<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:aapt="http://schemas.android.com/aapt"> <item android:state_enabled="false" android:color="?attr/colorOnError"/> <item android:color="?attr/colorError"/> </selector>Download file