Xamarin.Forms by Microsoft

<PackageReference Include="Xamarin.Forms" Version="4.5.0.187-pre2" />

 WindowSoftInputModeAdjust

Enumerates values that control how an on-screen input interface is visually accommodated.
Pan = 0

Indicates that the content of the control will pan, possibly off of the screen, to accommodate the input interface.

Resize = 1

Indicates that the content of the control will resize to accommodate the input interface.

Indicates that the behavior of the control for oversized content is not specified.