Selector

文章目录

基本状态为常态normal、点击pressed、焦点focused、选中selected

<?xml version="1.0" encoding="utf-8" ?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 默认时的背景图片-->
    <item android:drawable="@drawable/pic1" />
    <!-- 没有焦点时的背景图片-->
    <item android:state_window_focused="false" android:drawable="@drawable/pic1" />
    <!-- 非触摸模式下获得焦点并单击时的背景图片-->
    <item android:state_focused="true"  android:state_pressed="true"
       android:drawable="@drawable/pic2" />
    <!-- 触摸模式下单击时的背景图片-->
    <item android:state_focused="false" android:state_pressed="true"
       android:drawable="@drawable/pic3" />
    <!--选中时的图片背景-->
    <item android:state_selected="true" android:drawable="@drawable/pic4" />
    <!--获得焦点时的图片背景-->
    <item android:state_focused="true" android:drawable="@drawable/pic5" />
</selector>