Mapping a layout to drawable directories in android studio

Issue

I've created 'drawable directories' by density and also 'layout directories' by screen size in res directory. The drawable directories have images in it.

I need to know how a 'layout' find its corresponding drawable directory from the 'drawable directories'.

Eg. 'layout-large' maps to which one of these - drawable-mdpi,hdpi,xhdpi,xxhdpi,xxxhdpi ?

Solution

When you request a resource for which you provide alternatives, Android selects which alternative resource to use at runtime, depending on the current device configuration.

See the flow chart:

https://developer.android.com/images/resources/res-selection-flowchart.png

Please refer to the official documentation here 'How Android finds the best-matching resource.'

Answered By - Bruno Bieri