I am building out a media player for Android Auto and struggling to make a simple Toast Message that appears on the Automotive Display Head Unit.
In my Custom Actions, I have an action that needs to display a toast message on the Car interface, but when I implement the toast it instead only shows on the handheld device/phone.
I have searched the internet high and low, and can not find anything about displaying toasts on the Car Head Unit, even though it is listed in the Android Auto Design guide:: https://designguidelines.withgoogle.com/android-auto/android-auto/app-ui.html#app-ui-drawer
could someone please point me to an example for giving visual feedback or toasts on the Android Auto Platform?