Show_Me_The_SnackBar With RxAndroid

public class RxSnackBar {

    private static int NONE = 0;
    private final static String DEF_MESSAGE = "RxSnackBar";
    private final static String DEF_ACTION = "ACTION";

    private static Snackbar snackbar;

    private final View rootView;
    private final int messageID;
    private final CharSequence messageCharSequence;
    private final int flag;
    private final int actionID;
    private final CharSequence actionCharSequence;
    private final int messageColor;
    private final int backGroundColor;

    public static class Builder {

        private final View rootView;
        private final int messageID;
        private final CharSequence messageCharSequence;

        private int flag = Snackbar.LENGTH_LONG;
        private int actionID = NONE;
        private CharSequence actionCharSequence = DEF_ACTION;
        private int messageColor = NONE;
        private int backGroundColor = NONE;


        public Builder(View rootView, int messageID) {
            this.rootView = rootView;
            this.messageID = messageID;
            this.messageCharSequence = DEF_MESSAGE;
        }


        public Builder(View rootView, CharSequence messageCharSequence) {
            this.rootView = rootView;
            this.messageID = NONE;
            this.messageCharSequence = messageCharSequence;
        }


        public Builder setFlag(int flag) {
            this.flag = flag;
            return this;
        }


        public Builder setActionID(int actionID) {
            this.actionID = actionID;
            this.actionCharSequence = DEF_ACTION;
            return this;
        }


        public Builder setActionCharSequence(CharSequence actionCharSequence) {
            this.actionID = NONE;
            this.actionCharSequence = actionCharSequence;
            return this;
        }


        public Builder setMessageColor(int messageColor) {
            this.messageColor = messageColor;
            return this;
        }


        public Builder setBackGroundColor(int backGroundColor) {
            this.backGroundColor = backGroundColor;
            return this;
        }


        public RxSnackBar build() {
            return new RxSnackBar(this);
        }
    }


    private RxSnackBar(Builder builder) {
        rootView = builder.rootView;
        messageID = builder.messageID;
        messageCharSequence = builder.messageCharSequence;
        flag = builder.flag;
        actionID = builder.actionID;
        actionCharSequence = builder.actionCharSequence;
        messageColor = builder.messageColor;
        backGroundColor = builder.backGroundColor;
    }


    public Observable<Boolean> showMeTheSnack() {
        return Observable.create((Subscriber<? super Boolean> subscriber) -> {
            if (messageID == NONE) {
                snackbar = Snackbar.make(rootView, messageCharSequence, flag);
            } else {
                snackbar = Snackbar.make(rootView, messageID, flag);
            }

            if (actionID == NONE) {
                snackbar.setAction(actionCharSequence, v -> subscriber.onNext(true));
            } else {
                snackbar.setAction(actionID, v -> subscriber.onNext(true));
            }

            if (messageColor != NONE) {
                ((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setTextColor(messageColor);
            }
            if (backGroundColor != NONE) {
                snackbar.getView().setBackgroundResource(backGroundColor);
            }


            snackbar.setCallback(new Snackbar.Callback() {
                @Override
                public void onDismissed(Snackbar snackbar, int event) {
                    super.onDismissed(snackbar, event);
                    subscriber.onCompleted();
                    subscriber.unsubscribe();
                }
            });
            subscriber.add(Subscriptions.create(snackbar::dismiss));
            snackbar.show();
        }).observeOn(AndroidSchedulers.mainThread());
    }


    public static void dismiss() {
        if (snackbar != null) {
            snackbar.dismiss();
        }
    }
}