@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mRecyclerView = findViewById(R.id.recycledMovies);
        mLayoutManager = new GridLayoutManager(this, 2);
        mRecyclerView.setLayoutManager(mLayoutManager);

        mRecyclerViewAdapter = new Movie_Adapter(this);
        mRecyclerView.setAdapter(mRecyclerViewAdapter);

        favoriteViewModel = ViewModelProviders.of(MainActivity.this).get(FavoriteViewModel.class);

        if (savedInstanceState != null) {
            Log.d(TAG, "onCreate savedInstance is called");
            mListState = savedInstanceState.getParcelable(LIST_STATE_KEY);
            mLayoutManager.onRestoreInstanceState(mListState);
        }


        if (isOnline()) {
            callMoviePopular();
            Toast.makeText(MainActivity.this, "You are connected to the Internet.", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(getApplicationContext(), "You have no internet connection. Favorites are displayed", Toast.LENGTH_LONG).show();
            getFavoriteMovies();
            favorites = true;
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        Log.d(TAG, "onSaveInstanceState is called");
        mListState = mLayoutManager.onSaveInstanceState();
        outState.putParcelable(LIST_STATE_KEY, mListState);
        super.onSaveInstanceState(outState);
    }