Android 单击时的Recyclerview空对象引用

我的适配器：

public class Adaptor extends RecyclerView.Adapter<Adaptor.Holder>{

private ArrayList<Winkel> winkels;
private LayoutInflater inflater;
private ImageView icon;
private ItemCLickCallback itemCLickCallback;

public interface ItemCLickCallback {
    void onItemClick(int p);
    void onSecItemClick(int p);

}

public void setItemCLickCallback(final ItemCLickCallback itemCLickCallback1){
    this.itemCLickCallback = itemCLickCallback;
}

public Adaptor (ArrayList<Winkel> winkels,Context c){
    this.inflater = LayoutInflater.from(c);
    this.winkels = winkels;
}


@Override
public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = inflater.inflate(R.layout.card_item, parent, false);
    return new Holder(view);
}

@Override
public void onBindViewHolder(Holder holder, int position) {
    Winkel winkel = winkels.get(position);
    holder.title.setText(winkel.getNaam());
    if (winkel.isFavourtite()){
        holder.icon.setImageResource(R.drawable.ic_star_black_18dp);
    }
    else{
        holder.icon.setImageResource(R.drawable.ic_star_border_black_18dp);
    }

}

@Override
public int getItemCount() {

    return winkels.size();
}

class Holder extends RecyclerView.ViewHolder implements View.OnClickListener{

    private TextView title;
    private View container;
    private ImageView icon;

    public Holder(View itemView) {
        super(itemView);

        title = (TextView)itemView.findViewById(R.id.lbl_item_text);
        container = itemView.findViewById(R.id.cont_item_root);
        icon = (ImageView) itemView.findViewById(R.id.im_item_icon_secondary);
        icon.setOnClickListener(this);
        container.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        if(v.getId()==R.id.cont_item_root){
            Log.d("lol",Integer.toString(getAdapterPosition()));
            itemCLickCallback.onItemClick(getAdapterPosition());

        }
        else{
            itemCLickCallback.onSecItemClick(getAdapterPosition());
        }
    }
}
}

错误消息：

java.lang.NullPointerException: Attempt to invoke interface method 'void com.example.hoofdgebruiker.winkelskortrijk.Utill.Adaptor$ItemCLickCallback.onItemClick(int)' on a null object reference.

我的代码一直在运行，我得到了recyclerview，这些项目都在其中，但是我不能单击其中任何一个而不得到这个错误，我不明白为什么。我做错了什么，它是一个空对象引用？我的两个日志都没有显示

编辑：此处使用的是我的回调方法：

@Override
public void onSuccess(ArrayList<Winkel> winkels) {
    mijnwinkels = winkels;
    Adaptor adaptor = new Adaptor(mijnwinkels, this.getActivity());
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this.getActivity()));
    mRecyclerView.addItemDecoration(new VerticalSpace(30));
    mRecyclerView.setAdapter(adaptor);
    adaptor.setItemCLickCallback(this);
}

@覆盖
成功时公开作废（ArrayList winkels）{
mijnwinkels=winkels；
Adaptor Adaptor=新适配器（mijnwinkels，this.getActivity（））；
mRecyclerView.setLayoutManager（新的LinearLayoutManager（this.getActivity（））；
mRecyclerView.附加装饰（新垂直空间（30））；
mRecyclerView.setAdapter（适配器）；
adapter.setItemCLickCallback（此选项）；
}

方法参数中有一个输入错误

public void setItemCLickCallback(final ItemCLickCallback itemCLickCallback1){
    this.itemCLickCallback = itemCLickCallback;
}

---

您需要itemCLickCallback1并分配itemCLickCallback（注意额外的'1'作为后缀的区别）。

@R.Zagórski我有一个参考，我添加了代码。我只是不知道我哪里做错了，我技术上知道如何修复nullpointerexception，我只是不知道如何在这段代码中修复它？：）谢谢你，非常愚蠢的错误，我正要重写整件事。谢谢

public void setItemCLickCallback(final ItemCLickCallback itemCLickCallback1){
    this.itemCLickCallback = itemCLickCallback;
}