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androidadaptermvp

How to connect Adapter with Presenter in MVP?

In RecyclerView I have a ViewHolder with VideoView and Button "Like" with the state (selected or not).

My Presenter have a method which will update "Like" status in the model - VideoEntity. In callback I need to update View form Presenter, so I call getView().updateItem(VideoEntity entity). After that, I should find recyclerView entity position, and invalidate item. So I want to avoid that.

In classic architecture, i can call some method from ViewHolder, get some callback there and update changed data.

How to migrate this pseudo-code to MVP pattern?

@Override
public void onBindViewHolder(ContainerViewHolder holder, int position) {
    ...
    rx.subscribe(result -> holder.update(result));
}

@Override
public void onViewRecycled(ContainerViewHolder holder) {
    if (haveBackgroundRequests) { rx.unsubscribe(holder); }
}
Solution

  • One presenter for one viewHolder. I found solution here: https://github.com/remind101/android-arch-sample