RecyclerView的Item和Item内的控件点击处理

需求场景：RecyclerView的Item需要点击，或者Item中的某个控件需要点击，或者两者同时需要点击处理。

一、adapter代码如下：

package com.ldw.adapter;  

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;  

import com.ldw.test.R;  

import java.util.List;  

/**
 *
 * Created by ldw on 2017/12/1.
 */  

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

    private List<Object> dataList;
    private Context context;  

    public ChapterAdapter(Context context, List<Object> list) {
        this.context = context;
        dataList = list;
    }  

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

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
        ItemHolder itemHolder = (ItemHolder) holder;
        itemHolder.itemView.setTag(position);
        itemHolder.tvPractise.setTag(position);
    }  

    @Override
    public long getItemId(int i) {
        return i;
    }  

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

    public class ItemHolder extends RecyclerView.ViewHolder {  

        public TextView tvPractise;  

        public ItemHolder(View itemView) {
            super(itemView);
            tvPractise = itemView.findViewById(R.id.tv_item_chapter_practise);  

            //将创建的View注册点击事件
            itemView.setOnClickListener(ChapterAdapter.this);
            tvPractise.setOnClickListener(ChapterAdapter.this);
        }
    }  

    ////////////////////////////以下为item点击处理///////////////////////////////  

    private OnRecyclerViewItemClickListener mOnItemClickListener = null;  

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

    /** item里面有多个控件可以点击 */
    public enum ViewName {
        ITEM,
        PRACTISE
    }  

    public interface OnRecyclerViewItemClickListener {
        void onClick(View view, ViewName viewName, int position);
    }  

    @Override
    public void onClick(View v) {
        //注意这里使用getTag方法获取数据
        int position = (int) v.getTag();
        if (mOnItemClickListener != null) {
            switch (v.getId()){
                case R.id.tv_item_chapter_practise:
                    mOnItemClickListener.onClick(v, ViewName.PRACTISE, position);
                    break;
                default:
                    mOnItemClickListener.onClick(v, ViewName.ITEM, position);
                    break;
            }
        }
    }
}  

二、Activity中的使用方式如下：

RecyclerView recyclerView = (RecyclerView) findViewById(R.id.rv_course_chapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(CourseActivity.this));
        ChapterAdapter chapterAdapter = new ChapterAdapter(CourseActivity.this, dataList);
        recyclerView.setAdapter(chapterAdapter);
        chapterAdapter.setOnItemClickListener(new ChapterAdapter.OnRecyclerViewItemClickListener() {
            @Override
            public void onClick(View view, ChapterAdapter.ViewName viewName, int position) {
                //在此处理点击事件即可，viewName可以区分是item还是内部控件
                        switch (viewName){

                            case ITEM:
                                ToastUtils.showToast(context,"进入详情");

                                break;
                        }
            }
        });