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本文实例讲述了Android编程之控件ListView使用方法。分享给大家供大家参考。具体分析如下:
控件ListView是一个重要的控件,可以被用作用户列表等显示,下面进行它的操作测试。
下面代码实现了生成了一个ListView显示,并对每个条目的单击事件作出响应.
源代码:
package com.list; import java.util.ArrayList; import java.util.HashMap; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ListView; import android.widget.SimpleAdapter; public class ListTest extends Activity {/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ArrayList<HashMap<String, Object>> users = new ArrayList<HashMap<String, Object>>(); for (int i = 0; i < 20; i++) {HashMap<String, Object> user = new HashMap<String, Object>();user.put("img", R.drawable.icon);user.put("username", "姓名(" + i+")");user.put("age", (20 + i) + "");users.add(user); } SimpleAdapter saImageItems = new SimpleAdapter(this, users,// 数据来源 //R.layout.user,//每一个user xml 相当ListView的一个组件 R.layout.user_layout,//每一个user xml 相当ListView的一个组件 new String[] { "img", "username", "age" }, // 分别对应view 的id new int[] { R.id.img, R.id.name, R.id.age }); //获取适配器 ListView listView = (ListView) findViewById(R.id.users); listView.setAdapter(saImageItems); listView.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> parent,View view,int position,long id){ ListView listView = (ListView) parent; Log.v("Test", "id = " + id + "("+ listView.getItemAtPosition(position).toString() + ")");} }); /* listView.setOnItemSelectedListener(new OnItemSelectedListener() {@Overridepublic void onItemSelected(AdapterView<?> parent,View view,int position,long id){ ListView listView = (ListView) parent; Log.v("Test", "id = " + id + "("+ listView.getItemAtPosition(position).toString() + ")");}@Overridepublic void onNothingSelected(AdapterView<?> parent){ // TODO Auto-generated method stub} }); */}}
效果图:

希望本文所述对大家的Android程序设计有所帮助。