将图像加载到RecyclerView中会导致“没有附加适配器;跳过布局”错误

Question

我收到一条错误消息：“没有附加适配器;跳过布局”，但是我的图像正好加载到我的LayoutManager中。但是，当我尝试向下滚动并加载其他数据时，应用程序崩溃与NullPointerException。这是我的相关代码。

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    ... 

    service.getPodcasts() 
      .subscribeOn(Schedulers.io()) 
      .observeOn(AndroidSchedulers.mainThread()) 
      .subscribe(podcasts -> mRecyclerView.setAdapter(new PodcastsAdapter(getActivity(), podcasts))); 
} 

    @Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    View rootView = inflater.inflate(R.layout.fragment_podcasts, container, false); 

    mRecyclerView = (RecyclerView) rootView.findViewById(R.id.podcasts_recycler_view); 
    mLayoutManager = new GridLayoutManager(getActivity(), 3); 
    mRecyclerView.setLayoutManager(mLayoutManager); 
    mRecyclerView.setItemAnimator(new DefaultItemAnimator()); 
    //mRecyclerView.setAdapter(mAdapter); 

    return rootView; 
} 

有关如何解决此问题的任何想法？

Answer 1

，因为你创造它，你尝试后，将其固定你没有安装转接：

在我的情况：

mRecyclerView.setAdapter(mAdapter); // Here, mAdapter is null 
mAdapter = new CountryAdapter(CountryManager.getInstance().getCountries(), R.layout.card_layout, getActivity());