Ideal splash screen image sizes (Android)

Question

I know that this question has already been asked and answer here, but time has passed and we have new devices with "crazy" resolutions and aspect ratios...

Based on that question, image sizes should be:

PORTRAIT MODE

MDPI is 320x480 dp = 320x480px (1x)

LDPI is 0.75 x MDPI = 240x360px

HDPI is 1.5 x MDPI = 480x720px

XHDPI is 2 x MDPI = 640x960px

XXHDPI is 3 x MDPI = 960x1440px

XXXHDPI is 4 x MDPI = 1280x1920px

LANDSCAPE MODE

MDPI is 480x320 dp = 480x320px (1x)

LDPI is 0.75 x MDPI = 360x240px

HDPI is 1.5 x MDPI = 720x480px

XHDPI is 2 x MDPI = 960x640px

XXHDPI is 3 x MDPI = 1440x960px

XXXHDPI is 4 x MDPI = 1920x1280px

1) Now that we have devices like Galaxy S7, Pixel XL (1440x2650) or Galaxy S8 (1440x2960) what should be ideal splash image sizes?

2) How should I include these resource for above mentioned devices? I need to maintain app which supports devices back to api 15...

thx

Answer 1

As I received no answer from community I did it this way:

1) I included resources as:

S7 - "drawable-h640dp-xxxhdpi"

S8 - "drawable-h740dp-xxxhdpi"

2) It is compatible with older devices out of the box but it increases size of apk a lot which can be problem on old devices. Therefore; a a good solution is to use multiple apk for screen sizes / densities.

I hope it will help someone