Android中的AutoCompleteTextView可以實現文本輸入框的自動補全功能,和網頁上的輸入框使用Ajax時有點像,使用這個功能時,需指定一個adapter來設置補全的

url:
http://greatverve.cnblogs.com/archive/2012/01/04/android-auto-complete.html

<?
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"
>
<!-- 定義一個自動完成文本框,指定輸入一個字符后進行提示 -->
<!-- android:dropDownHorizontalOffse 設置下拉列表的水平偏移 -->
< AutoCompleteTextView
android:id ="@+id/auto"
android:layout_width ="fill_parent"
android:layout_height ="wrap_content"
android:completionHint ="請選擇您最喜歡的歌曲"
android:dropDownHorizontalOffset ="20dp"
android:completionThreshold ="1" /> <!-- 指明當輸入多少個字的時候給出響應的提示 -->
</ LinearLayout >
< LinearLayout xmlns:android ="http://schemas.android.com/apk/res/android"
android:orientation ="vertical"
android:layout_width ="fill_parent"
android:layout_height ="fill_parent"
>
<!-- 定義一個自動完成文本框,指定輸入一個字符后進行提示 -->
<!-- android:dropDownHorizontalOffse 設置下拉列表的水平偏移 -->
< AutoCompleteTextView
android:id ="@+id/auto"
android:layout_width ="fill_parent"
android:layout_height ="wrap_content"
android:completionHint ="請選擇您最喜歡的歌曲"
android:dropDownHorizontalOffset ="20dp"
android:completionThreshold ="1" /> <!-- 指明當輸入多少個字的時候給出響應的提示 -->
</ LinearLayout >
public
class AutoCompleteTextViewTest
extends Activity
{
// 定義字符串數組,作為提示的文本
String[] books = new String[]{
"孫燕姿-hey jude",
"孫燕姿-the moment",
"孫燕姿-tonight I feel close to you",
"孫燕姿-leave me alone"
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 創建一個ArrayAdapter,封裝數組
ArrayAdapter<String> aa = new ArrayAdapter<String>(
this,
android.R.layout.simple_dropdown_item_1line,
books);
AutoCompleteTextView actv = (AutoCompleteTextView)
findViewById(R.id.auto);
// 設置Adapter
actv.setAdapter(aa);
}
}
{
// 定義字符串數組,作為提示的文本
String[] books = new String[]{
"孫燕姿-hey jude",
"孫燕姿-the moment",
"孫燕姿-tonight I feel close to you",
"孫燕姿-leave me alone"
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 創建一個ArrayAdapter,封裝數組
ArrayAdapter<String> aa = new ArrayAdapter<String>(
this,
android.R.layout.simple_dropdown_item_1line,
books);
AutoCompleteTextView actv = (AutoCompleteTextView)
findViewById(R.id.auto);
// 設置Adapter
actv.setAdapter(aa);
}
}