android控件13 AutoCompleteTextView

1)/res/layout/main.xml

<?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"
    >
	<AutoCompleteTextView android:id="@+id/autocompletetextview"
		android:layout_width="fill_parent"
    	android:layout_height="wrap_content"
    	android:hint="this is a autocomplete"
    	android:completionThreshold="2"
	/>
</LinearLayout>

2）com.sxt.AutoCompleteTextViewActivity.java

package com.sxt;

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

public class AutoCompleteTextViewActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        AutoCompleteTextView autoCompleteTextView =(AutoCompleteTextView)this.findViewById(R.id.autocompletetextview);
        //定義數據
        String [] data = new String[] {"jiangsu","zhejiang","anhui","liaoning","guangdong","xizang","taiwan"};
        //定義適配器(context,系統自帶的顯示樣式,數據)
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,data);
        autoCompleteTextView.setAdapter(adapter);
    }
}

3)如圖