Android应用中使用ListView实现数据列表显示（传智播客视频笔记）

Android应用中使用ListView实现数据列表显示

UsingListViewActivity.java源码：

package com.sinaapp.ssun.listview;

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

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class UsingListViewActivity extends Activity {
	private List<Person> persons = new ArrayList<Person>();
	private ListView listView; 
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listView = (ListView) this.findViewById(R.id.listView);
        
        for(int i=0; i<10; i++){
        	Person p = new Person("SSUN-"+i,"12340-"+i,i*100);
        	persons.add(p);
        }
        
        show();       
    }

	private void show() {
		List<HashMap<String, Object>> data = new ArrayList<HashMap<String,Object>>();
		
		for(Person p : persons){
			HashMap<String, Object> hm = new HashMap<String, Object>(); 
			hm.put("name", p.getName());
			hm.put("phone", p.getPhone());
			hm.put("amount", p.getAmount());
			data.add(hm);
		}
		
		SimpleAdapter adapter = new SimpleAdapter(this,data,R.layout.item, 
					new String[]{"name","phone","amount"},
					new int[]{R.id.name,R.id.phone,R.id.amount});
		listView.setAdapter(adapter);
	}
}

class Person{
	private String name;
	private String phone;
	private Integer amount;
	
	public Person(String name,String phone,Integer amount){
		this.name = name;
		this.phone = phone;
		this.amount = amount;
	}
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getPhone() {
		return phone;
	}

	public void setPhone(String phone) {
		this.phone = phone;
	}

	public Integer getAmount() {
		return amount;
	}

	public void setAmount(Integer amount) {
		this.amount = amount;
	}
}

main.xml文件：

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

	<LinearLayout
	    android:layout_width="match_parent"
	    android:layout_height="wrap_content"
	    android:orientation="horizontal" >    
	    
	    <TextView
	        android:textSize="22sp"
	        android:layout_width="100dp"
	        android:layout_height="wrap_content"
	        android:text="@string/name" />
	
	    <TextView
	        android:textSize="22sp"
	        android:layout_width="100dp"
	        android:layout_height="wrap_content"
	        android:text="@string/phone" />
	
	    <TextView
	        android:textSize="22sp"
	        android:layout_width="100dp"
	        android:layout_height="wrap_content"
	        android:text="@string/amount" />
	</LinearLayout>

	<ListView
	    android:id="@+id/listView"
	    android:layout_width="match_parent"
	    android:layout_height="wrap_content" >
	</ListView>
	    
</LinearLayout>

item.xml文件：

<?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="horizontal" >

    <TextView
        android:id="@+id/name"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/phone"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/amount"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:textSize="22sp" />

</LinearLayout>

string.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">ListView应用</string>
    <string name="name">姓名</string>
    <string name="phone">电话</string>
    <string name="amount">金额</string>
    

</resources>