getting_heights.kt

cardContainer.doOnLayout { view ->
    originalHeight = view.height
    
    // show expandView and record expandedHeight in next
    // layout pass (doOnNextLayout) and hide it immediately
    expandView.isVisible = true
    cardContainer.doOnNextLayout { view ->
        expandedHeight = view.height
        
        // We use post{} to hide the view. Otherwise the parent will not
        // measure itt again, since this block is done on the layout pass
        expandView.post { expandView.isVisible = false }
    }
}