Android4.0.4编程日记（2）--ListView

package com.example.test;

import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;

/**
* http://www.cnblogs.com/pswzone/archive/2012/03/10/2389275.html * http://www.iteye.com/topic/540423 http://www.beijibear.com/?aid=341
* http://www.beijibear.com/?aid=341 * @author Administrator
*
*/
public class MainActivity1 extends Activity {
private ListView mylistview;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mylistview = (ListView) findViewById(R.id.listview);
ArrayList<HashMap<String, String>> myArrayList = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < 5; i++) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("itemTitle", "This Is Title " + i);
map.put("itemContent", "This Is Content " + i);
myArrayList.add(map);
}
SimpleAdapter mySimpleAdapter=new SimpleAdapter(this,myArrayList,//数据源
R.layout.list_items,//ListView内部数据展示形式的布局文件listitem.xml
new String[]{"itemTitle","itemContent"},//HashMap中的两个key值 itemTitle和itemContent
new int[]{R.id.itemTitle,R.id.itemContent});/*布局文件listitem.xml中组件的id
布局文件的各组件分别映射到HashMap的各元素上，完成适配*/
mylistview.setAdapter(mySimpleAdapter);

mylistview.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
setTitle("点击第" + arg2 + "个项目");
}

});
}

}

layout中list_items.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="@+id/RelativeLayout01"
android:layout_width="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:paddingBottom="4dip"
android:paddingLeft="12dip"
android:paddingRight="12dip">

<TextView
android:text="itemTitle"
android:layout_height="wrap_content"
android:textSize="20dip"
android:layout_width="fill_parent"
android:id="@+id/itemTitle"
/>
<TextView
android:text="itemContent"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_below="@+id/itemTitle"
android:id="@+id/itemContent"
/>
</RelativeLayout>

layout中activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:orientation="vertical" >
</LinearLayout>

<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</ListView>

</RelativeLayout>