Question

我在做聊天应用程序。我想将新出现的消息项放在RecyclerView的顶部位置。为此，我想将即将发送的Id与存储在ArrayList特定位置的所有Id进行匹配。如何在“我的代码”中搜索包含位置的ID。请一些想法。我的代码在

之下

 @Override
public void onBindViewHolder(ChatViewHolder holder, final int position) {

    if (chatList.get(position).modelType == ChatMasterModel.TYPE_USER) {
        try {
            final ChatUserModel userModel = (ChatUserModel) chatList.get(position).modelObj;



            holder.tvBuddyName.setText(userModel.getUserName() + " " + userModel.getUserLastName());
            final String complete_name = userModel.getUserName() + " " + userModel.getUserLastName();
            new ImageLoader(activity).DisplayImage(userModel.getUser_image(), holder.ivChatProfilePic, R.drawable.person_icon);




            holder.chatBuddyList.llChatBuddyItem.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent = new Intent(activity, ChatBuddtDetailsActivity.class);
                    intent.putExtra("user_id", userModel.getUserId());
                    intent.putExtra("header_name", complete_name);
                    intent.putExtra("user_image", userModel.getUser_image());
                    activity.startActivity(intent);
                }
            });

        } catch (Exception e) {
        }
    } else if (chatList.get(position).modelType == ChatMasterModel.TYPE_GROUP) {
        try {
            final ChatGroupModel groupModel = (ChatGroupModel) chatList.get(position).modelObj;
            new ImageLoader(activity).DisplayImage(groupModel.getGroup_iamge(), holder.ivChatProfilePic, R.drawable.person_icon);
            holder.tvBuddyName.setText(groupModel.getGroupMembers());

           /* if (msg_from.contains(groupModel.getGroupMemberId())) {
                Toast.makeText(activity, "Group contains ID", Toast.LENGTH_SHORT).show();
            }*/

            holder.chatBuddyList.llChatBuddyItem.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent = new Intent(activity, ChatBuddtDetailsActivity.class);
                    intent.putExtra("group_id", groupModel.getGroup_id());
                    intent.putExtra("group_member_id", groupModel.getGroupMemberId());
                    intent.putExtra("header_name", groupModel.getGroupMembers());
                    intent.putExtra("user_image", groupModel.getGroup_iamge());
                    activity.startActivity(intent);
                }
            });


        } catch (Exception e) {
        }
    }
}

@Override
public int getItemCount() {
    return chatList.size();
}

@Override
public int getItemViewType(int position) {
    return super.getItemViewType(position);
}

}

Answer 1

将时间戳存储在带有时间戳的arralist和sort数组中，然后发送到recyclerview addafter然后发送给notifyadapter

检查在RecyclerView中保存ID的位置

1 个答案: