Android study note 20: Automatically complete text box

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In Android, AutoCompleteTextView can automatically complete text input boxes, which is similar to Ajax in Web pages. When using this function, you must specify an adapter to set the complete text.

 

 

<? 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"
>
<! -- Define an Automatic completion text box, specify a character to input and prompt -->
<! -- Android: dropDownHorizontalOffse: sets the horizontal offset of the drop-down list -->
<AutoCompleteTextView
Android: id = "@ + id/auto"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"
Android: completionHint = "Please select your favorite song"
Android: dropDownHorizontalOffset = "20dp"
Android: completionThreshold = "1"/> <! -- Specify the number of words to be input and a response prompt -->

</LinearLayout>
<? 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"
>
<! -- Define an Automatic completion text box, specify a character to input and prompt -->
<! -- Android: dropDownHorizontalOffse: sets the horizontal offset of the drop-down list -->
<AutoCompleteTextView
Android: id = "@ + id/auto"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"
Android: completionHint = "Please select your favorite song"
Android: dropDownHorizontalOffset = "20dp"
Android: completionThreshold = "1"/> <! -- Specify the number of words to be input and a response prompt -->
 
</LinearLayout>

Public class AutoCompleteTextViewTest extends Activity
{
// Define a string array as the prompt text
String [] books = new String [] {
"Sun Yanzi-hey jude ",
"Sun Yanzi-the moment ",
"Sun Yanzi-tonight I feel close to you ",
"Sun Yanzi-leave me alone"
};
@ Override
Public void onCreate (Bundle savedInstanceState)
{
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
// Create an ArrayAdapter and encapsulate the Array
ArrayAdapter <String> aa = new ArrayAdapter <String> (
This,
Android. R. layout. simple_dropdown_item_1line,
Books );
AutoCompleteTextView actv = (AutoCompleteTextView)
FindViewById (R. id. auto );
// Set the Adapter
Actv. setAdapter (aa );
}
}
Public class AutoCompleteTextViewTest extends Activity
{
// Define a string array as the prompt text
String [] books = new String [] {
"Sun Yanzi-hey jude ",
"Sun Yanzi-the moment ",
"Sun Yanzi-tonight I feel close to you ",
"Sun Yanzi-leave me alone"
};
@ Override
Public void onCreate (Bundle savedInstanceState)
{
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
// Create an ArrayAdapter and encapsulate the Array
ArrayAdapter <String> aa = new ArrayAdapter <String> (
This,
Android. R. layout. simple_dropdown_item_1line,
Books );
AutoCompleteTextView actv = (AutoCompleteTextView)
FindViewById (R. id. auto );
// Set the Adapter
Actv. setAdapter (aa );
}
}

From snoopy's column