android - How can I calculate phone's width and height in density pixels -


for instance, have galaxy tab 2 http://www.gsmarena.com/samsung_galaxy_tab_2_10_1_p5100-4567.php has display size 800 x 1280 pixels

how can calculate , height in dp? want use relevant values in resource folder names

values-sw600dp

galaxy tab 2 has 10.1" display , 800 x 1280.

for sw (smallest width):

800 / (141/160) = 800 / 0.88125 = 907.8 dp -> fits example sw600dp.  141 - dpi of screen 160 - dpi of mdpi screen 800 - pixels in width

basicaly sw-600dp fits 7" tablets , sw-720dp fits 10" tablets.


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