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：

package com.example.shiyan1;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Spinner;

import java.util.*;

public class MainActivity extends Activity {
        ListView s;
        List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.view);
        s=(ListView) findViewById(R.id.listview01);
        Map<String,Object> map1=new HashMap<String,Object>(); //map中存放listview中每小块的内容
        map1.put("name","周润发");
        map1.put("phone","13845138006");
        map1.put("emil","runfa@163.com");
     //   map1.put("tu","@drawable/tutu");
        list.add(map1);
        Map<String,Object> map2=new HashMap<String,Object>();
        map2.put("name","姚明");
        map2.put("phone","13845138003");
        map2.put("emil","yaoming@163.com");
       // map2.put("tu","@drawable/tutu");
        list.add(map2);
        Map<String,Object> map3=new HashMap<String,Object>();
        map3.put("name","成龙");
        map3.put("phone","13845138007");
        map3.put("emil","chenglong@163.com");
      //  map3.put("tu","@drawable/tutu");
        list.add(map3);
        String from[]={"name","phone","emil"};   //map中键的集合
        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
        SimpleAdapter adapt=new SimpleAdapter(this, list, R.layout.bujian, from, to);中间为每小块内容的布局
       s.setAdapter(adapt);
       
    }

   
}

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>