Screen size

The Screen object contains the screen size of the currently selected device.

Note that these values change when you rotate a device between portrait and landscape modes.

# Results for an iPhone 8 in portrait orientation
print Screen.width
» 750
print Screen.height
» 1334

With the Canvas device selected Screen will contain the dimensions of the Preview Window (which is resizable).

You can also use midX and midY to get the horizontal or vertical center of the screen, just like with a layer.

print Screen.midX
» 375
print Screen.midY
» 667