Why don't words in data binding work?

Question

Android

I do this and the icon is not displayed, before that, instead of false, there was a normal condition, but it also did not work

android:background="@{false ? @drawable/battery_indicator_on : @drawable/battery_indicator_off}"

I thought something with resources, but

android:background="@{false ? @drawable/battery_indicator_on : @drawable/battery_indicator_off, [email protected]/battery_indicator_off}"

Quite itself displays an icon, what's the matter?