Custom Spinner android

I want custom Spinner same picture below. I crate drawable xml: Here my code:

<item>
    <shape>
        <gradient
            android:angle="90"
            android:endColor="#ffffff"
            android:startColor="#ffffff"
            android:type="linear" />

        <stroke
            android:width="1dp"
            android:color="#E0E0E0" />

        <!-- <corners android:radius="5dp" /> -->
        <size android:height="32dp"/>

        <padding
            android:bottom="0dp"
            android:left="10dp"
            android:right="0dp"
            android:top="0dp" />
    </shape>
</item>
<item>
    <bitmap
        android:height="32dp"
        android:gravity="center|right"
        android:src="@drawable/ic_bg_arrow" />
</item>

But the result is not same. Can you help me, please?