_id_2")));
        // ---end---

        list.add(new SectionMultipleItem(true, "Section 2", false));
        list.add(new SectionMultipleItem(SectionMultipleItem.IMG_TEXT, video));
        list.add(new SectionMultipleItem(SectionMultipleItem.IMG_TEXT, video));
        list.add(new SectionMultipleItem(SectionMultipleItem.TEXT, video));
        list.add(new SectionMultipleItem(true, "Section 3", false));
        list.add(new SectionMultipleItem(SectionMultipleItem.IMG_TEXT, video));
        list.add(new SectionMultipleItem(SectionMultipleItem.TEXT, video));
        return list;
    }

数据回调，可根据adapter数据源获取主体item实体类

      sectionAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
            @Override
            public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
                SectionMultipleItem item = (SectionMultipleItem) adapter.getData().get(position);
                switch (view.getId()) {
                    case R.id.card_view:
                        // 获取主体item相应数据给后期使用
                        if (item.getVideo() != null) {
                            Toast.makeText(SectionMultipleItemUseActivity.this, item.getVideo().getName(), Toast.LENGTH_LONG).show();
                        }
                        break;
                    default:
                        Toast.makeText(SectionMultipleItemUseActivity.this, "OnItemChildClickListener " + position, Toast.LENGTH_LONG).show();
                        break;

                }
            }
        });