1、仿照微信空间上传图片，显示图片数量以及超过最大，上传按钮隐藏功能

2、上效果图

3、上代码，主要是Adapter类

/**
 * Created by zhangyinlei on 2018/3/2 0002.
 */
public class AlbumSelectedShowAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private static int TYPE_ADD = 0;//添加图片
    private static int TYPE_COMMON = 1;//普通图片展示

    private Context context;
    private LayoutInflater mLayoutInflater;

    //data
    private int mMaxAlbum;//最大选择图片的数量
    private List<String> mStringList;//图片url集合

    public AlbumSelectedShowAdapter(Context context, List<String> mStringList, int maxAlbum) {
        this.context = context;
        this.mStringList = mStringList;
        this.mMaxAlbum = maxAlbum;
        this.mLayoutInflater = LayoutInflater.from(context);
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == TYPE_ADD) {
            return new ItemViewHolderAdd(mLayoutInflater.inflate(R.layout.item_album_selected_add, parent, false));
        } else {
            return new ItemViewHolderCommon(mLayoutInflater.inflate(R.layout.item_album_selected_common, parent, false));
        }
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        View itemView = null;
        ViewGroup.LayoutParams layoutParams = holder.itemView.getLayoutParams();
        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
        layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
        if (holder instanceof ItemViewHolderAdd) {
            ItemViewHolderAdd itemViewHolderAdd = (ItemViewHolderAdd) holder;
            if (position >= mMaxAlbum) {
                layoutParams.width = 0;
                layoutParams.height = 0;    
                itemViewHolderAdd.itemView.setVisibility(View.GONE);
            } else {
                itemViewHolderAdd.tvNum.setText(position + "/" + mMaxAlbum);
                itemViewHolderAdd.itemView.setVisibility(View.VISIBLE);
                itemView = ((ItemViewHolderAdd) holder).itemView;
            }
        } else if (holder instanceof ItemViewHolderCommon) {
            String url = mStringList.get(position);
            Glide.with(context).load(url).apply(RequestOptions.centerCropTransform()).transition(withCrossFade()).into(((ItemViewHolderCommon) holder).ivCommon);
            itemView = ((ItemViewHolderCommon) holder).itemView;
        }
        if (mOnItemClickListener != null && null != itemView) {
            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int position = holder.getLayoutPosition();
                    mOnItemClickListener.onItemClick(holder.itemView, position);
                }
            });
        }
    }

    @Override
    public int getItemViewType(int position) {
        return position == mStringList.size() ? TYPE_ADD : TYPE_COMMON;
    }

    @Override
    public int getItemCount() {
        return mStringList.size() + 1;//加一代表最后一个添加图片按钮
    }

    public static class ItemViewHolderAdd extends RecyclerView.ViewHolder {
        private TextView tvNum;

        public ItemViewHolderAdd(View itemView) {
            super(itemView);
            tvNum = itemView.findViewById(R.id.tv_album_selected_num);
        }
    }

    public static class ItemViewHolderCommon extends RecyclerView.ViewHolder {
        private ImageView ivCommon;

        public ItemViewHolderCommon(View itemView) {
            super(itemView);
            ivCommon = itemView.findViewById(R.id.iv_album_selected);
        }
    }

    private OnItemClickListener mOnItemClickListener;

    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        mOnItemClickListener = onItemClickListener;
    }

    public interface OnItemClickListener {
        void onItemClick(View view, int position);
    }

}

在Activity中使用，recycleView

mStringList = new ArrayList<>();
        mAlbumSelectedShowAdapter = new AlbumSelectedShowAdapter(this, mStringList, mMaxAlbum);
        mRvAlbumSelected.setLayoutManager(new GridLayoutManager(this, 4));
        mRvAlbumSelected.setHasFixedSize(true);
        mRvAlbumSelected.setAdapter(mAlbumSelectedShowAdapter);
        mAlbumSelectedShowAdapter.setOnItemClickListener(new AlbumSelectedShowAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
                if (mStringList.size() == position) {
                //选择相册功能
                    AlbumUtils.choosePicture(SuggestionActivity.this, false, mMaxAlbum - mStringList.size(), true);
                } else {
                    //图片展示界面
                }
            }
        });
    }