安卓适配器代码

Posted 2020-10-16 layfork

package com.example.administrator.ls.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.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.administrator.ls.ItemBean;
import com.example.administrator.ls.R;

import java.util.List;



public class MyAdapter extends BaseAdapter {
    private List<ItemBean> mList;
    private LayoutInflater mInflater;

    public MyAdapter(Context context,List<ItemBean> list){
        mList=list;
        mInflater=LayoutInflater.from(context);
    }

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

    @Override
    public Object getItem(int position) {
        return mList.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;
        if(convertView==null)
        {
            viewHolder=new ViewHolder();
            convertView=mInflater.inflate(R.layout.activity_item,null);
            viewHolder.imageView=(ImageView)convertView.findViewById(R.id.iv_image);
            viewHolder.title=(TextView)convertView.findViewById(R.id.tv_title);
            viewHolder.content=(TextView)convertView.findViewById(R.id.tv_content);
            convertView.setTag(viewHolder);
        }
        else{
            viewHolder = (ViewHolder)convertView.getTag();
        }
        ItemBean bean = mList.get(position);

        ItemBean itemBean = mList.get(position);

        viewHolder.imageView.setImageResource(itemBean.itemImageResId);
        viewHolder.title.setText(itemBean.itemTitle);
        viewHolder.content.setText(itemBean.itemContent);

        return convertView;
    }
}
class ViewHolder{
    public ImageView imageView;
    public TextView title;
    public TextView content;
}