Future Builder返回Null

Question

FutureBuilder返回null，即使我能够从 杰森。

这是我在FutureBuilder的将来提供的功能

function* fetchMovies({ page }: FetchMoviesAction) {
  yield put({ type: MoviesTypes.ADD_MOVIES, movies: [] }); // good
  yield put({ type: 'BAD_TYPE' }); // good
}

function* watchFetchMovies() {
  yield takeEvery(MoviesTypes.FETCH_MOVIES, fetchMovies);
}

这是FutureBuilder小部件

Future<Map> setVarsHome() async {
      resultJson = await requestHomeAPI(context);
      print("RESULTJSON");
      print(resultJson);
      return resultJson;
    }