Why does this 9-patch image look bad on my Galaxy 3 tablet?

Question

Why does this 9-patch image look bad on my Galaxy 3 tablet after creating resolution folders and generating the various resolutions for this file? Am I creating the 9-patch incorrectly? The dropdown looks fine below, but on the screen it is super-tiny.

UPDATE: I included the wrong file at first. This has now been corrected. I am using a .9.png extension.

Code in main "styles.xml" file:

 <style name="AppTheme" parent="@android:Theme.Holo.Light.DarkActionBar">
        <item name="android:spinnerStyle">@style/spinnerStyle</item>
 </style>

<style name="spinnerStyle" parent="@android:style/Widget.Spinner">
    <item name="android:background">@drawable/icon_spinner</item>
    <item name="android:spinnerMode">dropdown</item>
    <item name="android:layout_gravity">center</item>
    <item name="android:layout_margin">2dp</item>
    <item name="android:padding">2dp</item>
</style>

Layout code:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="wrap_content"
    android:layout_width="match_parent">

    <TextView
        android:id="@+id/nameTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="0dp"
        android:paddingLeft="2dp"
        android:textSize="15dp" />

</LinearLayout>

Answer 1

I fixed the issue by lowering the input resolution size on the application that I was using to generate the different resolutions.