https://www.youtube.com/watch?v=4xP4grX-DaU&list=PLtmQsn29mAv8UPdAvXgq5jOfKDPpmxxti
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Common code can be good
Common UI can cause problems
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On common project, right click, add, new
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Xamarin.Forms
Content Page
Name: Page_Desktop
Click Add
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in MainPage.xaml
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App.xaml.cs
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Click Android emulator
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