android自定义listview格式动态更新显示数据测试

package com.example.mylistview;

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

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {

	private int cnt = 0;
	private MyAdspter adapter;
	private Handler handler;
	private List<Map<String, Object>> list;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		ListView listView = (ListView) findViewById(R.id.list);
		list = new ArrayList<Map<String, Object>>();
		handler = new Handler();  
		adapter = new MyAdspter(this, list);
		listView.setAdapter(adapter);
		test();
	}

	private void test(){  
		new Timer().schedule(new TimerTask() {  
			public void run() {  
				cnt++;
				if(cnt <10){
					getData(cnt);
					Runnable updater = new Runnable() {  
						public void run() {  
							((BaseAdapter) adapter).notifyDataSetChanged();  
						}  
					};  
					handler.post(updater); 
				}
			};  
		}, 0, 3000);  
	}  

	public void getData(int i) {
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("image", R.drawable.ic_launcher);
		map.put("title", "这是标题" + i);
		map.put("info", "这是一个详细详细信息" + i);
		list.add(map);
	}
}

class MyAdspter extends BaseAdapter {

	private List<Map<String, Object>> data;
	private LayoutInflater layoutInflater;

	public MyAdspter(Context context, List<Map<String, Object>> data) {
		this.data = data;
		this.layoutInflater = LayoutInflater.from(context);
	}

	public final class ComponentView {
		public ImageView image;
		public TextView title;
		public Button view;
		public TextView info;
	}

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

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

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

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		ComponentView cv = null;
		if (convertView == null) {
			cv = new ComponentView();
			convertView = layoutInflater.inflate(R.layout.list, null);
			cv.image = (ImageView) convertView.findViewById(R.id.image);
			cv.title = (TextView) convertView.findViewById(R.id.title);
			cv.view = (Button) convertView.findViewById(R.id.view);
			cv.info = (TextView) convertView.findViewById(R.id.info);
			convertView.setTag(cv);
		} else {
			cv = (ComponentView) convertView.getTag();
		}
		cv.image.setBackgroundResource((Integer) data.get(position).get("image"));
		cv.title.setText((String) data.get(position).get("title"));
		cv.info.setText((String) data.get(position).get("info"));
		return convertView;
	}
}

布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.mylistview.MainActivity" >

    <ListView   
        android:id="@+id/list"  
        android:layout_width="fill_parent"  
        android:layout_height="fill_parent">
    </ListView>  
</RelativeLayout>

列表项布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="horizontal" >

        <ImageView
            android:id="@+id/image"
            android:layout_margin="5dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:layout_marginTop="5dp"
            android:orientation="vertical" >

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="fill_parent">

                <TextView
                    android:id="@+id/title"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="#666872" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" >

                <TextView
                    android:id="@+id/info"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="#666872"
                    android:textSize="10dp" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="right" >

            <Button
                android:id="@+id/view"
                android:layout_width="wrap_content"
                android:layout_height="fill_parent"
                android:layout_centerVertical="true"
                android:layout_marginTop="7dp" 
                android:layout_marginRight="8dp" 
                android:text="详细" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>

效果：