@Override public boolean layoutDependsOn(final CoordinatorLayout parent, final FloatingActionButton child, final View dependency) {
		return super.layoutDependsOn(parent, child, dependency) || isBottomSheet(dependency);
	}
Expand the default behavior of FloatingActionButton to support {@link BottomSheetBehavior}

Created by Oasis on 2016/6/24.
mobile/src/main/java/com/oasisfeng/island/util/FloatingActionButtonBehavior.java