1.为了方便，将讲解注释写到了代码中，这样应该便于观看，思路也比较连续

代码：

MainActivity.java

package com.king.listviewtest;

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

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {
	
	private static List<Fruit> fruitList = new ArrayList<Fruit>();
	static{
		Fruit apple = new Fruit("Apple",R.drawable.apple_btn);
		
		Fruit apple1 = new Fruit("Banana",R.drawable.orage_btn);
		
		Fruit apple2 = new Fruit("Pear",R.drawable.water_btn);
		
		Fruit apple3 = new Fruit("Lemon",R.drawable.water_btn);
		
		Fruit apple4 = new Fruit("peach",R.drawable.orage_btn);
		
		Fruit apple5 = new Fruit("plum",R.drawable.apple_btn);
		
		Fruit apple6 = new Fruit("nectarine",R.drawable.water_btn);
		
		Fruit apple7 = new Fruit("honeydew",R.drawable.orage_btn);
		fruitList.add(apple);
		fruitList.add(apple1);
		fruitList.add(apple2);
		fruitList.add(apple3);
		fruitList.add(apple4);
		fruitList.add(apple5);
		fruitList.add(apple6);
		fruitList.add(apple7);
		
		
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		/*String[] data = {"peach","Lemon","Pear","avocado","cantaloupe","Banana","Grape","raisins","plum","apricot","nectarine","honeydew","orange","tangerine"};
		//android.R.layout.simple_list_item_1：android内置的布局文件，里面只有一个TextView，可用于简单的显示一段文本
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1,data);
		ListView listView = (ListView) findViewById(R.id.list_view);
		listView.setAdapter(adapter);*/
		
		//依次传入上下文，ListView子项布局的id,以及要适配的数据
		FruitAdapter friuitAdapter = new FruitAdapter(MainActivity.this, R.layout.fruit_item, fruitList);
		ListView listView = (ListView) findViewById(R.id.list_view);
		//将构建好的适配器对象传递进去
		listView.setAdapter(friuitAdapter);
		//ListView的点击事件
		listView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				Fruit fruit = fruitList.get(position);
				Toast.makeText(MainActivity.this, fruit.getName(), Toast.LENGTH_SHORT).show();
				
			}
		});
	}
}

FruitAdapter.java

package com.king.listviewtest;

import java.util.List;

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

public class FruitAdapter extends ArrayAdapter<Fruit>{
	
	private int resourceId;

	public FruitAdapter(Context context,int textViewResourceId,
			List<Fruit> objects) {
		super(context,textViewResourceId, objects);
		resourceId = textViewResourceId;
		
	}
	
	@Override
	//这个方法在每个子项被滚动到屏幕内的时候会被调用
	public View getView(int position, View convertView, ViewGroup parent) {
		Fruit fruit = getItem(position);//获取当前fruit实例
		
		View view;
		ViewHolder viewHolder;
		//提升ListView的运行效率，convertView这个参数用于将之前加载好的布局进行缓存，以便之后可以重用
		if(convertView == null){
			viewHolder = new ViewHolder();
			//使用LayoutInflater来为这个子项加载我们传入的布局，并分别调用他们的setImageResource，setText来显示
			view = LayoutInflater.from(getContext()).inflate(resourceId, null);
			viewHolder.fruitImage = (ImageView) view.findViewById(R.id.fruit_image);
			viewHolder.fruitName = (TextView) view.findViewById(R.id.fruit_name);
			view.setTag(viewHolder); //将viewHolder存储到View中，当convertView不为空的时候则调用view的getTag()方法，把ViewHolder重新取出
		}else{
			view = convertView;
			viewHolder = (ViewHolder) view.getTag();
		}
		
		viewHolder.fruitImage.setImageResource(fruit.getImageId());
		viewHolder.fruitName.setText(fruit.getName());
		
		return view;
	}
	
	class ViewHolder{
		ImageView fruitImage;
		TextView fruitName;
	}

}

Fruit.java

package com.king.listviewtest;

public class Fruit {
	
	private String name;
	private int imageId;
	
	
	
	public Fruit(String name, int imageId) {
		this.name = name;
		this.imageId = imageId;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getImageId() {
		return imageId;
	}
	public void setImageId(int imageId) {
		this.imageId = imageId;
	}

}

activity_main.xml

<?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:orientation="vertical"
     >
     <!-- 先为ListView指定了一个id，然后将宽度和高度都设置为match_parent，这样ListView也就
     占据了整个布局的空间 -->
     
    <ListView 
        android:id="@+id/list_view"
        android:layout_width="match_parent"
    	 android:layout_height="match_parent"
        
        ></ListView>
    

</LinearLayout>

fruit_item.xml

<?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:orientation="vertical" >
    <ImageView
        android:id="@+id/fruit_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <TextView 
        android:id="@+id/fruit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginLeft="10dip"
        />
    

</LinearLayout>

源代码： http://download.csdn.net/detail/wangxuewei111/8579529

android-ListView的简单用法

代码：

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