Request: support Android 11 (R - API 31)

[AndroidDeveloperLB]

Sadly on Android R, you can't set a custom View for a Toast (when targeting API 31) :

https://developer.android.com/reference/android/widget/Toast#setView(android.view.View)
https://developer.android.com/reference/android/widget/Toast#getView()

Please offer something that mimics the standard Toast's look&feel, so that at least we could have it shown within the app, as a normal View.
Maybe something similar to what we have when we long press the action items on the toolbar:

dfu6CwFaPM.zip

Custom Toasts are useful anyway usually only when the user is inside the app...