android下listview的分页更多加载（效果非常实用）

效果图如下：

代码如下：

package com.listview.yy;

import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

/**
 * ListView分页加载数据
 * @author zhangkai281
 *
 */
public class Main extends Activity {
	private ListView listView;
	private List<Map<String,Object>> data;
	private MyAdapter adapter;
	//分页加载的数据的数量
	private int pageSize=10;
	private final int pageType=1;
	//查看更多
	private TextView moreTextView;
	//正在加载进度条
	private LinearLayout loadProgressBar;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.list_page);

		listView=(ListView)findViewById(R.id.lv_id);

		//第一个参数：1起始数  第二个参数：显示的数目
		data=InitValue.initValue(1,10);

		//在ListView中添加"加载更多"
		addPageMore();
		//添加"加载更多"一定要在设置Adapter之前
		adapter=new MyAdapter(data,Main.this);
		listView.setAdapter(adapter);
	}

	
	/**
	 * 加载下一页的数据
	 * @param pageStart
	 * @param pageSize
	 */
	private void chageListView(int pageStart,int pageSize){
		List<Map<String,Object>> data=InitValue.initValue(pageStart,pageSize);
		for (Map<String, Object> map : data)
		{
			this.data.add(map);
		}
		data=null;
	}

	/**
	 * 在ListView中添加"加载更多"
	 */
	private void addPageMore(){
		View view=LayoutInflater.from(this).inflate(R.layout.list_page_load, null);
		moreTextView=(TextView)view.findViewById(R.id.more_id);
		loadProgressBar=(LinearLayout)view.findViewById(R.id.load_id);
		moreTextView.setOnClickListener(new Button.OnClickListener() {
			@Override
			public void onClick(View v) {
				//隐藏"加载更多"
				moreTextView.setVisibility(View.GONE);
				//显示进度条
				loadProgressBar.setVisibility(View.VISIBLE);

				new Thread(new Runnable() {
					@Override
					public void run() {
						//休眠3秒，用于模拟网络操作时间
						try {
							Thread.sleep(3000);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}

						//加载模拟数据：下一页数据， 在正常情况下，上面的休眠是不需要，直接使用下面这句代码加载相关数据
						chageListView(data.size(),pageSize);

						Message mes=handler.obtainMessage(pageType);
						handler.sendMessage(mes);
					}
				}).start();
			}
		});
		listView.addFooterView(view);
	}

	private Handler handler=new Handler(){
		@Override
		public void handleMessage(Message msg) {
			switch (msg.what) {
			case pageType:
				//改变适配器的数目
				adapter.count += pageSize;
				//通知适配器，发现改变操作
				adapter.notifyDataSetChanged();

				//再次显示"加载更多"
				moreTextView.setVisibility(View.VISIBLE);
				//再次隐藏“进度条”
				loadProgressBar.setVisibility(View.GONE);
				break;

			default:
				break;
			}

			super.handleMessage(msg);
		}
	};
}

package com.listview.yy;

import java.util.List;
import java.util.Map;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter{
    List<Map<String,Object>> data;
	Context context;
	int count;
	public MyAdapter(List<Map<String, Object>> data, Context context) {
		super();
		this.data = data;
		this.context = context;
		count=data.size();
	}

	
	@Override
	public int getCount() {
		return count;
	}

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

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

	@Override
	public View getView(int position, View convertView, ViewGroup parent)
	{
		View view=LayoutInflater.from(context).inflate(R.layout.list_page_item, null);
		TextView title=(TextView)view.findViewById(R.id.tv_id);
		TextView text=(TextView)view.findViewById(R.id.title_id);
		title.setText(data.get(position).get("title").toString());
		text.setText(data.get(position).get("text").toString());
		return view;
	}


}

package com.listview.yy;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class InitValue {    
	public static int page=1;        
	/**模拟数据分页加载，     
	 * 
	 * @param pageStart  起始数     
	 * @param pageSize   每页显示数目    
	 * @return     
	 */   
	public static List<Map<String,Object>> initValue(int pageStart,int pageSize)
	{        
		Map<String,Object> map;      
		List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();        
		for(int i=0;i<pageSize;i++)
		{            
			map=new HashMap<String,Object>();    
			map.put("text", "内容");     
			map.put("title", page+"--------------标题");   
			++page;           
			list.add(map);     
		}    
		return list;   
	}
}

源码下载地址：http://download.youkuaiyun.com/detail/abc13939746593/5095912