android button背景随心搭配

时间：2011-01-22 来源：NickleZhang

button_ctrl.xml中选择器

<?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/button_highlight_ctrl" />
    <item android:drawable="@drawable/button_normal_ctrl" />
</selector>

button_highlight_ctrl.xml中两层图

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
         android:drawable="@drawable/button_highlight_back"
         android:top="2dip"
         android:right="2dip"
         android:bottom="2dip"
         android:left="2dip"/>
    <item
         android:drawable="@drawable/button_highlight_fore"
         android:top="2dip"
         android:right="2dip"
         android:bottom="2dip"
         android:left="2dip"/>
</layer-list>

button_highlight_back.xml中完成背景颜色的渐变

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners
        android:radius="4dip"/>
    <gradient
        android:type="linear"
        android:angle="270"
        android:startColor="@color/highlight_button_start_color"
        android:centerColor="@color/highlight_button_middle_color"
        android:endColor="@color/highlight_button_end_color"/>
</shape>

button_highlight_fore是一张前景图片，即按下时的顶部阴影：

至此，已完成高亮button的制作，接下来是普通button

button_normal_ctrl.xml中两层图

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:drawable="@drawable/button_normal_back"
        android:top="2dip"
        android:right="2dip"
        android:bottom="2dip"
        android:left="2dip"/>
    <item
        android:drawable="@drawable/button_normal_fore"
        android:top="2dip"
        android:right="2dip"
        android:bottom="1dip"
        android:left="2dip"/>
</layer-list>