Use of arraylist

<?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:id="@+id/listLinearLayout"        android:layout_width="fill_parent" android:layout_height="wrap_content"        android:orientation="vertical">        <ListView android:id="@id/android:list" android:layout_width="fill_parent"            android:layout_height="wrap_content" android:drawSelectorOnTop="true"            android:scrollbars="vertical" />    </LinearLayout></LinearLayout>

Note: This Code only has one listview and can be used with one linearlayout.

android:scrollbars="vertical" /> 内容超出时，滚动条显示在竖直方向。


下面这个XMl文件具体设置Listview的格式,对应控制代码里面的R.layout.user

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    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">    <TextView android:id="@+id/user_name" android:layout_width="180dip"        android:layout_height="30dip" android:textSize="5pt"        android:singleLine="true" />    <TextView android:id="@+id/user_ip" android:layout_width="fill_parent"        android:layout_height="fill_parent" android:gravity="right"        android:textSize="5pt" /></LinearLayout>

Code for loading values into listview

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", "zhangsan");        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);        MyAdapter listAdapter = new MyAdapter(this, list,                R.layout.user, new String[] { "user_name", "user_ip" },                new int[] { R.id.user_ip,R.id.user_name});        setListAdapter(listAdapter);

Note:

Arraylist Each item in the arraylist is a hashmap.
Key in hashmap <string, string> map is a string, and value is a string

 

Use of arraylist