How can I create a separate resource folder for foldable phones?

Usually layout files are stored in the res/layout folder, layout files for landscape orientation are located in the res/land-layout folder. How can I add a separate layout file for foldable devices (like Pixel 9 Pro Fold) to the project? Currently, the foldable mode also uses files from res/land-layout. But I want to make a third design option for such devices.

-> You can use swNNNdp Qualifier (e.g. res/layout-sw600dp)
Foldables (when unfolded) typically have larger screen widths, so you can use:

res/layout-sw600dp/         → for unfolded/foldable screens
res/layout/                 → for default (phones)
res/layout-land/            → for landscape

Example:

res/
├── layout/                # Default phone layout (portrait)
├── layout-land/           # Landscape layouts
├── layout-sw600dp/        # For unfolded/foldable screen widths >= 600dp

-> Use Jetpack Window Manager to Detect Fold State
For precise behavior, use Jetpack WindowManager library to detect if device is foldable, and what mode it's in (e.g. half-opened, tabletop, etc.). You can then inflate specific layouts programmatically.

implementation "androidx.window:window:1.3.0"

val windowInfoRepo = WindowInfoTracker.getOrCreate(this)
lifecycleScope.launch {
    windowInfoRepo.windowLayoutInfo(this@MainActivity)
        .collect { layoutInfo ->
            if (layoutInfo.displayFeatures.any { it is FoldingFeature }) {
                // Inflate special fold layout
                setContentView(R.layout.activity_foldable)
            } else {
                // Inflate default layout
                setContentView(R.layout.activity_main)
            }
        }
}