Is it possible to create a dynamic RecyclerView Adapter that accepts List of any Object List

Question

Case 1: Show list of productName in View while sending List<Products> productList in adapter constructor.

Case 2: Show list of categoryName in View while sending List<Category> categoryList in adapter constructor.

Both the cases must use the same RecyclerView Adapter.

The adapter may have List<Object> objectList. But how can show different property of the different object in the View

Possible duplicate of [How to create RecyclerView with multiple view type?](https://stackoverflow.com/questions/26245139/how-to-create-recyclerview-with-multiple-view-type) — Onur D., Oct 08 '18 at 15:43
I wanted something different. Probably you didn't understood. @OnurD. — Mehedi Hasan Chonchol, Oct 08 '18 at 16:39
I think I understood correctly. As you said, you can keep a list of Objects in your adapter while having multiple ViewHolders in it. A ProductViewHolder for a Product, a CategoryViewHolder for a Category object etc. After this, it all comes to putting if-else or switch-case conditions on your `getItemViewType()` method as well as `onCreateViewHolder()` — Onur D., Oct 08 '18 at 16:44
Not multiple view holder actually. I just wanted to use the same `viewHolder` for different `List` of Objects. — Mehedi Hasan Chonchol, Oct 08 '18 at 17:22

score 1 · Accepted Answer · answered Oct 08 '18 at 15:10

Check the type:

@Override
public void onBindViewHolder(WhateverHolder holder, int position) {
    Object item = itemsList.get(position);

    if (item instanceof Products) {
        Product product = (Product) item;
        //populate the ViewHolder with the information
    } else if (item instanceof Category) {
        Category category = (Category) item;
        //populate the ViewHolder
    } else {
        throw IllegalArgumentException("Invalid item: " + item.getClass().getCanonicalName()); //this is optional 
    }
}

Thanks @TheWanderer. Your solution worked. I wanted exactly this type. — Mehedi Hasan Chonchol, Oct 08 '18 at 16:37

1 Answers1