forked from organicmaps/organicmaps
[android] Approximate architecture of collections adapter.
This commit is contained in:
velichkomarija
Aleksandr Zatsepin
parent
4542da0821
commit
0008eb115e
2 changed files with 296 additions and 0 deletions
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package com.mapswithme.maps.bookmarks;
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import android.content.Context;
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import android.content.res.Resources;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.recyclerview.widget.RecyclerView;
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import com.mapswithme.maps.R;
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import com.mapswithme.maps.adapter.OnItemClickListener;
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import com.mapswithme.maps.bookmarks.data.BookmarkCategory;
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import com.mapswithme.maps.bookmarks.data.BookmarkManager;
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import java.util.List;
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public class BookmarkCollectionAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>
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{
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private final static int TYPE_HEADER_ITEM = 0;
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private final static int TYPE_COLLECTION_ITEM = 1;
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private final static int TYPE_CATEGORY_ITEM = 2;
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@NonNull
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private final Context mContext;
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@NonNull
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private List<BookmarkCategory> mItemsCollection;
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@NonNull
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private List<BookmarkCategory> mItemsCategory;
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@NonNull
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private int mSectionCount;
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@NonNull
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private int mCollectionSectionIndex;
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@NonNull
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private int mCategorySectionIndex;
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@Nullable
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private OnItemClickListener<BookmarkCategory> mClickListener;
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static class SectionPosition
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{
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static final int INVALID_POSITION = -1;
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private final int mSectionIndex;
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private final int mItemIndex;
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SectionPosition(int sectionInd, int itemInd)
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{
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mSectionIndex = sectionInd;
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mItemIndex = itemInd;
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}
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int getSectionIndex()
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{
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return mSectionIndex;
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}
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int getItemIndex()
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{
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return mItemIndex;
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}
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boolean isTitlePosition()
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{
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return mSectionIndex != INVALID_POSITION && mItemIndex == INVALID_POSITION;
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}
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boolean isItemPosition()
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{
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return mSectionIndex != INVALID_POSITION && mItemIndex != INVALID_POSITION;
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}
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}
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private void calculateSections()
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{
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mCollectionSectionIndex = SectionPosition.INVALID_POSITION;
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mCategorySectionIndex = SectionPosition.INVALID_POSITION;
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mSectionCount = 0;
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if (mItemsCollection.size() > 0)
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mCollectionSectionIndex = mSectionCount++;
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if (mItemsCategory.size() > 0)
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mCategorySectionIndex = mSectionCount++;
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}
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public String getTitle(int sectionIndex, @NonNull Resources rs)
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{
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if (sectionIndex == mCollectionSectionIndex)
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// TODO (@velichkomarija): Replace categories
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return rs.getString(R.string.categories);
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return rs.getString(R.string.categories);
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}
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public int getItemsCount(int sectionIndex)
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{
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if (sectionIndex == mCollectionSectionIndex)
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return mItemsCollection.size();
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if (sectionIndex == mCategorySectionIndex)
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return mItemsCategory.size();
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return 0;
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}
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public int getItemsType(int sectionIndex)
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{
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if (sectionIndex == mCollectionSectionIndex)
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return TYPE_COLLECTION_ITEM;
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if (sectionIndex == mCategorySectionIndex)
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return TYPE_CATEGORY_ITEM;
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throw new AssertionError("Invalid section index: " + sectionIndex);
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}
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@NonNull
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private List<BookmarkCategory> getItemsListByType(int type)
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{
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if (type == TYPE_COLLECTION_ITEM)
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{
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return mItemsCollection;
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}
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else
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{
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return mItemsCategory;
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}
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}
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@NonNull
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public BookmarkCategory getCategoryByPosition(int position, int type)
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{
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List<BookmarkCategory> categories = getItemsListByType(type);
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if (position < 0 || position > categories.size() - /* header */ 1)
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throw new ArrayIndexOutOfBoundsException(position);
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return categories.get(position);
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}
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BookmarkCollectionAdapter(@NonNull Context context,
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@NonNull List<BookmarkCategory> itemsCategories,
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@NonNull List<BookmarkCategory> itemsCollection)
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{
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mContext = context;
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mItemsCategory = itemsCategories;
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mItemsCollection = itemsCollection;
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calculateSections();
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}
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public void setOnClickListener(@Nullable OnItemClickListener<BookmarkCategory> listener)
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{
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mClickListener = listener;
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}
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private SectionPosition getSectionPosition(int position)
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{
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int startSectionRow = 0;
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for (int i = 0; i < mSectionCount; ++i)
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{
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int sectionRowsCount = getItemsCount(i) + /* header */ 1;
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if (startSectionRow == position)
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return new SectionPosition(i, SectionPosition.INVALID_POSITION);
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if (startSectionRow + sectionRowsCount > position)
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return new SectionPosition(i, position - startSectionRow - /* header */ 1);
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startSectionRow += sectionRowsCount;
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}
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return new SectionPosition(SectionPosition.INVALID_POSITION, SectionPosition.INVALID_POSITION);
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}
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@NonNull
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@Override
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public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType)
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{
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LayoutInflater inflater = LayoutInflater.from(parent.getContext());
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RecyclerView.ViewHolder holder = null;
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if (viewType == TYPE_HEADER_ITEM)
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{
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holder = new Holders.HeaderViewHolder(inflater.inflate(R.layout.item_bookmark_group_list_header,
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parent, false));
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// TODO (@velichkomarija) : Add click listener for this.
