Creating Android assets (LPDI, MDPI, HDPI, XHDPI) for the application?

Question

I need to create projects for the Andriod application.

I see that everyone is talking about it "ldpi, mdpi, hdpi and xhdpi .... etc.". "The biggest doubt is THAT RESOLUTIONS, I have to create projects in Photoshop?" Because many screen sizes are now available. WHAT DEFAULT DIMENSIONS DO I NEED TO DESIGN WITH EVERY "ldpi, mdpi, hdpi and xhdpi?" As for Xhdpi - What screen resolution should I do?

a. 720x1280 - 320 dpi
b. 2048x1536 - 320 dpi
c. 2560x1536 - 320 dpi
d. 2560x1600 - 320 dpi

Again the same permissions for ldpi, mdpi and hdpi? What screen resolutions for the corresponding DPI What screen resolutions for

a. 120 dpi ?
b. 160 dpi ?
c. 240 dpi ?

PLEASE CLOSE ME. THANKS TONE WITHIN FRAMES

Answer 1

calculator.

ldpi is 120 dpi
mdpi is 160 dpi
hdpi is 240 dpi
xhdpi is 320 dpi
xxhdpi is 480 dpi 
xxxhdpi is 640 dpi

( , )

, , Maneti . , ( , sdk android), , , Photoshop. ( , ).

( / Android), , , , (, ).

size drawables ( , ).

Answer 2

120, 160, 240 dpi, , 240 * 320, 320 * 480 480 * 800 ( 854).
xhdpi (320) 1280 * 720 ( 800).

,

, .

, , .

dp sp , dpi , .

. .

Answer 3

XXHDPI, . , 1080px x 1920px 72ppi Photoshop ( ). Photoshop script, Cut & Slice me (XHDPI, HDPI, MDPI LDPI).

PSD , .

, .

Answer 4

, ppi dpi.
-, , . Ppi , . ppi ( )/dpi ( ) .
ppi, ?
ppi . , ppi .
, xxhdpi ppi 480.
, 320, xhdpi
240 > hdpi
160 > mdpi
120 > ldpi
.