app_payway_choose_btn.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
   <item android:state_pressed="false" android:drawable="@drawable/app_payway_btn_normal"/>
   <item android:state_pressed="true" android:drawable="@drawable/app_payway_btn_pressed"/>
</selector>