Disallow the toolbar expand on a collapsible toolbar layout

DisallowToolbarExpand.kt

internal fun disallowToolbarExpand() {
    // Taken from: https://stackoverflow.com/a/49218710/1395437
    binding.appBar.setExpanded(false, false)
    ViewCompat.setNestedScrollingEnabled(binding.content, false)
    val params = binding.appBar.layoutParams as CoordinatorLayout.LayoutParams
    if (params.behavior == null) {
        params.behavior = AppBarLayout.Behavior()
    }
    val behaviour = params.behavior as AppBarLayout.Behavior
    behaviour.setDragCallback(object : AppBarLayout.Behavior.DragCallback() {
        override fun canDrag(appBarLayout: AppBarLayout): Boolean {
            return false
        }
    })
    binding.chevron.isVisible = false
    binding.clickableLayout.isVisible = false
}