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}
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if (viewType == TYPE_CATEGORY_ITEM || viewType == TYPE_COLLECTION_ITEM)
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{
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holder = new Holders.CollectionViewHolder(inflater.inflate(R.layout.item_bookmark_collection,
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parent, false));
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// TODO (@velichkomarija): add click listeners.
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}
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if (holder == null)
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throw new AssertionError("Unsupported view type: " + viewType);
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return holder;
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}
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@Override
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public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position)
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{
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int type = getItemViewType(position);
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if (type == TYPE_HEADER_ITEM)
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bindHeaderHolder(holder);
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else
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bindCollectionHolder(holder, position, type);
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}
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private void bindCollectionHolder(RecyclerView.ViewHolder holder, int position, int type)
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{
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final BookmarkCategory category = getCategoryByPosition(position, type);
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Holders.CollectionViewHolder collectionViewHolder = (Holders.CollectionViewHolder) holder;
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collectionViewHolder.setCategory(category);
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collectionViewHolder.setName(category.getName());
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bindSize(collectionViewHolder, category);
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collectionViewHolder.setVisibilityState(category.isVisible());
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// TODO (@velichkomarija): ToggleVisibilityClickListener for visibility.
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}
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private void bindSize(Holders.CollectionViewHolder holder, BookmarkCategory category)
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{
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BookmarkCategory.CountAndPlurals template = category.getPluralsCountTemplate();
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holder.setSize(template.getPlurals(), template.getCount());
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}
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private void bindHeaderHolder(@NonNull RecyclerView.ViewHolder holder)
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{
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Holders.HeaderViewHolder headerViewHolder = (Holders.HeaderViewHolder) holder;
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// TODO: (@velichkomarija) : Hide and All button.
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}
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@Override
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public int getItemViewType(int position)
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{
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SectionPosition sectionPosition = getSectionPosition(position);
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if (sectionPosition.isTitlePosition())
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return TYPE_HEADER_ITEM;
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if (sectionPosition.isItemPosition())
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return getItemsType(sectionPosition.getSectionIndex());
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throw new AssertionError("Position not found: " + position);
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}
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@Override
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public int getItemCount()
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{
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return mItemsCategory.size() + mItemsCollection.size();
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}
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}
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@ -122,6 +122,60 @@ public class Holders
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}
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}
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static class CollectionViewHolder extends RecyclerView.ViewHolder
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{
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@NonNull
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private final TextView mName;
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@NonNull
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CheckBox mVisibilityMarker;
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@NonNull
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TextView mSize;
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@Nullable
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private BookmarkCategory mEntity;
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CollectionViewHolder(@NonNull View root)
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{
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super(root);
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mName = root.findViewById(R.id.name);
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mVisibilityMarker = root.findViewById(R.id.checkbox);
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mSize = root.findViewById(R.id.size);
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}
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void setVisibilityState(boolean visible)
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{
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mVisibilityMarker.setChecked(visible);
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}
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void setVisibilityListener(@Nullable View.OnClickListener listener)
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{
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mVisibilityMarker.setOnClickListener(listener);
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}
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void setName(@NonNull String name)
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{
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mName.setText(name);
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}
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void setSize(@PluralsRes int phrase, int size)
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{
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mSize.setText(mSize.getResources().getQuantityString(phrase, size, size));
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}
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void setCategory(@NonNull BookmarkCategory entity)
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{
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mEntity = entity;
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}
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@NonNull
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public BookmarkCategory getEntity()
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{
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if (mEntity == null)
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throw new AssertionError("BookmarkCategory is null");
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return mEntity;
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}
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}
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static class CategoryViewHolder extends RecyclerView.ViewHolder
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{
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@NonNull
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