Android(8) RecyclerView适配器实现多布局item+item内部控件点击事件

@先看看效果是不是自己想要的吧@

 

==============>item及item内部控件点击事件不懂的可以先点击查看<==============

 

使用步骤：

第一步：添加RecyclerView适配器依赖

    compile 'com.android.support:recyclerview-v7:27.1.1'

第二步：布局文件里使用RecyclerView

第三步：创建两个item子布局填充item内容

itemone.xml

itemtwo.xml

第四步：定义一个实体类Data，作为Recyclerview的适配类型

package com.ied.recyclerview.entity;

public class Data {
    public static final int TYPE_ONE = 1;//类型1
    public static final int TYPE_TWO = 2;//类型2

    public int type;//item内容 类型

    public int icon;
    public String username;
    public String message;

    public Data(int type, int icon, String username, String message) {
        this.type = type;
        this.icon = icon;
        this.username = username;
        this.message = message;
    }

    public static int getTypeOne() {
        return TYPE_ONE;
    }

    public static int getTypeTwo() {
        return TYPE_TWO;
    }

    public int getType() {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }

    public int getIcon() {
        return icon;
    }

    public void setIcon(int icon) {
        this.icon = icon;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

第五步：创建自定义MyRecyclerViewAdapter适配器继承RecyclerView.Adapter

package com.ied.recyclerview.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.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.ied.recyclerview.R;
import com.ied.recyclerview.entity.Data;
import java.util.List;

public class MyRecyclerViewAdapter extends RecyclerView.Adapter{

    private List list;//数据源
    private Context context;//上下文

    public MyRecyclerViewAdapter(List list, Context context) {
        this.list = list;
        this.context = context;
    }

    @NonNull
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        //选择类型
        switch (viewType){
            case Data.TYPE_ONE:
                View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item,parent,false);
                return new OneViewHolder(view);
            case Data.TYPE_TWO:
                view = LayoutInflater.from(parent.getContext()).inflate(R.layout.itemtwo,parent,false);
                return new TwoViewHolder(view);
        }
        return null;
    }

    //绑定
    @Override
    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
   
    }

    //有多少个item？
    @Override
    public int getItemCount() {
        return list.size();
    }

    //item类型
    @Override
    public int getItemViewType(int position) {
        return list.get(position).type;
    }

    //=======================以下为item中的button控件点击事件处理===================================

    //第一步：自定义一个回调接口来实现Click和LongClick事件
    public interface OnItemClickListener  {
        void onItemClick(View v, int position);
        void onItemLongClick(View v);
    }

    public OnItemClickListener mOnItemClickListener;//第二步：声明自定义的接口

    //第三步：定义方法并暴露给外面的调用者
    public void setOnItemClickListener(OnItemClickListener  listener) {
        this.mOnItemClickListener  = listener;
    }
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    //第一个item类型
    class OneViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        private ImageView ivIcon;
        private TextView tvUsername, tvMessage;
        private Button btnAgree, btnRefuse;
        //private List list;
        public OneViewHolder(View itemView) {
            super(itemView);
            ivIcon = itemView.findViewById(R.id.iv_icon);
            tvUsername = itemView.findViewById(R.id.tv_username);
            tvMessage = itemView.findViewById(R.id.tv_message);
            btnAgree = itemView.findViewById(R.id.btn_agree);
            btnRefuse = itemView.findViewById(R.id.btn_refuse);
            // 为item及item内部控件添加点击事件
            itemView.setOnClickListener(this);
            btnAgree.setOnClickListener(this);
            btnRefuse.setOnClickListener(this);
        }
        @Override
        public void onClick(View v) {
            if (mOnItemClickListener != null) {
                mOnItemClickListener.onItemClick(v, getAdapterPosition());
            }
        }
    }
    
    //第二个item类型
    class TwoViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        private ImageView ivIcon;
        private TextView tvUsername;
        public TwoViewHolder(View itemView) {
            super(itemView);
            ivIcon = itemView.findViewById(R.id.iv_icon);
            tvUsername = itemView.findViewById(R.id.tv_username);
            // 为item添加点击事件
            itemView.setOnClickListener(this);
        }
        @Override
        public void onClick(View v) {
            if (mOnItemClickListener != null) {
                mOnItemClickListener.onItemClick(v, getAdapterPosition());
            }
        }
    }


}

 

第六步：在MainActivity中编写，初始化数据，设置适配器

 

package com.ied.recyclerview;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Toast;
import com.ied.recyclerview.adapter.MyRecyclerViewAdapter;
import com.ied.recyclerview.entity.Data;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity  {

    private RecyclerView rvRecyclerView;
    private MyRecyclerViewAdapter adapter;
    private List list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        initData();

        rvRecyclerView.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false));//控制布局为LinearLayout或者是GridView或者是瀑布流布局
        adapter = new MyRecyclerViewAdapter(list,this);
        rvRecyclerView.setAdapter(adapter);
        // 设置item及item中控件的点击事件
        adapter.setOnItemClickListener(MyItemClickListener);
    }

    private void initView() {
        rvRecyclerView = (RecyclerView) findViewById(R.id.rv_recyclerView);
    }
    private void initData() {
        list = new ArrayList<>();
        list.add(new Data(1,R.mipmap.ic_launcher, "username", "让我们成为好友吧！"));
        list.add(new Data(2,R.mipmap.ic_launcher, "username", "让我们成为好友吧！"));
        list.add(new Data(1,R.mipmap.ic_launcher, "username", "让我们成为好友吧！"));
        list.add(new Data(2,R.mipmap.ic_launcher, "username", "让我们成为好友吧！"));
        list.add(new Data(1,R.mipmap.ic_launcher, "username", "让我们成为好友吧！"));
    }

    /**
     * item＋item里的控件点击监听事件
     */
    private MyRecyclerViewAdapter.OnItemClickListener MyItemClickListener = new MyRecyclerViewAdapter.OnItemClickListener() {

        @Override
        public void onItemClick(View v, int position) {
            switch (v.getId()){
                case R.id.btn_agree:
                    Toast.makeText(MainActivity.this,"你点击了同意按钮"+(position+1),Toast.LENGTH_SHORT).show();
                    break;
                case R.id.btn_refuse:
                    Toast.makeText(MainActivity.this,"你点击了拒绝按钮"+(position+1),Toast.LENGTH_SHORT).show();
                    break;
                default:
                    Toast.makeText(MainActivity.this,"你点击了item按钮"+(position+1),Toast.LENGTH_SHORT).show();
                    break;
            }
        }

        @Override
        public void onItemLongClick(View v) {

        }
    };


}

最后成功实现多布局item及item内部控件的点击事件！！