2018-05-12 spinner 修改圖示

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
android:paddingMode="stack"
android:paddingStart="12dp"
android:paddingEnd="12dp"
android:paddingLeft="0dp"
android:paddingRight="0dp">




<item
android:drawable="@mipmap/ico_right"
android:gravity="end|center_vertical"
android:width="24dp"
android:height="24dp"
android:end="0dp" /><span><span> </span></span>
</layer-list>