java - 回收器 View : No adapter attached; skipping layout (no shw Slider and photos Picasso and Sliderbanner

Question

我有这个问题RecyclerView:没有连接适配器；跳过布局

java、安卓

我的 fragment

public class HomeFragment extends Fragment implements ILookbookLoadListener, IBannerLoadListener {

private Unbinder unbinder;

@BindView(R.id.layout_user_information)
LinearLayout layout_user_information;
@BindView(R.id.txt_user_name)
TextView txt_user_name;
@BindView(R.id.banner_slider)
Slider banner_slider;
@BindView(R.id.recycler_look_book)
RecyclerView recycler_look_book;
//FireStore

CollectionReference bannerRef,lookbookRef;

//Interface
IBannerLoadListener iBannerLoadListener;
ILookbookLoadListener iLookbookLoadListener;



public HomeFragment() {

    bannerRef = FirebaseFirestore.getInstance().collection("Banner");
    lookbookRef = FirebaseFirestore.getInstance().collection("Lookbook");
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment_home,container,false);
    unbinder = ButterKnife.bind(this,view);

    //init
    Slider.init(new PicassoImageLoadingService());
    iBannerLoadListener =this;
    iLookbookLoadListener = this;

    //check if loged
    if (AccountKit.getCurrentAccessToken() != null)
    {
        setUserInformation();
        loadBanner();
        loadLookBook();
    }
    return view;
}

private void loadLookBook() {
    lookbookRef.get()
            .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                @Override
                public void onComplete(@NonNull Task<QuerySnapshot> task) {
                    List<Banner> lookbooks = new ArrayList<>();
                    if (task.isSuccessful())
                    {
                        for (QueryDocumentSnapshot bannerSnapShot:task.getResult())
                        {
                            Banner banner = bannerSnapShot.toObject(Banner.class);
                            lookbooks.add(banner);
                        }
                        iLookbookLoadListener.onLookbookLoadSuccess(lookbooks);
                    }

                }
            }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            iLookbookLoadListener.onLookbookLoadFailed(e.getMessage());

        }
    });

}

private void loadBanner() {
    bannerRef.get()
            .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                @Override
                public void onComplete(@NonNull Task<QuerySnapshot> task) {
                    List<Banner> banners = new ArrayList<>();
                    if (task.isSuccessful())
                    {
                        for (QueryDocumentSnapshot bannerSnapShot:task.getResult())
                        {
                            Banner banner = bannerSnapShot.toObject(Banner.class);
                            banners.add(banner);
                        }
                        iBannerLoadListener.onBannerLoadSuccess(banners);
                    }

                }
            }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            iBannerLoadListener.onBannerLoadFailed(e.getMessage());

        }
    });
}

private void setUserInformation() {
    layout_user_information.setVisibility(View.VISIBLE);
    txt_user_name.setText(Common.currentUser.getName());
}

@Override
public void onLookbookLoadSuccess(List<Banner> banners) {
    recycler_look_book.setHasFixedSize(true);
    recycler_look_book.setLayoutManager(new LinearLayoutManager(getActivity()));
    recycler_look_book.setAdapter(new LookbookAdapter(getActivity(),banners));

}

@Override
public void onLookbookLoadFailed(String message) {
    Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();

}

@Override
public void onBannerLoadSuccess(List<Banner> banners) {
    banner_slider.setAdapter(new HomeSliderAdapter(banners));

}

@Override
public void onBannerLoadFailed(String message) {
    Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();

}

}

适配器

public class LookbookAdapter extends RecyclerView.Adapter<LookbookAdapter.MyviewHolder> {
Context context;
List<Banner> lookbook;

public LookbookAdapter(Context context, List<Banner> lookbook) {
    this.context = context;
    this.lookbook = lookbook;
}

@NonNull
@Override
public MyviewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    View itemView = LayoutInflater.from(context)
            .inflate(R.layout.layout_look_book,viewGroup,false);
    return new MyviewHolder(itemView);
}

@Override
public void onBindViewHolder(@NonNull MyviewHolder myviewHolder, int i) {
    Picasso.get().load(lookbook.get(i).getImage()).into(myviewHolder.imageView);

}

@Override
public int getItemCount() {
    return lookbook.size();
}

public class MyviewHolder extends RecyclerView.ViewHolder{
    ImageView imageView;
    public MyviewHolder(@NonNull View itemView) {
        super(itemView);

        imageView = (ImageView)itemView.findViewById(R.id.image_look_book);
    }
}

}

slider 适配器

public class HomeSliderAdapter extends SliderAdapter {
List<Banner> bannerList;

public HomeSliderAdapter(List<Banner> bannerList) {
    this.bannerList = bannerList;
}

@Override
public int getItemCount() {
    return bannerList.size();
}

@Override
public void onBindImageSlide(int position, ImageSlideViewHolder imageSlideViewHolder) {
    imageSlideViewHolder.bindImageSlide(bannerList.get(position).getImage());

}

}

Answer 1

@Override
public void onLookbookLoadSuccess(List<Banner> banners) {
    recycler_look_book.setHasFixedSize(true);
    recycler_look_book.setLayoutManager(new LinearLayoutManager(getActivity()));
    recycler_look_book.setAdapter(new LookbookAdapter(getActivity(),banners));

}

只有当响应成功时才会连接您的适配器，如上所示。因此，如果您的响应不成功，您的适配器将不会附加到 recyclerView。其实这是一个警告。所以你应该记录你的回应。