Material Card does not work in API 16.
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If I use Material Card,
it works well in devices with API 17+:
… but in devices with API 16 the background of the card is set to black.
I have found in StackOverflow similar problems concerning the CardView from
Support Library:
… and I have tried the proposed solutions, but they do not work with Material
Card.
CardView
from Android X seems to work well in API 16+, so I think that I have to fallback
to it. 