Wrapper for adapter to show any view instead of empty list

NonEmptyRecyclerViewAdapterWrapper.java

import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.List;

public final class NonEmptyRecyclerViewAdapterWrapper
        extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private static final int PLACEHOLDER_VIEW_TYPE = Integer.MAX_VALUE - 117;
    @NonNull
    private final ViewProvider viewProvider;
    @NonNull
    private RecyclerView.Adapter adapter;
    private boolean adapterIsEmpty;

    private NonEmptyRecyclerViewAdapterWrapper(@NonNull RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter,
            @NonNull ViewProvider viewProvider) {
        this.adapter = adapter;
        this.viewProvider = viewProvider;

        forwardAdapterDataObserver();
    }

    private void forwardAdapterDataObserver() {
        this.adapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
            @Override
            public void onChanged() {
                NonEmptyRecyclerViewAdapterWrapper.this.adapter.unregisterAdapterDataObserver(this);
                notifyDataSetChanged();
                NonEmptyRecyclerViewAdapterWrapper.this.adapter.registerAdapterDataObserver(this);
            }
        });
    }

    public static RecyclerView.Adapter wrap(@NonNull RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter,
            int layoutRes) {
        return new NonEmptyRecyclerViewAdapterWrapper(adapter, new ViewProvider() {
            @Override
            public View getView(@NonNull ViewGroup parent) {
                return LayoutInflater.from(parent.getContext())
                        .inflate(layoutRes, parent, false);
            }
        });
    }

    public static RecyclerView.Adapter wrap(@NonNull RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter,
            View view) {
        return new NonEmptyRecyclerViewAdapterWrapper(adapter, new ViewProvider() {
            @Override
            public View getView(@NonNull ViewGroup parent) {
                return view;
            }
        });
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (adapterIsEmpty && viewType == PLACEHOLDER_VIEW_TYPE) {
            return new RecyclerView.ViewHolder(viewProvider.getView(parent)) {
            };
        }
        return adapter.onCreateViewHolder(parent, viewType);
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        if (!adapterIsEmpty) {
            //noinspection unchecked
            adapter.onBindViewHolder(holder, position);
        }
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder,
            int position,
            List<Object> payloads) {
        if (!adapterIsEmpty) {
            //noinspection unchecked
            adapter.onBindViewHolder(holder, position, payloads);
        }
    }

    @Override
    public int getItemViewType(int position) {
        return adapterIsEmpty ? PLACEHOLDER_VIEW_TYPE : adapter.getItemViewType(position);
    }

    @Override
    public void setHasStableIds(boolean hasStableIds) {
        adapter.setHasStableIds(hasStableIds);
    }

    @Override
    public long getItemId(int position) {
        return adapterIsEmpty ? RecyclerView.NO_ID : adapter.getItemId(position);
    }

    @Override
    public int getItemCount() {
        int adapterItemCount = adapter.getItemCount();

        if (adapterItemCount == 0) {
            adapterIsEmpty = true;
            return 1;
        }

        adapterIsEmpty = false;
        return adapterItemCount;
    }

    @Override
    public void onViewRecycled(RecyclerView.ViewHolder holder) {
        //noinspection unchecked
        adapter.onViewRecycled(holder);
    }

    @Override
    public boolean onFailedToRecycleView(RecyclerView.ViewHolder holder) {
        //noinspection unchecked
        return adapter.onFailedToRecycleView(holder);
    }

    @Override
    public void onViewAttachedToWindow(RecyclerView.ViewHolder holder) {
        //noinspection unchecked
        adapter.onViewAttachedToWindow(holder);
    }

    @Override
    public void onViewDetachedFromWindow(RecyclerView.ViewHolder holder) {
        //noinspection unchecked
        adapter.onViewDetachedFromWindow(holder);
    }

    @Override
    public void registerAdapterDataObserver(RecyclerView.AdapterDataObserver observer) {
        adapter.registerAdapterDataObserver(observer);
    }

    @Override
    public void unregisterAdapterDataObserver(RecyclerView.AdapterDataObserver observer) {
        adapter.unregisterAdapterDataObserver(observer);
    }

    @Override
    public void onAttachedToRecyclerView(RecyclerView recyclerView) {
        adapter.onAttachedToRecyclerView(recyclerView);
    }

    @Override
    public void onDetachedFromRecyclerView(RecyclerView recyclerView) {
        adapter.onDetachedFromRecyclerView(recyclerView);
    }

    private interface ViewProvider {
        View getView(@NonNull ViewGroup parent);
    }

}