Easiest way to know (programmatically) which resources folder is used based on screen density/size

Question

Is there a way to know exactly which layout (and other resources) are chosen by Android during runtime based on screen density and size when supporting mult

Answer 1

Imagine you have a structure like this:

res/
    drawable-mdpi/image.png
    drawable-hdpi/image.png
    drawable-xhdpi/image.png
    layout/main.xml
    layout-land/main.xml
    layout-xlarge/main.xml
    layout-sw600dp/main.xml

and you want to know, which layout is used.

One way would be to put a value in resources:

res/
    values-mdpi/strange_info.xml with:
        drawable-mdpi
    values-hdpi/strange_info.xml with:
        drawable-hdpi
    values-xhdpi/strange_info.xml with:
        drawable-xhdpi

    values/strange_info.xml with:
        layout
    values-land/strange_info.xml with:
        layout-land
    values-xlarge/strange_info.xml with:
        layout-xlarge
    values-sw600dp/strange_info.xml with:
        layout-sw600dp

In code you just do

String mainFolderName = context.getResources().getString(R.string.main_is_from_folder);

I have some doubts regarding -Xdpi qualifier, but it should work (not tested). Note that with the above structure you will get "drawable-hdpi" on ldpi devices for image.png.