uu-android/scancardlibrary/src/main/res/drawable/bd_ocr_cancel_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"
    android:constantSize="true"
    >
    <!-- 按压时 -->
    <item android:drawable="@drawable/bd_ocr_cancel_press" android:state_pressed="true"/>
    <!-- 被选中时 -->
    <item android:drawable="@drawable/bd_ocr_cancel_press" android:state_selected="true"/>
    <!-- 被激活时 -->
    <item android:drawable="@drawable/bd_ocr_cancel_press" android:state_activated="true"/>
    <!-- 默认时 -->
    <item android:drawable="@drawable/bd_ocr_cancel"/>
</selector>