安卓控件ListView应用实例

ListView是用于垂直显示的列表控件，如果显示内容过多则会出现垂直滚动条，而且支持点击事件，所以经常被使用。

截图：

代码：

 1 package com.example.shiyan1;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.view.Menu;
 6 import android.view.MenuItem;
 7 import android.widget.ArrayAdapter;
 8 import android.widget.ListView;
 9 import android.widget.SimpleAdapter;
10 import android.widget.Spinner;
11 
12 import java.util.*;
13
14 public class MainActivity extends Activity {
15         ListView s;
16         List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         super.onCreate(savedInstanceState);
20         setContentView(R.layout.view);
21         s=(ListView) findViewById(R.id.listview01);
22         Map<String,Object> map1=new HashMap<String,Object>(); //map中存放listview中每小块的内容
23         map1.put("name","周润发");
24         map1.put("phone","13845138006");
25         map1.put("emil","runfa@163.com");
26      //   map1.put("tu","@drawable/tutu");
27         list.add(map1);
28         Map<String,Object> map2=new HashMap<String,Object>();
29         map2.put("name","姚明");
30         map2.put("phone","13845138003");
31         map2.put("emil","yaoming@163.com");
32        // map2.put("tu","@drawable/tutu");
33         list.add(map2);
34         Map<String,Object> map3=new HashMap<String,Object>();
35         map3.put("name","成龙");
36         map3.put("phone","13845138007");
37         map3.put("emil","chenglong@163.com");
38       //  map3.put("tu","@drawable/tutu");
39         list.add(map3);
40         String from[]={"name","phone","emil"};   //map中键的集合
41         int to[]={R.id.name01,R.id.phone01,R.id.emil01，R.id.}; //要将这些键的内容分别放到布局的什么地方，对应
42         SimpleAdapter adapt=new SimpleAdapter(this, list, R.layout.bujian, from, to);中间为每小块内容的布局
43        s.setAdapter(adapt);
44        
45     }
46 
47    
48 }

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:orientation="vertical" >
 <TextView android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:text="联系人"/>   
<ListView android:id="@+id/listview01"
    android:layout_width="wrap_content"
       android:layout_height="wrap_content">
 
</ListView>
</LinearLayout>