Android Question How does designer calculate screen WxH dimensions?

[stanmiller]

I have a device with a 480x640 physical screen size. The designer reports the dimensions as 480x577.

I understand this is linked to dip and density and scaling but can't seem to figure out the calculation how to get from 640 to 577?

Can you walk me through an example?

Display Test reports physical screen size

Designer reports dimensions as 480x577

Thanks!

 

[Erel]

The designer reports the activity size (without the system bars).

 

[DonManfred]

Your device has 480x640
But you cant use the Notificationbar in the top and also the navigationbar in the bottom.

So i believe

640 - Notificationbarheight - NavigationbarHeight = 577

come to affect in your case

 

[stanmiller]

Ah, see... Thanks for the replies.

It's the navigation bar that is consuming the 63 pixels. Using a fullscreen activity with no title, I'm able to position a view on the 576th line using the designer.

This device is running JellyBean 4.2.2