library/src/main/java/de/mrapp/android/view/FloatingActionButton.java
private int getPixelSize() {
        if (getSize() == Size.NORMAL) {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_normal);
        } else if (getSize() == Size.SMALL) {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_small);
        } else {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_large);
        }
    }
private int getPixelSize() {
        if (getSize() == Size.NORMAL) {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_normal);
        } else if (getSize() == Size.SMALL) {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_small);
        } else {
            return getResources().getDimensionPixelSize(R.dimen.floating_action_button_size_large);
        }
    }
Returns the size of the floating action button in pixels, depending on its current size.

@return The size of the floating action button in pixels as an {@link Integer} value