android - RecyclerView - get all existing views/viewholders

Question

I want to update the RecyclerView while it's displaying data, in my case, I show images with or without labels.

Defaultly I set the visibility of the label when I create the view holder and that's fine, but I want the user to change the labels visibility through the menu while the RecyclerView is shown, so I want to manually update the visibility for all existing views in the RecyclerView.

Can I somehow get all existing Views? I need all, not only the visible ones, I don't want that a later recycled View is not updated...

question from:https://stackoverflow.com/questions/34742272/recyclerview-get-all-existing-views-viewholders

Answer 1

In adapter class:

Boolean isVisible = false;

public CustomAdapter(boolean isVisible) {
    this.isVisible= isVisible;
}
    @Override
    public void onBindViewHolder(ViewHolder holder, final int position) {
     ...

         if (isVisible){
           //setVisibility(View.VISIBLE)
         }else{
         //setVisibility(View.INVISIBLE
         }
    }

public void updateVisibility(boolean newValue){
 isVisible= newValue;
}

In Activity where you want to update the value where the adapter is instantiated:

adapter.updateVisibility(false);
adapter.notifydataSetChanged();