ListView优化-通用CommonAdapter编写备份

时间:2023-03-09 07:11:07
ListView优化-通用CommonAdapter编写备份

【ps:CommonAdapter基于ViewHolder工具类】

CommonAdapter.java

package cn.edu.bzu.util;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView; import java.util.List; import cn.edu.bzu.listview_demo.R; /**
* CommonAdapter makes Common extends BaseAdapter
* Created by monster on 2015/5/3.
*/
public abstract class CommonAdapter<T> extends BaseAdapter {
protected Context mContext;
protected List<T> mDatas;
protected LayoutInflater mInflater; public CommonAdapter(Context context,List<T>datas){
this.mContext=context;
this.mDatas=datas;
mInflater=LayoutInflater.from(context);
}
@Override
public int getCount() {
return mDatas.size();
} @Override
public T getItem(int position) {
return mDatas.get(position);
} @Override
public long getItemId(int position) {
return position;
} @Override
public View getView(int position, View convertView, ViewGroup parent){
ViewHolder holder=ViewHolder.get(mContext,convertView,parent, R.layout.listview_item,position);
convert(holder,getItem(position));
return holder.getConvertView();
}
public abstract void convert(ViewHolder holder,T t);
}

MyAdapterWithCommonViewHolder.java

package cn.edu.bzu.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView; import java.util.List; import cn.edu.bzu.entity.Bean;
import cn.edu.bzu.listview_demo.R;
import cn.edu.bzu.util.CommonAdapter;
import cn.edu.bzu.util.ViewHolder; /**
* Created by monster on 2015/4/19.
* extends CommonAdapter
*/
public class MyAdapterWithCommonViewHolder extends CommonAdapter<Bean> {
// private LayoutInflater mInflater; //LayoutInflater是用来找layout下xml布局文件,并且实例化
// private List<Bean> mlist;
// private Context mcontext;
public MyAdapterWithCommonViewHolder(Context context, List<Bean> mDatas) {
super(context,mDatas);
} @Override
public void convert(ViewHolder holder, Bean bean) {
((TextView)holder.getView(R.id.id_title)).setText(bean.getTitle());
((TextView)holder.getView(R.id.id_desc)).setText(bean.getDesc());
((TextView)holder.getView(R.id.id_time)).setText(bean.getDate());
((TextView)holder.getView(R.id.id_phone)).setText(bean.getPhone());
} // @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 holder=ViewHolder.get(mContext,convertView,parent,R.layout.listview_item,position);
// ((TextView)holder.getView(R.id.id_title)).setText(mDatas.get(position).getTitle());
// ((TextView)holder.getView(R.id.id_desc)).setText(mDatas.get(position).getDesc());
// ((TextView)holder.getView(R.id.id_time)).setText(mDatas.get(position).getDate());
// ((TextView)holder.getView(R.id.id_phone)).setText(mDatas.get(position).getPhone());
// return holder.getConvertView();
// } }

【源代码下载链接:https://github.com/monsterLin/CommonAdapter_Package