Range of sizes
There are a range of sizes used to determine the view that is used in Android apps. Note that the runtime does not require an exact match to select a view. The runtime chooses the closest match. The following table shows the ranges for each view, specified in landscape coordinates:
It is possible to visualize the layout of the forms in the device in real time by looking at the Berlin version design time. Fantastic, isn't it? To do this, download the Fire UI Live Preview application from your platform store (Google Play: http://docwiki.embarcadero.com/RADStudio/Rio/en/FireUI_App_Preview, or Apple Store: https://itunes.apple.com/us/app/fireui-app-preview-10.1-berlin/id1090861997) or install directly via the C:\Program Files (x86)\Embarcadero\Studio\20.0\LivePreview\ path.
FireUI Live Preview is a server/client multi-device tool that allows you to broadcast the active form of your application, in real time, to several devices simultaneously.