得自己写style样式，<item name="android:background">@drawable/spinner_style</item>spinner_style中的内容为<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:state_pressed="true" android:drawable="@drawable/spinner_pressed"/><item android:state_pressed="false" android:drawable="@drawable/spinner_normal"/></selector>spinner_pressed和spinner_normal是自己做的png图片。
