How to tell IDEA/Studio that the null check has been done?

Question

I\'m developing with Android Studio/IntelliJ IDEA.

I have enabled the inspection check called "Constant conditions & exceptions" that shows a warning if

Answer 1

You can use @SuppressWarnings("ConstantConditions") annotation.

@SuppressWarnings("ConstantConditions")
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int indexViewType) {
    if (inflater == null) {
        inflater = LayoutInflater.from(parent.getContext());
    }
    ItemViewProvider provider = getProviderByIndex(indexViewType);
    provider.adapter = MultiTypeAdapter.this;
    return provider.onCreateViewHolder(inflater, parent);
}