java - android multiple screen sizes -


i have 3 activity_main.xml files in folder normal, large , xlarge file each, when run app on android studio emulator on nexus 4, nexus 7 , nexus 10 have regular main file showing not large or xlarge. missing something?.

as requested here's screenshots of files:

full res folder in windows explorer

res folder in android studio

the correct folders limit between phone, 7" tablet , 10" tablet are:

layout/            (default) layout-sw600dp/    (7") layout-sw720dp/    (10") 

sw is: "smallest available width"

you can read more here: https://developer.android.com/guide/practices/screens_support.html

beginning android 3.2 (api level 13), above size groups deprecated , should instead use swdp configuration qualifier define smallest available width required layout resources


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