FloatingActionButton doesn't hide

Question

I am trying to hide my FloatingActionButton fabLocation programmatically with :

fabLocation.setVisibility(View.GONE)

but it do

Answer 1

If you want to hide the fab, you can try this: fab.hide();

else try fab.show();

enjoy.

Answer 2

To hide the floating button

fab = (FloatingActionButton) findViewById(R.id.fab);
CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutParams();
p.setAnchorId(View.NO_ID);
fab.setLayoutParams(p);
fab.hide;

and to re-show

fab = (FloatingActionButton) findViewById(R.id.fab);
CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutParams();
p.setAnchorId(View.NO_ID);
fab.setLayoutParams(p);
fab.show;

Answer 3

None of these other solutions helped me 100%. I needed repeated, animated show and hide (like FAB.show() and hide()) all while anchored to the app bar when visible.

I ended up creating the FAB new every time I showed it, manually inserting and anchoring it, and animating it based on the support library implementation. It's gross, but it works perfectly.

private void hidePlayButton(final FloatingActionButton fab) {
    // Cancel any animation from the default behavior
    fab.animate().cancel();
    fab.animate()
               .scaleX(0f)
               .scaleY(0f)
               .alpha(0f)
               .setDuration(200)
               .setInterpolator(new FastOutLinearInInterpolator())
               .setListener(new Animator.AnimatorListener() {
                   @Override public void onAnimationStart(Animator animation) {}

                   @Override public void onAnimationEnd(Animator animation) {
                      coordinatorLayout.removeView(fab);
                   }

                   @Override public void onAnimationCancel(Animator animation) {}

                   @Override public void onAnimationRepeat(Animator animation) {}
               });
}

private void showPlayButton() {
    int fabSize = getResources().getDimensionPixelSize(R.dimen.fab_size);
    int margin = getResources().getDimensionPixelSize(R.dimen.fab_margin);
    final FloatingActionButton fab = new FloatingActionButton(getActivity());
    fab.setBackgroundTintList(ColorStateList.valueOf(ContextCompat.getColor(getActivity(), R.color.tint)));
    fab.setImageDrawable(ContextCompat.getDrawable(getActivity(), R.drawable.play));
    CoordinatorLayout.LayoutParams p = new CoordinatorLayout.LayoutParams(fabSize, fabSize);
    p.rightMargin = p.leftMargin = p.bottomMargin = p.topMargin = margin;
    p.anchorGravity = Gravity.BOTTOM | Gravity.END;
    p.setAnchorId(R.id.appbar);
    fab.setLayoutParams(p);
    // Start from 1 pixel
    fab.setAlpha(0f);
    fab.setScaleX(0f);
    fab.setScaleY(0f);
    binding.coordinatorLayout.addView(fab);
    fab.animate()
       .alpha(1f)
       .scaleX(1f)
       .scaleY(1f)
       .setDuration(200)
       .setInterpolator(new FastOutLinearInInterpolator());

    fab.setOnClickListener(new View.OnClickListener() {
        @Override public void onClick(View v) {
            hidePlayButton(fab);
            // do action
        }
    });
}

Answer 4

Simple code :

   public static void setVisibilityFab(FloatingActionButton fab, int visibility)
  {

        CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutParams();
        p.setAnchorId(View.NO_ID);
        fab.setLayoutParams(p);
        if(visibility==View.GONE || visibility==View.INVISIBLE)
            fab.setVisibility(View.GONE);
        else
            fab.setVisibility(View.VISIBLE);
    }

Answer 5

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