// Было. Теперь deprecated 

val sizeClass = WindowSizeClass.compute(widthDp, heightDp)
when (sizeClass.widthSizeClass) {
  COMPACT -> doCompact()
  MEDIUM -> doMedium()
  EXPANDED -> doExpanded()
  else -> doDefault()
}

// Стало в 1.4
val sizeClass = WindowSizeClass.BREAKPOINTS_V1
                               .computeWindowSizeClass(widthDp, heightDp)


// Проверяем от самого большого размера к наименьшему
when {
  sizeClass.isWidthAtLeastBreakpoint(WIDTH_DP_EXPANDED_LOWER_BOUND) -> {
    doExpanded()
  }
  sizeClass.isWidthAtLeastBreakpoint(WIDTH_DP_MEDIUM_LOWER_BOUND) -> {
    doMedium()
  }
  else -> {
    // Ветка по умолчанию должна быть для
    // самого маленького поддерживаемого UI
    doCompact() 
  }
}

val splitAttributesBuilder: SplitAttributes.Builder = SplitAttributes.Builder()
   .setSplitType(SplitAttributes.SplitType.ratio(0.33f))
   .setLayoutDirection(SplitAttributes.LayoutDirection.LEFT_TO_RIGHT)

if (WindowSdkExtensions.getInstance().extensionVersion >= 6) {
   splitAttributesBuilder.setDividerAttributes(
       DividerAttributes.DraggableDividerAttributes.Builder()
           .setColor(getColor(context, R.color.divider_color))
           .setWidthDp(4)
           .setDragRange(
               DividerAttributes.DragRange.DRAG_RANGE_SYSTEM_DEFAULT)
           .build()
   )
}
val splitAttributes: SplitAttributes = splitAttributesBuilder.build()

fun pinActivityStackExample(taskId: Int) {
 val splitAttributes: SplitAttributes = SplitAttributes.Builder()
   .setSplitType(SplitAttributes.SplitType.ratio(0.66f))
   .setLayoutDirection(SplitAttributes.LayoutDirection.LEFT_TO_RIGHT)
   .build()

 val pinSplitRule = SplitPinRule.Builder()
   .setDefaultSplitAttributes(splitAttributes)
   .build()

 SplitController.getInstance(applicationContext)
   .pinTopActivityStack(taskId, pinSplitRule)
}