Spinner in Android

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"
    tools:context=".MainActivity"
    android:background="#ccffcc" >

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="match_parent"
        android:layout_height="50dp" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Display Selected item" />

</LinearLayout>

MainActivity.java
package com.blogspot.kantapp.spinnerinandroid;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends Activity {
    String[] names = { "name1", "name2", "name3", "name4", "name5", "Second Activity",
            "name7", "name8", "name9", "name10" };

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

        final Spinner spinner = (Spinner)findViewById(R.id.spinner1);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(),R.layout.text, names);
        spinner.setAdapter(adapter);

        Button b = (Button)findViewById(R.id.button1);

        b.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {

                int id = spinner.getSelectedItemPosition();

                Toast.makeText(getApplicationContext(), names[id], 3000).show();
            }
        });
    }


}

text.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:textSize="20dp" >

</TextView>