sprockets/src/main/java/net/sf/sprockets/app/ui/UserHeaderNavigationFragment.java
public static UserHeaderNavigationFragment newInstance(@DrawableRes int headerBackground) {
        UserHeaderNavigationFragment frag = new UserHeaderNavigationFragment();
        Bundle args = Fragments.arguments(frag);
        args.putInt(HEADER_BACKGROUND, headerBackground);
        return frag;
    }
public static UserHeaderNavigationFragment newInstance(@DrawableRes int headerBackground) {
        UserHeaderNavigationFragment frag = new UserHeaderNavigationFragment();
        Bundle args = Fragments.arguments(frag);
        args.putInt(HEADER_BACKGROUND, headerBackground);
        return frag;
    }
Display the Drawable as the header background.