mPagerAdapter = new PagerAdapter();
vViewPager.setAdapter(mPagerAdapter);

public class PagerAdapter extends RecyclerPagerAdapter<RecyclerPagerAdapter.ViewHolder> {

  private List<Type> mData;

  public PagerAdapter() {
    mData = new ArrayList<>();
    mData.add(Type.LOADING);
    for (int i = 0; i < 50; i++) {
      mData.add(Type.ITEM);
    }
  }

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

  @Override
  public int getItemViewType(int position) {
    return mData.get(position).getValue();
  }

  @Override
  public void onBindViewHolder(RecyclerPagerAdapter.ViewHolder holder, int position) {
    if (holder instanceof ItemViewHolder) {
      ((ItemViewHolder) holder).bind(position);
    }
  }

  @Override
  public RecyclerPagerAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    if (Type.valueOf(viewType) == Type.LOADING) {
      return new LoadingViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_loading, parent, false), v -> {
        mData.remove(0);
        notifyDataSetChanged();
      });
    } else {
      return new ItemViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_pager, parent, false));
    }
  }

  public enum Type {
    LOADING(0), ITEM(1);

    public static Type valueOf(int value) {
      if (value == 0) {
        return LOADING;
      } else if (value == 1) {
        return ITEM;
      }
      return null;
    }

    private final int mValue;

    Type(int value) {
      mValue = value;
    }

    public int getValue() {
      return mValue;
    }
  }

  public static class ItemViewHolder extends RecyclerPagerAdapter.ViewHolder {

    @Bind(R.id.text) TextView vText;

    public ItemViewHolder(View itemView) {
      super(itemView);
      ButterKnife.bind(this, itemView);
    }

    public void bind(int position) {
      vText.setText(String.format(Locale.US, "Pager %d", position));
    }
  }

  public static class LoadingViewHolder extends RecyclerPagerAdapter.ViewHolder {

    public LoadingViewHolder(View itemView, View.OnClickListener onClickListener) {
      super(itemView);
      itemView.setOnClickListener(onClickListener);
    }
  }
}