In mobile, particularly with Android, we have a wide range of possible screen
resolutions, from QVGA (320x240) to beyond 1080p (1920x1080), and many values in
between. Moreover, any device manufacturer is welcome to create a device with
whatever resolution they so desire – there are no rules limiting manufacturers to
certain resolutions. Hence, as developers, having the Android equivalent of fluid
Web designs is critical, and the way you will accomplish that is by sensible use of
containers, avoiding absolute positioning.