RectRulers

import androidx.compose.foundation.background import androidx.compose.foundation.layout.Box import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.layout.Layout import androidx.compose.ui.layout.WindowInsetsRulers import androidx.compose.ui.layout.layout import androidx.compose.ui.unit.Constraints Layout(  modifier = Modifier.fillMaxSize(),  content = {  Box(Modifier.background(Color.Blue)) // top area (e.g. status bar)  Box(Modifier.background(Color.Yellow)) // bottom area (e.g. navigation bar)  Box(Modifier.background(Color.White)) // content between top and bottom  },  measurePolicy = { measurables, constraints ->  if (constraints.hasBoundedWidth && constraints.hasBoundedHeight) {  val width = constraints.maxWidth  val height = constraints.maxHeight  layout(width, height) {  val top =  maxOf(0, WindowInsetsRulers.SystemBars.current.top.current(0f).roundToInt())  val topArea = measurables[0].measure(Constraints.fixed(width, top))  topArea.place(0, 0)  val bottom =  minOf(  height,  WindowInsetsRulers.SystemBars.current.bottom.current(0f).roundToInt(),  )  val bottomArea =  measurables[1].measure(Constraints.fixed(width, height - bottom))  bottomArea.place(0, bottom)  val contentArea = measurables[2].measure(Constraints.fixed(width, bottom - top))  contentArea.place(0, top)  }  } else {  // It should only get here if inside scrollable content or trying to align  // to an alignment line. Only place the content.  val placeable = measurables[2].measure(constraints) // content  layout(placeable.width, placeable.height) { placeable.place(0, 0) }  }  }, )