library/src/main/java/com/oguzdev/circularfloatingactionmenu/library/FloatingActionMenu.java
public void updateItemPositions() {
        // Only update if the menu is currently open
        if(!isOpen()) {
            return;
        }
        // recalculate x,y coordinates of Items
        calculateItemPositions();

        // Simply update layout params for each item
        for (int i = 0; i < subActionItems.size(); i++) {
            // This is currently done by giving them large margins
            final FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(subActionItems.get(i).width, subActionItems.get(i).height, Gravity.TOP | Gravity.LEFT);
            params.setMargins(subActionItems.get(i).x, subActionItems.get(i).y, 0, 0);
            subActionItems.get(i).view.setLayoutParams(params);
        }
    }
public void updateItemPositions() {
        // Only update if the menu is currently open
        if(!isOpen()) {
            return;
        }
        // recalculate x,y coordinates of Items
        calculateItemPositions();

        // Simply update layout params for each item
        for (int i = 0; i < subActionItems.size(); i++) {
            // This is currently done by giving them large margins
            final FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(subActionItems.get(i).width, subActionItems.get(i).height, Gravity.TOP | Gravity.LEFT);
            params.setMargins(subActionItems.get(i).x, subActionItems.get(i).y, 0, 0);
            subActionItems.get(i).view.setLayoutParams(params);
        }
    }
Recalculates the positions of each sub action item on demand.