android AutocompletionTextView自动补全文本框

MainActivity.java

package com.ct7_AutocompletionTextView;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {

	private AutoCompleteTextView textView;
	private ArrayAdapter<String> adapter;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		textView = (AutoCompleteTextView) findViewById(R.id.edit);
		adapter = new ArrayAdapter<String>(this,
				android.R.layout.simple_spinner_item, MyData.getData());
		textView.setAdapter(adapter);
	}

}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="填入下列文本框自动补全" />

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="请选择国籍:" />

        <AutoCompleteTextView
            android:id="@+id/edit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="选中"/>

</LinearLayout>

我的数据
MyData.java

package com.ct7_AutocompletionTextView;

public class MyData {
	public static String[] getData() {
		String[] countries = new String[] { "Afghanistan", "Albania",
				"Algeria", "AmericanSamoa", "Andorra", "Angola",
				"AntiguaandBarbuda", "Argentina", "Armenia", "Australia",
				"Austria", "Azerbaijan", "Bahamas", "Bahrain", "Bangladesh",
				"Barbados", "Belarus", "Belau", "Belgium", "Belize", "Benin",
				"Bhutan", "Bolivia", "BosniaandHerzegovina", "Botswana",
				"Brazil", "Brunei", "Bulgaria", "Burkina-Faso", "Burundi",
				"Cambodia", "Cameroon", "Canada", "CapeVerde",
				"CentralAfricanRepublic", "Chad", "China", "Chile", "Colombia",
				"Comoros", "Congo(Republicof)", "Congo(DemocraticRepublicof)",
				"CostaRica", "Coted'Ivoire", "Croatia", "Cuba", "Cyprus",
				"CzechRepublic", "Denmark", "Djibouti", "Dominica",
				"DominicanRepublic", "EastTimor", "Ecuador", "Egypt",
				"ElSalvador", "England", "EquatorialGuinea", "Eritrea",
				"Estonia", "Ethiopia", "Fiji", "Finland", "France", "Gabon",
				"Gambia", "Georgia", "Germany", "Ghana", "Greece", "Greenland",
				"Grenada", "Guatemala", "Guinea", "Guinea-Bissau", "Guyana",
				"Haiti", "Honduras", "Hungary", "Iceland", "India",
				"Indonesia", "Iran", "Iraq", "Israel", "Italy", "Jamaica",
				"Japan", "Jordan", "Kazakhstan", "Kenya", "Kirghizia",
				"Kiribati", "Kuwait", "Laos", "Latvia", "Lebanon", "Lesotho",
				"Liberia", "Libya", "Liechtenstein", "Lithuania", "Luxembourg",
				"Macedonia", "Madagascar", "Malawi", "Malaysia", "Mali",
				"Malta", "MarshallIslands", "Mauritania", "Mauritius",
				"Mexico", "Micronesia", "Moldova", "Monaco", "Mongolia",
				"Morocco", "Mozambique", "Myanmar", "Namibia", "Nauru",
				"Nepal", "Netherlands", "NewZealand", "Nicaragua", "Niger",
				"Nigeria", "NorthernIreland", "NorthKorea", "Norway", "Oman",
				"Pakistan", "Panama", "PapuaNewGuinea", "Paraguay",
				"People'sRepublicofChina", "Peru", "Philippines", "Poland",
				"Portugal", "PuertoRico", "Qatar", "RepublicofIreland",
				"RepublicofMaldives", "Romania", "Russia", "Rwanda", "Samoa",
				"SanMarino", "SaudiArabia", "Scotland", "Senegal",
				"Seychelles", "SierraLeone", "Singapore", "Slovakia",
				"Slovenia", "SolomonIslands", "Somalia", "SouthAfrica",
				"SouthKorea", "Spain", "SriLanka", "Sudan", "Surinam",
				"Swaziland", "Sweden", "Switzerland", "Syria", "Taiwan",
				"Tajikistan", "Tanzania", "Thailand", "Togo", "Tonga",
				"TrinidadandTobago", "Tunisia", "Turkey", "Turkmenistan",
				"Tuvalu", "Uganda", "Ukraine", "UnitedArabEmirates",
				"UnitedKingdom", "UnitedStatesofAmerica", "Uruguay",
				"Uzbekistan", "Vanuatu", "VaticanCity", "Venezuela", "Vietnam",
				"Wales", "Yemen", "Yugoslavia(SerbiaandMontenegro)", "Zambia",
				"Zimbabwe" };
		return countries;
	}

}