RecyclerView 刷新闪烁

        /**
         * Indicates whether each item in the data set can be represented with a unique identifier
         * of type {@link java.lang.Long}.
         *
         * @param hasStableIds Whether items in data set have unique identifiers or not.
         * @see #hasStableIds()
         * @see #getItemId(int)
         */
        public void setHasStableIds(boolean hasStableIds) {
            if (hasObservers()) {
                throw new IllegalStateException("Cannot change whether this adapter has "
                        + "stable IDs while the adapter has registered observers.");
            }
            mHasStableIds = hasStableIds;
        }

DemoAdapter  mAdapter=new DemoAdapter();
mAdapter.setHasStablesId(true);

@Override
public long getItemId(int position){
    return items.get(position).getId();
}