为什么我的 TextView 为空，尽管我从数据库中获取值

Question

我想从数据库中获取我的社交网络应用程序的评论并将其显示在回收器视图上，但评论应该为空的文本我不知道为什么。

数据库参考

PostsRef = FirebaseDatabase.getInstance().getReference().child("Posts").child(Post_Key).child("Comments");
protected void onStart() {
        super.onStart();
        FirebaseRecyclerAdapter<Comments, CommentsViewHolder> firebaseRecyclerAdapter
                = new FirebaseRecyclerAdapter<Comments, CommentsViewHolder>
                (
                        Comments.class,
                        R.layout.all_comments_layout,
                        CommentsViewHolder.class,
                        PostsRef
                )
        {
            @Override
            protected void populateViewHolder(CommentsViewHolder viewHolder, Comments model, int position)
            {
                viewHolder.setUsername(model.getUsername());
                viewHolder.setComment(model.getComment());
                viewHolder.setDate(model.getDate());
                viewHolder.setTime(model.getTime());
            }
        };
        CommentsList.setAdapter(firebaseRecyclerAdapter);
    }

我认为这就是问题所在

    public static class CommentsViewHolder extends RecyclerView.ViewHolder
    {
        View mView;
        public CommentsViewHolder(@NonNull View itemView)
        {
            super(itemView);
            mView = itemView;
        }
        public void setUsername(String username)
        {
            TextView myUserName = (TextView) mView.findViewById(R.id.comment_username);
            myUserName.setText("@" + username + "  ");
        }
        public void setComment(String comment)
        {
            TextView myComment = (TextView) mView.findViewById(R.id.comment_text);
            myComment.setText(" :" + comment);
        }
        public void setDate(String date)
        {
            TextView myDate = (TextView) mView.findViewById(R.id.comment_date);
            myDate.setText("  Date: " + date);
        }
        public void setTime(String time)
        {
            TextView myTime = (TextView) mView.findViewById(R.id.comment_time);
            myTime.setText("  Time: " + time);
        }
    }

这是我的静态类

public class Comments
{
    public String comment, date, time, username;
    public Comments()
    {
    }
    public Comments(String comment, String date, String time, String username) {
        this.comment = comment;
        this.date = date;
        this.time = time;
        this.username = username;
    }
    public String getComment() {
        return comment;
    }
    public void setComment(String comment) {
        this.comment = comment;
    }
    public String getDate() {
        return date;
    }
    public void setDate(String date) {
        this.date = date;
    }
    public String getTime() {
        return time;
    }
    public void setTime(String time) {
        this.time = time;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
}

任何人都有解决方案，或者可以告诉我我的错误在哪里？我对Java编程相对较新，所以是的。

Answer 1

我通过将注释重命名为注释来解决它，因为在数据库中它是注释，但我误读了它。