能否帮我完善下面代码中的点击项事件 ，显示短的toast .谢放。代码如下：package com.blog; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.recyclerview.widget.RecyclerView; import com.blog.R; public class SimpleAdapter extends RecyclerView.Adapter<SimpleAdapter.ViewHolder> { private String[] examples; public interface ViewHolderListener { void onItemClicked(View view, int adapterPosition); } private final ViewHolderListener viewHolderListener; public SimpleAdapter(String[] strs, ViewHolderListener viewHolderListener) { examples = strs; this.viewHolderListener = viewHolderListener; } @NonNull @Override public SimpleAdapter.ViewHolder onCreateViewHolder (@NonNull ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()) .inflate(R.layout.list_item_layout, parent, false); return new SimpleAdapter.ViewHolder(view, viewHolderListener); } @Override public void onBindViewHolder(@NonNull SimpleAdapter.ViewHolder holder, int position) { holder.tvContent.setText(examples[position]); } @Override public int getItemCount() { return examples.length; } static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { private final TextView tvContent; private final ViewHolderListener viewHolderListener; ViewHolder(View itemView, ViewHolderListener viewHolderListener) { super(itemView); tvContent = itemView.findViewById(R.id.tv_content); this.viewHolderListener = viewHolderListener; itemView.findViewById(R.id.all_layout).setOnClickListener(this); } @Override public void onClick(View view) { if (null != viewHolderListener) { viewHolderListener.onItemClicked(view, getAdapterPosition()); } } } }

当用户点击列表项时，显示短时长的 Toast，你可以在 `ViewHolder` 类的 `onClick` 方法中添加以下代码：

@Override
public void onClick(View view) {
    if (null != viewHolderListener) {
        viewHolderListener.onItemClicked(view, getAdapterPosition());
        Toast.makeText(view.getContext(), "你点击了第 " + (getAdapterPosition() + 1) + " 个列表项", Toast.LENGTH_SHORT).show();
    }
}

这样，当用户点击列表项时，就会显示一个短时长的 Toast，提示用户点击了哪个列表项。完整的 `SimpleAdapter` 类如下：

package com.blog;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.blog.R;

public class SimpleAdapter extends RecyclerView.Adapter<SimpleAdapter.ViewHolder> {

    private String[] examples;

    public interface ViewHolderListener {
        void onItemClicked(View view, int adapterPosition);
    }

    private final ViewHolderListener viewHolderListener;

    public SimpleAdapter(String[] strs, ViewHolderListener viewHolderListener) {
        examples = strs;
        this.viewHolderListener = viewHolderListener;
    }

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

    @Override
    public void onBindViewHolder(@NonNull SimpleAdapter.ViewHolder holder, int position) {
        holder.tvContent.setText(examples[position]);
    }

    @Override
    public int getItemCount() {
        return examples.length;
    }

    static class ViewHolder extends RecyclerView.ViewHolder implements
            View.OnClickListener {

        private final TextView tvContent;
        private final ViewHolderListener viewHolderListener;

        ViewHolder(View itemView, ViewHolderListener viewHolderListener) {
            super(itemView);
            tvContent = itemView.findViewById(R.id.tv_content);
            this.viewHolderListener = viewHolderListener;
            itemView.findViewById(R.id.all_layout).setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            if (null != viewHolderListener) {
                viewHolderListener.onItemClicked(view, getAdapterPosition());
                Toast.makeText(view.getContext(), "你点击了第 " + (getAdapterPosition() + 1) + " 个列表项", Toast.LENGTH_SHORT).show();
            }
        }
    }
}