@Override
public void destroyItem(ViewGroup collection, int position, Object object) {
EfficientViewHolder viewHolder = (EfficientViewHolder) object;
collection.removeView(viewHolder.getView());
onViewDetachedFromWindow(viewHolder);
int viewType = getItemViewType(position);
List<EfficientViewHolder> viewHolders = mRecycleViewHolders.get(viewType);
if (viewHolders == null) {
viewHolders = new ArrayList<>();
}
mRecycleViewHolders.put(viewType, viewHolders);
viewHolders.add(viewHolder);
}
@Override
public Object instantiateItem(ViewGroup collection, int position) {
int viewType = getItemViewType(position);
List<EfficientViewHolder> viewHolders = mRecycleViewHolders.get(viewType);
EfficientViewHolder viewHolder;
if (viewHolders == null || viewHolders.isEmpty()) {
viewHolder = onCreateViewHolder(collection, viewType);
} else {
viewHolder = viewHolders.remove(0);
onViewRecycled(viewHolder);
}
onBindViewHolder(viewHolder, position);
collection.addView(viewHolder.getView(), 0);
onViewAttachedToWindow(viewHolder);
return viewHolder;
}