横向RecyclerView

GalleryAccountAdapter.java

public class GalleryAccountAdapter extends RecyclerView.Adapter<GalleryAccountAdapter.ViewHolder> {
    private static final String tag = GalleryAccountAdapter.class.getSimpleName();

    private LayoutInflater mInflater;
    private RelativeLayout relativeLayout;
    private OnItemClickListener mOnItemClickListener;

    // 列表项布局id
    private int item_ResID;
    private List<HistoryAccount> historyAccountData;
    // 删除图标显隐标志
    private boolean bDelIconShow = false;

    public GalleryAccountAdapter(Context context, List<HistoryAccount> dataList, int ResId) {
        mInflater = LayoutInflater.from(context);
        historyAccountData = dataList;
        item_ResID = ResId;
    }

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

    public void setmOnItemClickListener(OnItemClickListener mOnItemClickListener) {
        this.mOnItemClickListener = mOnItemClickListener;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View view = mInflater.inflate(item_ResID, viewGroup, false);
        relativeLayout = (RelativeLayout) view.findViewById(R.id.item_account_layout);

        WindowManager wm = (WindowManager) MyApplication.getInstance().getApplicationContext()
                .getSystemService(Context.WINDOW_SERVICE);

        int width = wm.getDefaultDisplay().getWidth();
        int height = DimenUtil.dp2px(120);

        int dataSize = getItemCount();
        if (dataSize <= 2) {
            relativeLayout.setLayoutParams(new RelativeLayout.LayoutParams(width / dataSize, height));
        } else {
            relativeLayout.setLayoutParams(new RelativeLayout.LayoutParams(width / 3, height));
        }

        ViewHolder viewHolder = new ViewHolder(view);

        viewHolder.accountImg = (ImageView) view.findViewById(R.id.common_portrait_iv);
        viewHolder.deleteImg = (ImageView) view.findViewById(R.id.portrait_delete_icon);

        return viewHolder;
    }

    @Override
    public void onBindViewHolder(final ViewHolder viewHolder, int i) {
        AvatarUtil.setContacterAvatar(viewHolder.accountImg, null, historyAccountData.get(i).avatarUrl);

        if (bDelIconShow) {
            viewHolder.deleteImg.setVisibility(View.VISIBLE);
        } else {
            viewHolder.deleteImg.setVisibility(View.GONE);
        }

        if (mOnItemClickListener != null) {
            viewHolder.accountImg.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mOnItemClickListener.onItemClick(viewHolder.accountImg, viewHolder.getPosition());
                }
            });

            viewHolder.deleteImg.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    // int position = viewHolder.getLayoutPosition();
                    mOnItemClickListener.onItemClick(viewHolder.deleteImg, viewHolder.getPosition());
                }
            });

            viewHolder.accountImg.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    mOnItemClickListener.onItemLongClick(viewHolder.accountImg, viewHolder.getPosition());
                    bDelIconShow = true;
                    notifyDataSetChanged();
                    return false;
                }
            });
        }

    }

    @Override
    public int getItemCount() {
        return historyAccountData.size();
    }

    public HistoryAccount getItem(int pos) {
        return historyAccountData.get(pos);
    }

    public void setDeleteIconState(boolean isShow) {
        bDelIconShow = isShow;
    }

    public void removeData(int position) {
        Log.i(tag, "position: " + position + ",size: " + historyAccountData.size());

        historyAccountData.remove(position);
        notifyItemRemoved(position);
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        // 账户头像
        ImageView accountImg;
        // 删除图标
        ImageView deleteImg;

        public ViewHolder(View itemView) {
            super(itemView);
        }
    }
}