How can I run a for loop through a recycler view in android?

Question

I have a recycler view in my application, and instead of executing an onclick listener, I want to click a button outside of the recycler view, which instructs the app to go through all the items in my recycler view and perform operations on items. How can I do that?

Answer 1

You can add a public method in your adapter to get the list

public List<Model> getList(){
    return modelList;
}

Get the list anywhere

List<Model> listToModify = adapter.getList();

Loop through the list and modify it, then set it to the adapter or call notifyDataSetChanged();