How to make drawable of android app for all density

Question

Hello I am Android Developer, working on android application. I require to make all drawables for all density for my android app. Is there any standard ratio I should keep for that and any tool for that. Any idea ?

Answer 1

This is android's guidelines for icons.

36x36 for low-density 48x48 for medium-density 72x72 for high-density 96x96 for extra high-density

here: http://developer.android.com/guide/practices/screens_support.html

Refer: https://stackoverflow.com/questions/17261344/drawable-sizes-for-different-screen-sizes-in-android

https://stackoverflow.com/questions/8255985/how-to-support-different-screen-size-in-android

Answer 2

If you have Photoshop, it would be good for generating different size drawables.

So giving a example if I like to generate a icon say 48x48dp (Now as per Google dp is density independent pixel, 1dp=1pixel on a 160 dpi screen).

1. So first create a new document in PS of size 48x48 pixels with ppi set to 160. Draw/Paste your image and save it.

   Now generally there are 5 types of screens low (120 dpi), medium (160 dpi), high (240 dpi), extra high (320 dpi) and 2*extra high (480 dpi).

2. We have already created Icon for 160dpi screen, now change the image PPI (keeping aspect ratio same) to 120/240/320/480 and you'll have drawables for all screens. Put them in respective folders. Cheers !

(You can use other softwares too for changing image size/resolution)

Answer 3

I've created a script that exports to multiple sizes. It references Androids docs here. I've already included the Android recommended values but you can create your own export icon set.

Answer 4

you can use this link for all sizes