Question: A smart phone has very complex interfaces / libraries. The development team wants to create an abstraction layer to simplify the user interface without changing

A smart phone has very complex interfaces / libraries. The development team wants to create an abstraction layer to simplify the user interface without changing the underlying functions.
I NEED THE DIAGRAMS, not code!
Please make a simple class diagram AND a sequence diagram to match to for the smartphone abstraction layer as shown with the provided diagram images.
Image is what is needed/reference for how it should be setup, not just one class, but the relationships too please!
I upvote!
 A smart phone has very complex interfaces / libraries. The development

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