sel_pwd.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools">
    <item android:drawable="@drawable/bg_button" android:state_focused="true" />
    <item android:drawable="@drawable/bg_pwd" />
</selector>