自己封装的 recyclerView的 BaseAdapter，带item点击和长按事件。

第一种是把创建viewholder的步骤给子类来做。

第二种是参照陈宇明的博客，试着只暴露给子类设置holder属性的方法。（还未测试条目中控件的点击事件能否成功）

代码如下：

/**
 * Created by star on 2016/7/28 0028.
 *
 */
public abstract class MyBaseRecAdapter<T extends RecyclerView.ViewHolder,E> extends RecyclerView.Adapter<T> {
    private static OnItemClickListener onItemClickListener;

    public static interface OnItemClickListener<E> {
        void onItemClick(View view, E bean);
        void onItemLongClick(View view, E bean);
    }

    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;
    }

    protected Context context;
    protected ArrayList<E> datas;
    protected int layoutID;

    public MyBaseRecAdapter(Context context, ArrayList<E> datas, int layoutID) {
        this.context = context;
        this.datas = datas;
        this.layoutID=layoutID;
    }

    @Override
    public T onCreateViewHolder(ViewGroup parent, int viewType){
        View itemView=View.inflate(context,layoutID,null);
        return getViewHolder(itemView);
    }

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

    @Override
    public void onBindViewHolder(final T holder, final int position){
        final E bean = datas.get(position);
        setValues(holder,bean);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (onItemClickListener != null) {
                onItemClickListener.onItemClick(holder.itemView, bean);
            }
            }
        });

        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                if (onItemClickListener != null) {
                onItemClickListener.onItemLongClick(holder.itemView, bean);
            }
                return true;
            }
        });
    }

    /**
     * 返回viewholder
     * @param itemView
     * @return
     */
    protected abstract T getViewHolder(View itemView);
    /**
     * 设置控件数据
     * @param holder
     * @param bean
     */
    protected abstract void setValues(T holder, E bean);

}

第二种,待完善：

/**
 * Created by star on 2016/7/28 0028.
 *
 */
public abstract class MyBaseAdapter_2<E> extends RecyclerView.Adapter<MyBaseAdapter_2.BaseViewHolder> {
    private static OnItemClickListener onItemClickListener;

    public static interface OnItemClickListener<E> {
        void onItemClick(View view, E bean);

        void onItemLongClick(View view, E bean);
    }

    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;
    }

    protected Context context;
    protected ArrayList<E> datas;
    protected int layoutID;

    public MyBaseAdapter_2(Context context, ArrayList<E> datas, int layoutID) {
        this.context = context;
        this.datas = datas;
        this.layoutID = layoutID;
    }

    @Override
    public MyBaseAdapter_2.BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = View.inflate(context, layoutID, null);
        return new BaseViewHolder(context, itemView);
    }

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

    @Override
    public void onBindViewHolder(final MyBaseAdapter_2.BaseViewHolder holder, final int position) {
        final E bean = datas.get(position);
        setValues(holder, bean);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (onItemClickListener != null) {
                    onItemClickListener.onItemClick(holder.itemView, bean);
                }
            }
        });

        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                if (onItemClickListener != null) {
                    onItemClickListener.onItemLongClick(holder.itemView, bean);
                }
                return true;
            }
        });
    }

    /**
     * 设置控件数据
     *
     * @param holder
     * @param bean
     */
    protected abstract void setValues(MyBaseAdapter_2.BaseViewHolder holder, E bean);

    static class BaseViewHolder extends RecyclerView.ViewHolder {
        private SparseArray<View> views;
        private Context context;

        public BaseViewHolder(Context context, View itemView) {
            super(itemView);
            this.context = context;
            views = new SparseArray<>();
        }

        protected <T extends View> T inflateView(int viewId) {
            View view = views.get(viewId);
            if (view == null) {
                view = itemView.findViewById(viewId);
                views.put(viewId,view);
            }
            return (T) view;
        }

        public BaseViewHolder setText(int viewId, CharSequence value) {
            TextView tv = inflateView(viewId);
            tv.setText(value);
            return this;
        }

        /**
         * 通过图片地址加载图片
         * @param viewId
         * @param imgUrl
         * @return
         */
        public BaseViewHolder setImgUrl(int viewId, String imgUrl) {
            ImageView img = inflateView(viewId);
            Glide.with(context).load(imgUrl).into(img);
            return this;
        }
        /**
         * 通过项目drawable中加载图片
         * @param viewId
         * @param imgResourceId
         * @return
         */
        public BaseViewHolder setImgUrl(int viewId, int imgResourceId) {
            ImageView img = inflateView(viewId);
            Glide.with(context).load(imgResourceId).into(img);
            return this;
        }
        public BaseViewHolder setOther(int viewId){
            inflateView(viewId);
            return this;
        }
        public View getView(int viewId){
            return views.get(viewId);
        }
    }

}