Custom Spinner with rounded corners, stroked edge and a selector icon

Question

I want my Spinner to have a black gradient background with white text on the left and a selector icon on the right (a white downwards pointing triangle). As I see i

Answer 1

I've done something similar to method 1 in my app. Basically you need to combine your selector with a layer-list:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <layer-list>
            <item>
                <shape>
                    <gradient
                        android:startColor="#343434"
                        android:endColor="#171717"
                        android:angle="270" />
                    <stroke
                        android:width="1dp"
                        android:color="#ffffff" />
                    <corners
                        android:radius="4dp" />
                    <padding
                        android:left="3dp"
                        android:top="3dp"
                        android:right="3dp"
                        android:bottom="3dp" />
                </shape>
            </item>
            <item
                android:top="12dp"
                android:right="15dp">
                <bitmap android:src="@drawable/arrow_bitmap"
                        android:gravity="top|right" />
            </item>
        </layer-list>
    </item>
</selector>

In my xml I also added a third layer containing a <shape> that is invisible (i.e. its alpha is set to 0) but adds padding.