Some fake modifiers to teach Compose's centering idiom.

CenterModifier.kt

@file:Suppress("NOTHING_TO_INLINE", "UnusedReceiverParameter")
@file:SuppressLint("ModifierFactoryUnreferencedReceiver")

import android.annotation.SuppressLint
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.wrapContentHeight
import androidx.compose.foundation.layout.wrapContentSize
import androidx.compose.foundation.layout.wrapContentWidth
import androidx.compose.ui.Modifier
import kotlin.DeprecationLevel.ERROR

/**
 * Fake modifier to teach Compose's centering idiom. In Compose, the way you center something is to
 * use [fillMaxSize] to fill the maximum incoming constraints, and then [wrapContentSize] to allow the
 * content to be as small as it wants and center it in the available space.
 */
@Deprecated(
  "Use fillMaxSize().wrapContentSize() instead.",
  ReplaceWith(
    "fillMaxSize().wrapContentSize()",
    "androidx.compose.foundation.layout.fillMaxSize",
    "androidx.compose.foundation.layout.wrapContentSize"
  ),
  level = ERROR
)
public inline fun Modifier.center(): Modifier =
  error("Use fillMaxSize().wrapContentSize() instead.")

/**
 * Fake modifier to teach Compose's centering idiom. In Compose, the way you center something is to
 * use [fillMaxWidth] to fill the maximum incoming constraints, and then [wrapContentWidth] to allow
 * the content to be as small as it wants and center it in the available space.
 */
@Deprecated(
  "Use fillMaxHeight().wrapContentHeight() instead.",
  ReplaceWith(
    "fillMaxHeight().wrapContentHeight()",
    "androidx.compose.foundation.layout.fillMaxHeight",
    "androidx.compose.foundation.layout.wrapContentHeight"
  ),
  level = ERROR
)
public inline fun Modifier.centerVertically(): Modifier =
  error("Use fillMaxHeight().wrapContentHeight() instead.")

/**
 * Fake modifier to teach Compose's centering idiom. In Compose, the way you center something is to
 * use [fillMaxHeight] to fill the maximum incoming constraints, and then [wrapContentHeight] to allow
 * the content to be as small as it wants and center it in the available space.
 */
@Deprecated(
  "Use fillMaxWidth().wrapContentWidth() instead.",
  ReplaceWith(
    "fillMaxWidth().wrapContentWidth()",
    "androidx.compose.foundation.layout.fillMaxWidth",
    "androidx.compose.foundation.layout.wrapContentWidth"
  ),
  level = ERROR
)
public inline fun Modifier.centerHorizontally(): Modifier =
  error("Use fillMaxWidth().wrapContentWidth() instead.")