recycleview适配器

package com.example.unit1.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.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.unit1.R;
import com.example.unit1.bean.News;

import java.util.List;

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

final int item_one=1;
final int item_two=2;
List mList;
Context mContext;


public MyAdapter(List mList, Context mContext) {
    this.mList = mList;
    this.mContext = mContext;
}

@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
     View v=null;
  RecyclerView.ViewHolder holder = null;
    switch (i){
        case item_one:
            v = LayoutInflater.from(mContext).inflate(R.layout.xlist_item_one,null);
            holder=new ViewHolderOne(v);

            break;

        case item_two:
            v = LayoutInflater.from(mContext).inflate(R.layout.xlist_item_two,null);
            holder=new ViewHolderTwo(v);
            break;
    }
    v.setOnClickListener(this);
    return holder;
}

@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
    if( viewHolder instanceof ViewHolderOne){
        ((ViewHolderOne) viewHolder).textView1.setText(mList.get(i).getTitle());
    }else if(viewHolder instanceof ViewHolderTwo){

        //((ViewHolderTwo)viewHolder).imageView.setImageResource(R.mipmap.ic_launcher_round);
        Glide.with(mContext).load(mList.get(i).getThumbnail_pic_s()).into(((ViewHolderTwo)viewHolder).imageView);
        ((ViewHolderTwo)viewHolder).textView2.setText(mList.get(i).getTitle());

    }

    viewHolder.itemView.setTag(i);

}

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

@Override
public int getItemViewType(int position) {
    if(position%2==0){
        return item_one;

    }else{
        return item_two;
    }
}


class ViewHolderOne extends RecyclerView.ViewHolder{
    TextView textView1;
    public ViewHolderOne(@NonNull View itemView) {
        super(itemView);
        textView1=itemView.findViewById(R.id.tvname1);
    }
}
class ViewHolderTwo extends RecyclerView.ViewHolder{
    ImageView imageView;
    TextView textView2;
    public ViewHolderTwo(@NonNull View itemView) {
        super(itemView);
        imageView=itemView.findViewById(R.id.img);
        textView2=itemView.findViewById(R.id.tvname2);
    }
}
public interface  setOnclick{
    void setData(View view,int position);
}
private setOnclick setonclick ;
public void setOnclick(setOnclick onclick){
    this.setonclick=onclick;
}
@Override
public void onClick(View v) {
    if(setonclick!=null){
        setonclick.setData(v, (Integer) v.getTag());
    }
}

}