Hide android.support.v7.widget.Toolbar programmatically

Question

In my activity I do:

setSupportActionBar(toolbar);

where toolbar is an instance of android.support.v7.widget.Toolbar

Is there any way after this to hide and show back Toolbar widget programmatically? I already tried

toolbar.setVisibility(View.INVISIBLE);

but this only makes it invisible and it still takes space, so that content of the activity starts after it, and I see white space instead in the header.

Answer 1

INVISIBLE only hides the view.

GONE however, will hide the view and prevent it from taking up any space.

toolbar.setVisibility(View.GONE);

Answer 2

Here is my code try this. It worked perfectly for me.

    private static final float APPBAR_ELEVATION = 14f;

    private void hideAppBar(final AppBarLayout appBar) {
                appBar.animate().translationY(-appBar.getHeight()).setInterpolator(new LinearInterpolator()).setDuration(500);

    }
    public void showAppBar(final AppBarLayout appBar){
                appBar.animate().translationY(0).setInterpolator(new LinearInterpolator()).setDuration(500).setListener(new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationEnd(Animator animation) {
                                appBar.setElevation(APPBAR_ELEVATION);
                            }
                });
    }

Hope this might help you