Android Spinner

package com.karyu.androidstudy;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemSelectedListener;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

import android.widget.TextView;

public class AndroidStudyActivity extends Activity {

TextView selection;

String[] items = { "lorem", "ipsum", "dolor", "sit" };

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        selection = (TextView)findViewById(R.id.selection);

        

        Spinner spin = (Spinner)findViewById(R.id.spinner);

        spin.setOnItemSelectedListener(new SpinnerListen());

        

        ArrayAdapter<String> aa = new ArrayAdapter<String>(this, 

         android.R.layout.simple_spinner_item, items);

        

        aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spin.setAdapter(aa);

    }

    

    private class SpinnerListen implements OnItemSelectedListener {

@Override

public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,

long arg3) {

// TODO Auto-generated method stub

selection.setText(items[arg2]);

}

@Override

public void onNothingSelected(AdapterView<?> arg0) {

// TODO Auto-generated method stub

selection.setText("");

}

    }

}

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"

    >

<TextView 

android:text="@+id/TextView01" 

android:id="@+id/selection" 

android:layout_width="fill_parent" 

android:layout_height="wrap_content">

</TextView>

<Spinner 

android:id="@+id/spinner" 

android:layout_width="fill_parent" 

android:layout_height="wrap_content"

android:drawSelectorOnTop="true">

</Spinner>

</LinearLayout>