一、直接在onBindViewHolder方法中实现点击事件即可。（实现的是item中的子组件的点击事件）

二、通过自定义接口方法。

1、自定义接口：

/**
* 自定义接口
*/
public interface OnRecyclerViewItemClickListener {
public void onItemClick(View view, int postion);
}

2、在自定义的ViewHolder中实现onClickListener接口。item布局view会通过ViewHolder的构造函数的参数传递过来，所以，可以给这个view添加onClickListener点击事件接口，并实现相应的接口方法。

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

private TextView tvCategory;
private OnRecyclerViewItemClickListener mListener;// 声明自定义的接口

public ViewHolder(View itemView, OnRecyclerViewItemClickListener mListener) {
    super(itemView);
    itemView.setOnClickListener(this);
    this.mListener = mListener;
    tvCategory = itemView.findViewById(R.id.Layout\_Item\_CityLocation\_Category\_tvTitle);
}

@Override
public void onClick(View v) {
    //getAdapterPosition()为Viewholder自带的一个方法，用来获取RecyclerView当前的位置，将此作为参数，传出去
    mListener.onItemClick(v, getAdapterPosition());
}

}

3、自定义public方法用于将接口暴露给外部。

/**
* 定义public方法用以将接口暴露给外部
* @param listener
*/
public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {
this.myClickItemListener = listener;
}

4、在活动中调用。

categoryListAdapter.setOnItemClickListener(new CategoryListAdapter.OnRecyclerViewItemClickListener() {
@Override
public void onItemClick(View view, int postion) {
Toast.makeText(mContext, postion + "", Toast.LENGTH_SHORT).show();
resetBooleanList(booleanList);
booleanList.set(postion, true);
categoryListAdapter.notifyDataSetChanged();
}
});

RecyclerView的数据适配器的完整代码如下：

package com.deepreality.corporation_app.Adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.deepreality.corporation_app.R;

import java.util.List;

public class CategoryListAdapter extends RecyclerView.Adapter {

private Context mContext;
private List<String> strList;
private List<Boolean> booleanList;
private ViewHolder viewHolder;
private OnRecyclerViewItemClickListener myClickItemListener;// 声明自定义的接口

public CategoryListAdapter(Context mContext, List<String> strList, List<Boolean> booleanList) {
    this.mContext = mContext;
    this.strList = strList;
    this.booleanList = booleanList;
}

@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(mContext).inflate(R.layout.layout\_item\_citylocation\_category, parent, false);
    viewHolder = new ViewHolder(view, myClickItemListener);
    return viewHolder;
}

/\*\*
 \* 定义public方法用以将接口暴露给外部
 \* @param listener
 \*/
public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {
    this.myClickItemListener = listener;
}

@Override
public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
    holder.tvCategory.setText(strList.get(position));
    if (booleanList.get(position)) {
        holder.tvCategory.setBackgroundResource(R.color.colorWhite);
    } else {
        holder.tvCategory.setBackgroundResource(R.color.colorLightGray);
    }
}

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

/\*\*
 \* 自定义接口
 \*/
public interface OnRecyclerViewItemClickListener {
    public void onItemClick(View view, int postion);
}

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

    private TextView tvCategory;
    private OnRecyclerViewItemClickListener mListener;// 声明自定义的接口

    public ViewHolder(View itemView, OnRecyclerViewItemClickListener mListener) {
        super(itemView);
        itemView.setOnClickListener(this);
        this.mListener = mListener;
        tvCategory = itemView.findViewById(R.id.Layout\_Item\_CityLocation\_Category\_tvTitle);
    }

    @Override
    public void onClick(View v) {
        //getAdapterPosition()为Viewholder自带的一个方法，用来获取RecyclerView当前的位置，将此作为参数，传出去
        mListener.onItemClick(v, getAdapterPosition());
    }
}

}