点击和获得焦点时在xml中实现背景色的变化

<?xml version="1.0" encoding="UTF-8"?>   
<selector xmlns:android="http://schemas.android.com/apk/res/android">   
<item   
android:state_pressed="false"   
android:drawable="@drawable/org" />   
<item   
android:state_pressed="true"   
android:drawable="@drawable/orgpressed" />   
<item   
android:state_focused="true"   
android:drawable="@drawable/orgfocused" />   
</selector> 

记不住就写博客上了