Example of TypeAdapters to convert json to Realm objects

RealmGsonParsing.java

// ref : https://gist.github.com/cmelchior/1a97377df0c49cd4fca9

private void initGson() {
    Type tokenInt = new TypeToken<RealmList<RealmInt>>(){}.getType();
    Type tokenString = new TypeToken<RealmList<RealmString>>(){}.getType();
    Type tokenDate = new TypeToken<Date>(){}.getType();
    mGson = new GsonBuilder()
            .setDateFormat("yyyy-MM-dd'T'HH:mm:ss.ssssss")
            .setExclusionStrategies(new ExclusionStrategy() {
                @Override
                public boolean shouldSkipField(FieldAttributes f) {
                    return f.getDeclaringClass().equals(RealmObject.class);
                }

                @Override
                public boolean shouldSkipClass(Class<?> clazz) {
                    return false;
                }
            })
            .registerTypeAdapter(tokenDate, new JsonDeserializer<Date>() {
                @Override
                public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
                    return DateTime.parse(json.getAsString()).toDate();
                }
            })
            .registerTypeAdapter(tokenInt, new TypeAdapter<RealmList<RealmInt>>() {
                @Override
                public void write(JsonWriter out, RealmList<RealmInt> value) throws IOException {
                }

                @Override
                public RealmList<RealmInt> read(JsonReader in) throws IOException {
                    RealmList<RealmInt> list = new RealmList<>();
                    in.beginArray();
                    while (in.hasNext()) {
                        RealmInt ri = new RealmInt();
                        ri.setVal(in.nextInt());
                        list.add(ri);
                    }
                    in.endArray();
                    return list;
                }
            })
            .registerTypeAdapter(tokenString, new TypeAdapter<RealmList<RealmString>>() {
                @Override
                public void write(JsonWriter out, RealmList<RealmString> value) throws IOException {
                }
                @Override
                public RealmList<RealmString> read(JsonReader in) throws IOException {
                    RealmList<RealmString> list = new RealmList<>();
                    in.beginArray();
                    while (in.hasNext()) {
                        RealmString rs = new RealmString();
                        rs.setVal(in.nextString());
                        list.add(rs);
                    }
                    in.endArray();
                    return list;
                }
            })
            .create();
}

how can we use it? please share a simple snippet?