Calculate the height and width (in centimetres or inches) of the mobile phone/ tablet screen

MIT App Inventor Help
16

Since the navigation bar always has 48dp, the calculation is very simple.

Pixel 2XL:

grafik
grafik859×160 12.1 KB

Get Device Metrics → DisplayMetrics │ Resolution - Density - Font scaling
Is it possible to hide buttons at the bottom of the screen?