[英]Adding new image on the top of recyclerview
我試圖在頂部顯示新的更新。 我正在使用Firebase和recyclerview。
@Override
protected void onStart() {
super.onStart();
FirebaseRecyclerAdapter<Feed,FeedViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Feed, FeedViewHolder>(
Feed.class,R.layout.news_feed_row,FeedViewHolder.class,mDatabase
) {
@Override
protected void populateViewHolder(FeedViewHolder viewHolder, Feed model, int position) {
viewHolder.setdesc(model.getDesc());
viewHolder.setimage(getApplicationContext(),model.getImage());
}
};
mNews_Feed_list.setAdapter(firebaseRecyclerAdapter);
}
public static class FeedViewHolder extends RecyclerView.ViewHolder{
View mView;
public FeedViewHolder(View itemView) {
super(itemView);
mView = itemView;
}
public void setdesc(String desc){
TextView post_desc_value = (TextView) mView.findViewById(R.id.post_desc_card_view);
post_desc_value.setText(desc);
}
public void setimage(final Context ctx, final String image){
final ImageView post_image = (ImageView) mView.findViewById(R.id.post_image_card_view);
Glide.with(ctx).load(image).diskCacheStrategy(DiskCacheStrategy.ALL).into(post_image);
}
}
將此方法添加到適配器中,並調用它以將新項添加到回收者視圖
public void addItem(Feed model){
<your list name>.add(0, model);
notifyItemInserted(0);
mRecyclerView.smoothScrollToPosition(0);
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.