Android--自动搜索提示

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    
    <AutoCompleteTextView 
        android:id="@+id/autoText"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_marginTop="10dp"
        />

</LinearLayout>

public class PicActivity extends Activity {

    private String[] items={
            "ab",
            "db",
            "adg",
            "dbee",
            "adre",
            "ayrtr",
            "btee",
            "bdw",
            "bt45",
            "aire",
            "vfdr",
            "434"
    };
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_pic);
        
        AutoCompleteTextView autoText=(AutoCompleteTextView)findViewById(R.id.autoText);
        
        ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, items);
        
        autoText.setAdapter(adapter);
        autoText.setThreshold(1);
    }
}