适配器新篇

package com.example.moutha.adapter;

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

import com.example.moutha.R;
import com.example.moutha.bean.Jsonbean;

import java.util.List;

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.Holder> implements View.OnClickListener {
    private List<Jsonbean.ResultBean> list;
    private Context context;
    private int sss = -1;

    public MyAdapter(List<Jsonbean.ResultBean> list, Context context) {
        this.list = list;
        this.context = context;
    }

    @NonNull
    @Override
    public Holder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        View view = View.inflate(context, R.layout.item1, null);
        view.setOnClickListener(this);
        Holder holder = new Holder(view);

        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull Holder holder, int i) {
        holder.text.setText(list.get(i).getName());
        holder.itemView.setTag(i);
        //点击颜色改变
        if (i == sss){
            holder.text.setTextColor(Color.RED);
        }else {
            holder.text.setTextColor(Color.BLACK);
        }
    }

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

    @Override
    public void onClick(View v) {
        if (itemClick !=null){
            itemClick.setClick(v, (int) v.getTag());
        }
    }

    public class Holder extends RecyclerView.ViewHolder {

        private final TextView text;

        public Holder(@NonNull View itemView) {
            super(itemView);
            text = itemView.findViewById(R.id.text_item1);
        }
    }

    public interface ItemClick{
        void setClick(View view, int position);
    }

    private ItemClick itemClick;

    public void setItemClick(ItemClick itemClick) {
        this.itemClick = itemClick;
    }

    //点击颜色改变
    public void colorChange(int position){
        sss = position;
        notifyDataSetChanged();
    }

}