AppBarLifListeners.kt

// activity
private val onAppBarLiftListeners = HashSet<AppBarLiftListener>()

val appBar = findViewById<AppBarLayout>(R.id.appBar)
if (appBar != null) {
    appBar.addOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener { _, verticalOffset ->
        onAppBarLiftListeners.forEach { it.onAppBarLift(verticalOffset) }
    })
}

fun addOnAppBarLiftListener(listener: AppBarLiftListener) = onAppBarLiftListeners.add(listener)
fun removeOnAppBarLiftListener(listener: AppBarLiftListener) = onAppBarLiftListeners.remove(listener)

// file
interface AppBarLiftListener {
    fun onAppBarLift(offset: Int)
}

// base fragment
addOnAppBarLiftListener(this@BaseFragment)
removeOnAppBarLiftListener(this@BaseFragment)
override fun onAppBarLift(offset: Int) {
}

// some fragment, but need to move to base
override fun onAppBarLift(offset: Int) {
    val y = -((147 / 2).toFloat() + offset.toFloat())
    if (y < 0) {
        binding.progressRetry.progress.translationY = y
        binding.progressRetry.errorLayout.view.translationY = y
    }
}