Android编程入门--Button圆角样式

<?xml version="1.0" encoding="utf-8"?>
<selector   xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false">
<shape android:shape="rectangle">
<solid android:color="@color/foot_txt_gray" />
<corners android:radius="5dip" />
</shape>
</item>
<item android:state_pressed="false">
<shape android:shape="rectangle">
<!-- 填充的颜色 -->
<solid android:color="@color/colorPrimary2" />
<!-- 设置按钮的四个角为弧形 -->
<!-- android:radius 弧形的半径 -->
<corners android:radius="5dip" />
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="rectangle">
<solid android:color="@color/colorPrimaryDark2" />
<corners android:radius="5dip" />
</shape>
</item>
</selector >

android:state_enabled="false" 必须放在首项