Android中ListView的使用
user.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
?android:orientation="horizontal" android:layout_width="fill_parent"
?android:layout_height="fill_parent">
?<!-- 用户名文本 -->
?<TextView android:id="@+id/userNameId" android:layout_width="wrap_content"
??android:layout_height="wrap_content" android:textSize="10pt"
??android:gravity="left" />
?<!-- IP文本 -->
?<TextView android:id="@+id/ipId" android:layout_width="fill_parent"
??android:layout_height="wrap_content" android:textSize="10pt"
??android:gravity="right" />
</LinearLayout>
?
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
?android:orientation="vertical" android:layout_width="fill_parent"
?android:layout_height="fill_parent">
?<LinearLayout android:layout_width="fill_parent"
??android:layout_height="wrap_content" android:orientation="vertical"
??android:paddingLeft="10px" android:paddingRight="10px"
??android:paddingTop="10px" android:paddingBottom="10px">
??<ListView android:id="@id/android:list" android:layout_width="fill_parent"
???android:layout_height="wrap_content" android:scrollbars="vertical"
???android:drawSelectorOnTop="true" />
?</LinearLayout>
</LinearLayout>
?
ListViewActivity.java
package com.duoguo.android;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleAdapter;
/**
?* ListView的使用
?*
?* @author shyboy(897948924@qq.com)
?*
?*/
public class ListViewActivity extends ListActivity {
?@Override
?public void onCreate(Bundle savedInstanceState) {
??super.onCreate(savedInstanceState);
??setContentView(R.layout.main);
??ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();// 实例化ArrayList链表，用来存放HashMap对象
??// 实例化HashMap对象，用来存放用户名和IP
??HashMap<String, String> map1 = new HashMap<String, String>();
??map1.put("user_name", "shyboy");
??map1.put("user_ip", "192.168.0.1");
??HashMap<String, String> map2 = new HashMap<String, String>();
??map2.put("user_name", "playboy");
??map2.put("user_ip", "192.168.0.2");
??HashMap<String, String> map3 = new HashMap<String, String>();
??map3.put("user_name", "simplyboy");
??map3.put("user_ip", "192.168.0.3");
??// 添加HashMap集合到ArrayList链表中
??list.add(map1);
??list.add(map2);
??list.add(map3);
??SimpleAdapter listSimpleAdapter = new SimpleAdapter(this, list,
????R.layout.user, new String[] { "user_name", "user_ip" },
????new int[] { R.id.userNameId, R.id.ipId });// 实例化适配器
??this.setListAdapter(listSimpleAdapter);
?}
?// 当点击ListView内容时触发该事件
?@Override
?protected void onListItemClick(ListView l, View v, int position, long id) {
??super.onListItemClick(l, v, position, id);
??System.out.println("id is:" + id);
??System.out.println("position is:" + position);
?}
}
?
希望对大家有所帮助，呵呵……
