Android RecyclerView的多条目加载的点击事件

public class RecyclerViewAdapter extends RecyclerView.Adapter implements View.OnClickListener {

    private List mList;
    private PackagePreference mPreference;
    private OnRecyclerViewItemClickListener mListener;
    private static int mFlag;
    public final static int NO_CHECK = 0;
    public final static int CHECK = 1;
    public final static int PLUS = 2;

    public RecyclerViewAdapter(List list, int flag) {
        this.mList = list;
        this.mFlag = flag;
        mPreference = PackagePreference.getInstance(MyApplication.getContext());
    }
    /**
     * 渲染具体的ViewHolder
     *
     * @param parent   ViewHolder的容器
     * @param viewType 根据该标志实现渲染不同类型的ViewHolder
     * @return
     */
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        //加载数据item的布局，生成VH返回
        if (viewType == NO_CHECK) {
            return new NoCheckViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.card_no_check, parent, false));
        } else if (viewType == CHECK) {
            return new CheckViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.card_check, parent, false));
        } else if (viewType == PLUS) {
            return new PlusViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.card_plus, parent, false));
        } else {
            return null;
        }
    }

    /**
     * 绑定ViewHolder的数据
     *
     * @param holder
     * @param position
     */
    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        PackageMessage message = mList.get(position);
        //数据绑定
        if (holder instanceof NoCheckViewHolder) {
            bindNoCheckViewHolder(message, (NoCheckViewHolder) holder);
        } else if (holder instanceof CheckViewHolder) {
            bindCheckViewHolder(message, (CheckViewHolder) holder);
        }
        holder.itemView.setTag(position);
        holder.itemView.setOnClickListener(this);
    }

    @Override
    public int getItemCount() {
        if (null == mList) {
            return 0;
        }
        return mList.size();
    }

    /**
     * 决定元素的布局使用哪种类型
     *
     * @param position
     * @return 传递给onCreateViewHolder的第二个参数
     */
    @Override
    public int getItemViewType(int position) {
        if (mFlag == NO_CHECK) {
            if (position == mList.size() - 1) {
                return PLUS;
            }
            return NO_CHECK;
        } else if (mFlag == CHECK) {
            return CHECK;
        } else {
            return 100;
        }
    }

    private void bindNoCheckViewHolder(PackageMessage message, NoCheckViewHolder holder) {
        holder.tv.setText(message.getLabel());
        holder.img.setImageDrawable(message.getIcon());
    }

    private void bindCheckViewHolder(PackageMessage message, final CheckViewHolder holder) {
        holder.tv2.setText(message.getLabel());
        holder.img2.setImageDrawable(message.getIcon());
        final String packageName = message.getPackageName();
        holder.checkBox2.setChecked(mPreference.getPackageMessage(packageName));
        holder.checkBox2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (holder.checkBox2.isChecked()) {
                    mPreference.putPackageMessage(packageName, true);
                } else {
                    mPreference.putPackageMessage(packageName, false);
                }
            }
        });
    }

    public static class NoCheckViewHolder extends RecyclerView.ViewHolder {
        public ImageView img;
        public TextView tv;

        public NoCheckViewHolder(View itemView) {
            super(itemView);
            img = (ImageView) itemView.findViewById(R.id.img_card);
            tv = (TextView) itemView.findViewById(R.id.tv_card);
        }
    }

    public static class CheckViewHolder extends RecyclerView.ViewHolder {
        public CheckBox checkBox2;
        public ImageView img2;
        public TextView tv2;

        public CheckViewHolder(View itemView) {
            super(itemView);
            checkBox2 = (CheckBox) itemView.findViewById(R.id.checkbox_card2);
            img2 = (ImageView) itemView.findViewById(R.id.img_card2);
            tv2 = (TextView) itemView.findViewById(R.id.tv_card2);
        }
    }

    public static class PlusViewHolder extends RecyclerView.ViewHolder {
        public ImageView img_plus_card;

        public PlusViewHolder(View itemView) {
            super(itemView);
            img_plus_card = (ImageView) itemView.findViewById(R.id.img_plus_card);
        }
    }

    @Override
    public void onClick(View v) {
        if (null != mListener) {
            mListener.onItemClick(v, (Integer) v.getTag());
        }
    }

    public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {
        this.mListener = listener;
    }

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

由于RecyclerView没有item的点击事件，所以此处在Adapter里面添加item的点击事件，定义一个接口OnRecyclerViewItemClickListener，写一个抽象方法onItemClick(View view,int position)把当前item的position设置进去，在onBindView里面监听item的点击事件。