Introduction to Android Development (10) Basic Controls 10.4 Autocompletetextview

Autocompletetextview and EditText are very similar, in fact, Autocompletetextview is the EditText subclass. With Autocompletetextview, a message pops up automatically when the user is typing. The following example shows how to use Autocompletetextview to automatically help users complete input.

1. Create a project: BASICVIEWS3.

2. Code in the Main.xml.

<?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:o" rientation= "vertical" >     
         
<textview 
    android:layout_width= "Fill_parent" 
    Wrap_content " 
    android:text=" Name of President "/>     
         
<autocompletetextview android:id=" @+id/ Txtcountries " 
    android:layout_width=" fill_parent " 
    android:layout_height=" wrap_content "/>     
         
< /linearlayout>

3, the code in the Basicviews3activity.java.

public class Basicviews3activity extends activity {string[] Presidents = {"Dwight D. Eisenh     
            Ower "," John F. Kennedy "," Lyndon B Johnson "," Richard Nixon ",  "Gerald Ford", "Jimmy Carter", "Ronald Reagan", "George H. W.."     
         
    Bush, "Bill Clinton", "George W. Bush", "Barack Obama"}; /** called the activity is a.     
        * * @Override public void onCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);     
                 
        Setcontentview (R.layout.main); arrayadapter<string> adapter = new Arrayadapter<string> (this, Android.     
         
        R.layout.simple_dropdown_item_1line, Presidents); Autocompletetextview TextView = (autocompletetextview) FindvieWbyid (r.id.txtcountries);     
        Textview.setthreshold (3);     
    Textview.setadapter (adapter); }     
}

4, F11 debugging.