Implementing Recyclerview Adapter with DiffCallBack

PostAdapterGist.kt

class PostAdapter :
    ListAdapter<Post, PostAdapter.ViewHolder>(TaskDiffCallBack()) {


    //This check runs on background thread
    class TaskDiffCallBack : DiffUtil.ItemCallback<Post>() {
        override fun areItemsTheSame(oldItem: Post, newItem: Post): Boolean {
            Log.d(TAG,Thread.currentThread().name)
            return oldItem.id == newItem.id;
        }

        override fun areContentsTheSame(oldItem: Post, newItem: Post): Boolean {
            Log.d(TAG,Thread.currentThread().name)
            return oldItem == newItem
        }
    }