尝试点击recyclerview项目。继续其他片段？

Question

当我尝试为我的recyclerview放置clicklistner时出现错误。在新的片段中打开有关该特定项目的信息。

这是我的代码：

模型类：

    public class Banner extends UserId implements Serializable {

        String mSliderImage;

        public Banner() {
        }

        public Banner(String mSliderImage) {
            this.mSliderImage = mSliderImage;
        }

        public String getmSliderImage() {
            return mSliderImage;
        }

        public void setmSliderImage(String mSliderImage) {
            this.mSliderImage = mSliderImage;
        }
    } 

适配器类：

    public class HeaderSliderAdapter extends RecyclerView.Adapter<HeaderSliderAdapter.ViewHolder> {
        public List<Banner> banners;
        public Context context;
        private HeaderSliderAdapter.OnItemClicked onClick;


        public HeaderSliderAdapter(Context context, List<Banner> banners) {

            this.banners = banners;
            this.context = context;
        }

        @Override
        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.home_header, parent, false);
            return new ViewHolder(view);
        }

        @Override
        public void onBindViewHolder(final ViewHolder holder, final int pos) {

            final int position = pos % banners.size();

            if (TextUtils.isEmpty(banners.get(pos).getmSliderImage())) {
                holder.mSliderImageView.setImageResource(R.drawable.app_logo);
            } else {
                Picasso.with(context)
                        .load(banners.get(pos).getmSliderImage())
                        .fit()
                        .into(holder.mSliderImageView, new Callback() {
                            @Override
                            public void onSuccess() {
                                holder.mBackgroundImage.setVisibility(View.GONE);
                            }

                            @Override
                            public void onError() {
                              holder.mBackgroundImage.setVisibility(View.VISIBLE);
                            }
                        });
            }

           holder.mSliderImageView.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View v) {
                   onClick.onItemClick(pos, banners.get(pos));
               }
           });
        }

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

        public void setOnClick(OnItemClicked onClick) {
            this.onClick = onClick;
        }

        public interface OnItemClicked {
            void onItemClick(int position, Banner passData);
        }

        public class ViewHolder extends RecyclerView.ViewHolder {

            public ImageView mSliderImageView,mBackgroundImage;
            public View click;
            View mView;


            public ViewHolder(View itemView) {
                super(itemView);
                mView = itemView;

                mSliderImageView = mView.findViewById(R.id.mSliderImage);
                mBackgroundImage = mView.findViewById(R.id.backgroundImage);

            }
        }

    }

Java Class:

    @Override
        public void onItemClick(int pos, Banner passData) {
            android.support.v4.app.FragmentManager fm = getFragmentManager();
            android.support.v4.app.FragmentTransaction ft = fm.beginTransaction();
            ft.add(R.id.fragment_container_dashboard, HeaderBannerInfo.newInstance(banners.get(pos).getmSliderImage()));
            ft.addToBackStack(null);  // this line responsible for adding fragment in backstack.
            ft.commit();
        }

我的logcat中出现错误：

java.lang.NullPointerException: Attempt to invoke interface method 'void com.example.info.lootbox.Adapter.HeaderSliderAdapter$OnItemClicked.onItemClick(int, com.example.info.lootbox.Model.Banner)' on a null object reference
        at com.example.info.lootbox.Adapter.HeaderSliderAdapter$2.onClick(HeaderSliderAdapter.java:66)

这是我的适配器的66号线

holder.mSliderImageView.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               onClick.onItemClick(pos, banners.get(pos));
           }
       });
    }