Window.onDisplayRotate

The orientation of the screen. It can be one of the following values: oriUnknown (acquisition failure / unknown), oriPortrait (portrait), oriLandscape (landscape)

The angle. The angle is 0, 90, 180, 270, or -1, and if it cannot be obtained, it will be -1.
The angle is the rotation angle from the device default, so it will be 0 in portrait orientation for portrait devices.
On a normal device, it seems that there are many 0s in landscape orientation.
The portrait orientation is 0 for recent 8-inch tablets, etc., and the portrait orientation is the standard orientation.
Android always returns -1.
If necessary, get it separately with Windows.displayRotate.

bits per pixel. On Android, the dpi value is returned.

The width of the screen.
Android always returns 0.
Obtain it separately if necessary.

The height of the screen.
Android always returns 0.
Obtain it separately if necessary.