res\drawable\color_selector.xml文件如下:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/red" android:state_pressed="true"></item>//按下 <item android:drawable="@drawable/green"></item>//松开</selector>
res\values\color.xml文件如下：
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="red">#f00</color> <color name="green">#0f0</color> <color name="blue">#00f</color> <drawable name="red">#f00</drawable> <drawable name="green">#00f</drawable> </resources>
Button布局中引用方法android:background="@drawable/color_selector"：
<Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/color_selector" android:text="按下变颜色" />
