/>
背景代码：
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true" android:drawable="@drawable/et_bg_press" /> <!-- focused -->
<item android:state_pressed="true" android:drawable="@drawable/et_bg_press" /> <!-- pressed -->
<item android:state_selected="true" android:drawable="@drawable/et_bg_press" /> <!-- pressed -->
<item android:drawable="@drawable/tv_bg" /> <!-- default --> //没有pressed时button的背景
</selector>
颜色代码
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true" android:color="@color/white" /> <!-- focused -->
<item android:state_pressed="true" android:color="@color/white" /> <!-- pressed -->
<item android:state_selected="true" android:color="@color/white" /> <!-- pressed -->
<item android:color="@color/title" /> <!-- default --> //没有pressed时button的颜色
</selector>
android点击Button后，buttton的背景和颜色改变
原文：http://blog.csdn.net/j451069001/article/details/42747557