How to change toolbar icons color on collapsing

Question

I\'m using CoordinatorLayout in my project . It works fine but there is a problem I need to fix .I\'m using white actionbar icons and When the CoordinatorLayout is expanded and

Answer 1

You can do this similar to as shown in this Stack Overflow post. Thanks to tachyonflux

final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
final CollapsingToolbarLayout collapsingToolbar = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
AppBarLayout appBar = (AppBarLayout)  findViewById(R.id.appbar);

appBar.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            if ((collapsingToolbar.getHeight() + verticalOffset) < (2 * ViewCompat.getMinimumHeight(collapsingToolbar))) {
                toolbar.getNavigationIcon().setColorFilter(getResources().getColor(R.color.white), PorterDuff.Mode.SRC_ATOP);
            } else {
                toolbar.getNavigationIcon().setColorFilter(getResources().getColor(R.color.black), PorterDuff.Mode.SRC_ATOP);
            }
        }
    });

Similarly you can apply it for any drawable or images within toolbar or collapsing toolbar layout.