Just additional information, to indicate the theme for your application, you need to define it on AndroidManifest.xml
ex.
<application android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@style/Theme">
you must reuse some default style properties so declare the default android theme as the parent theme of your
in /styles.xml values ββor anywhere your theme file
<?xml version="1.0" encoding="utf-8"?> <resources> <style name="Theme" parent="@android:style/Theme"> <item name="android:spinnerStyle">@android:style/Widget.Spinner</item> <item name="android:spinnerDropDownItemStyle">@style/Widget.DropDownItem.Spinner</item> <item name="android:spinnerItemStyle">@android:style/Widget.TextView.SpinnerItem</item> </style>
source share