Simple Spinner in Android

1. Add Spinner in activity_main.xml:

<Spinner
    android:id="@+id/spinner"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

2. Add string-array labels in strings.xml:

<string-array name="labels_array">
    <item>Home1</item>
    <item>Home2</item>
    <item>Home3</item>
    <item>Home4</item>
</string-array>

3. Add this code to MainActivity.java file: