RecyclerView 中的 ArrayList 使用 sectioned-recyclerview

Question

在 Head 中仅在 TextView 和按钮中，在 Item 中仅在 LinearLayout 中。

此代码后：

ViewGroup mContainerParent = (ViewGroup) mainContainerArr.get(section).getParent();
if (mContainerParent != null) {
    mContainerParent.removeView(mainContainerArr.get(section));
}

所有观点都开始转变。我认为需要做一些通知，但我不知道是哪一个。

我尝试执行 notifySectionChanged(section)、notifyDataSetChanged() 等，但它不起作用。

代码：

头：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/details_description_head_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <ImageView
        android:id="@+id/details_description_head_caret"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</RelativeLayout>

项目：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:id="@+id/details_description_main_container"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
</LinearLayout>

适配器：

public class QuestDetailsRecyclerAdapter extends SectionedRecyclerViewAdapter<QuestDetailsRecyclerHolder> {

    private ArrayList<String> headTitleArr;
    private ArrayList<LinearLayout> mainContainerArr;

    int addSection(
            String head,
            LinearLayout container
    ) {
        // Add section
        headTitleArr.add(head);
        mainContainerArr.add(container);

        // Notify
        notifyDataSetChanged();

        return mainContainerArr.size() - 1;
    }

    QuestDetailsRecyclerAdapter(
            ArrayList<String> headTitleArr,
            ArrayList<LinearLayout> mainContainerArr
    ) {
        this.headTitleArr = headTitleArr;
        this.mainContainerArr = mainContainerArr;
    }

    @Override
    public int getSectionCount() {
        return headTitleArr.size();
    }

    @Override
    public int getItemCount(int section) {
        return mainContainerArr.get(section).getChildCount();
    }

    @Override
    public void onBindHeaderViewHolder(
            QuestDetailsRecyclerHolder holder,
            int section,
            boolean expanded
    ) {
        holder.title.setText(headTitleArr.get(section));
    }

    @Override
    public void onBindViewHolder(
            QuestDetailsRecyclerHolder holder,
            int section,
            int relativePosition,
            int absolutePosition
    ) {
        // Delete old parent if exists
        ViewGroup mContainerParent = (ViewGroup) mainContainerArr.get(section).getParent();
        if (mContainerParent != null) {
            mContainerParent.removeView(mainContainerArr.get(section));
        }

        // Add container (layout)
        holder.mainContainer.addView(mainContainerArr.get(section));
    }

    @Override
    public QuestDetailsRecyclerHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // Get layout id
        int layoutId;
        switch (viewType) {
            case VIEW_TYPE_HEADER:
                layoutId = R.layout.details_description_header;
                break;
            case VIEW_TYPE_ITEM:
                layoutId = R.layout.details_description_main;
                break;
            default:
                layoutId = R.layout.details_description_main;
        }

        // Inflate layout
        View view = LayoutInflater.from(parent.getContext())
                .inflate(layoutId, parent, false);

        return new QuestDetailsRecyclerHolder(view, this);
    }
}

Answer 1

我用多个项目类型解决了这个问题。

Tutorial

Solution commit in my project

RecyclerView 中的 ArrayList 使用 sectioned-recyclerview

ArrayList in RecyclerView using sectioned-recyclerview

java

android

android-recyclerview

sectionedrecyclerviewadapter