ios - Share data between two UIWindows -

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my objective have airplay option ios app shows same content ipad (like mirror) except modified 16x9 aspect ratio of tv.

i have initial setup complete, point have second window , opportunity set root view controller.

my current strategy create 2 separate view controllers, 1 ipad, 1 tv, create channel them communicate through.

is efficient way solve problem? there better way, perhaps involves me using same view controller different uiviews?


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