RecycleViewlist-Adapter

最新推荐文章于 2025-04-21 16:28:09 发布

转载最新推荐文章于 2025-04-21 16:28:09 发布 · 286 阅读

本文介绍了一个基于Android平台的学生信息列表适配器的具体实现方式。该适配器使用RecyclerView来展示学生信息列表，并通过自定义ViewHolder来优化列表视图的绘制效率。文章详细展示了如何创建适配器类、设置数据源、填充ViewHolder以及更新UI。

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package Adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.example.show.R;

import java.util.ArrayList;
import java.util.List;

import bean.Student;

/**
 * Created by L on 2017/12/2.
 */

public class StudentListAdapter extends RecyclerView.Adapter<StudentListAdapter.StudentViewHolder>{
    private Context mContext;
    private List<Student> mList = new ArrayList<Student>();
    private Student student;


    public StudentListAdapter(Context context) {
        this.mContext = context;

    }

    public void setItems(List<Student> list) {
        this.mList = list;
        notifyDataSetChanged();
    }

    @Override
    public StudentListAdapter.StudentViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        StudentViewHolder viewHolder = new StudentViewHolder(LayoutInflater.from(mContext)
                .inflate(R.layout.item_student_list, parent, false));
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(StudentViewHolder holder, int position) {
        if(mList!=null && mList.size()>0){
            student = mList.get(position);
            holder.name_tv.setText(student.getName());
            Log.d("StudentListAdapter==", "onBindViewHolder: "+student.getName());
        }

    }


    @Override
    public int getItemCount() {
        return mList!=null ? mList.size() : 0;
    }

    class StudentViewHolder extends RecyclerView.ViewHolder {

        private TextView name_tv;

        public StudentViewHolder(View itemView) {
            super(itemView);
            name_tv = (TextView) itemView.findViewById(R.id.name_tv);
        }
    }
}