Adding images for diferent screen pixel densities

¿How can I add drawables for different screen pixel densities on a ionic project? ¿How do I refer to them on the html/js code?

For android: mdpi, ldpi, hdpi, xhdpi …
For iOS: @2x, @3x

Thank you in advance.


Hi. Are you able to figure this out. I am looking out on the same context. Thanks for any help.

I did not find out a way to approach this, so I simply used one size for every assett. I think you might use vector graphics for icons.