android实现自动提示功能

package com.lianweijie.demo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.MultiAutoCompleteTextView;

public class AutoDemoActivity extends Activity {
    public static final String[] autoString = new String[]{"a2","abf","abe","abcde","abc2","abcd3"
        ,"abcde2","abc2","abcd2","abcde2"
    };
    @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,autoString);
        AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.AutoCompleteTextView01);
        autoCompleteTextView.setAdapter(adapter);
        autoCompleteTextView.setThreshold(1);  
        MultiAutoCompleteTextView multiAutoCompleteTextView = (MultiAutoCompleteTextView) findViewById(R.id.MultiAutoCompleteTextView01);
        multiAutoCompleteTextView.setAdapter(adapter);
        multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
    }

}

<?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="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <AutoCompleteTextView
        android:id="@+id/AutoCompleteTextView01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    <MultiAutoCompleteTextView
        android:id="@+id/MultiAutoCompleteTextView01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >
    </MultiAutoCompleteTextView>

</LinearLayout>

效果：