我有一个RecyclerView从API加载一些数据,包括图片URL和一些数据,并使用NetworkImageView进行延迟加载图像。
@Override
public void onResponse(List<Item> response) {
mItems.clear();
for (Item item : response) {
mItems.add(item);
}
mAdapter.notifyDataSetChanged();
mSwipeRefreshLayout.setRefreshing(false);
}
这里是适配器的实现:
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, final int position) {
if (isHeader(position)) {
return;
}
// - get element from your dataset at this position
// - replace the contents of the view with that element
MyViewHolder holder = (MyViewHolder) viewHolder;
final Item item = mItems.get(position - 1); // Subtract 1 for header
holder.title.setText(item.getTitle());
holder.image.setImageUrl(item.getImg_url(), VolleyClient.getInstance(mCtx).getImageLoader());
holder.image.setErrorImageResId(android.R.drawable.ic_dialog_alert);
holder.origin.setText(item.getOrigin());
}
问题是当我们在recyclerView中进行刷新时,它会在开始时闪烁一小段时间,看起来很奇怪。
我只是使用了GridView/ListView,它按照我的预期工作。 没有闪烁。
在我的Fragment的onViewCreated中配置RecycleView:
mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
mGridLayoutManager = (GridLayoutManager) mRecyclerView.getLayoutManager();
mGridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
return mAdapter.isHeader(position) ? mGridLayoutManager.getSpanCount() : 1;
}
});
mRecyclerView.setAdapter(mAdapter);
有人遇到过这样的问题吗?可能是什么原因呢?