该工程的功能是实现在一个activity中显示一个列表
以下代码是MainActivity.java中的代码
package com.example.listview; import java.util.ArrayList;
import java.util.HashMap; import android.app.ListActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.SimpleAdapter; public class MainActivity extends ListActivity { @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); ArrayList<HashMap<String, String>> list =
new ArrayList<HashMap<String, String>>();
HashMap<String, String> map1 = new HashMap<String,String>();
HashMap<String, String> map2 = new HashMap<String,String>();
HashMap<String, String> map3 = new HashMap<String,String>(); map1.put("user_name","zhangsan");
map1.put("user_ip","192.168.0.1");
map2.put("user_name","lisi");
map2.put("user_ip","192.168.0.2");
map3.put("user_name","wangwu");
map3.put("user_ip","192.168.0.3"); list.add(map1);
list.add(map2);
list.add(map3); SimpleAdapter listAdapter = new SimpleAdapter(this, list,
R.layout.activity_user, new String[] {"user_name", "user_ip"},
new int[] {R.id.user_name, R.id.user_ip});
setListAdapter(listAdapter);
}
}
以下的代码是activity_main.xml中的代码
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context="${relativePackage}.${activityClass}" > <LinearLayout
android:id="@+id/listLinearLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<ListView
android:id="@id/android:list"
android:scrollbars="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:drawSelectorOnTop="false"
/>
</LinearLayout> </LinearLayout>
以下代码是activity_user.xml中的代码
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:paddingTop="1dip"
android:paddingBottom="1dip"
tools:context="${relativePackage}.${activityClass}" > <TextView
android:id="@+id/user_name"
android:layout_width="180dip"
android:layout_height="30dip"
android:textSize="10pt"
android:singleLine="true"
/> <TextView
android:id="@+id/user_ip"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="right"
android:textSize="10pt"
/> </LinearLayout>