Setting Styles

activity_main.xml
--------------------
 <TextView
        
        style="@style/CodeFont"
        android:text="@string/hello_world" />

    <Button
        android:id="@+id/button1"             
        android:layout_marginTop="40dp"
        android:text="@string/Pop_Up_Menu" 
        style="@style/CodeFont"/>

string.xml
---------------
<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">MyMenu</string>
    <string name="action_settings">Settings</string>
    <string name="action_music">Music</string>
    <string name="action_games">Games</string>
    <string name="hello_world">Hello world!</string>
<string name="Pop_Up_Menu">PopUpMenu</string>
</resources>

style.xml

------------

<style name="CodeFont" parent="@android:style/TextAppearance.Medium">

        <item name="android:layout_width">fill_parent</item>

        <item name="android:layout_height">wrap_content</item>

        <item name="android:textColor">#00FF00</item>

        <item name="android:typeface">serif</item>

    </style>