FloatingActionButton doesn't hide

Question

I am trying to hide my FloatingActionButton fabLocation programmatically with :

fabLocation.setVisibility(View.GONE)

but it do

Answer 1

here is simple solution

private var fabAnchorId: Int = View.NO_ID
private val fabParams: CoordinatorLayout.LayoutParams
        get() = (fab.layoutParams as CoordinatorLayout.LayoutParams)

fun showFab() {
    fabParams.anchorId = fabAnchorId
    fabParams.gravity = Gravity.NO_GRAVITY
    fab.show()
}

fun hideFab() {
    fabParams.anchorId = View.NO_ID
    fabParams.gravity = Gravity.END.or(Gravity.BOTTOM)
    fab.hide()
}

before show/hide we have to change anchor and gravity