RecyclerView crashes when “scrapped or attached views may not be recycled”

Question

I\'m using a simple implementation of RecyclerView taken from the Android website using a StaggeredGridLayoutManager and I keep getting this error

Answer 1

I saw this happen for me when I used a custom object in the ViewHolder for the RecyclerView adapter.

To fix the issue I cleared the custom object which in my case was a timer in the onViewRecycled(ViewHolder holder) for the adapter as below:

    public void onViewRecycled(ViewHolder holder) {
        if(holder instanceof  EntityViewHolder) {
            if(((EntityViewHolder)holder).timer != null) {
                ((EntityViewHolder) holder).timer.cancel();
            }
        }
        super.onViewRecycled(holder);
    }

This fixed the bug.