Retrieve posts from firebase database using a field within the child

Question

I am developing a social media app

In the Firebase database, There will be Users node,posts node,likes node and request type nodes

Users nodes contains fields which represents users details and it has a uid which is like a key

Under the posts node, there will be a postskey within it there will be the details of the posts like uid,profileimage,postimage, description,date,time,fullname The uid in the posts node is the uid in the Users node

I successfully uploaded images into the firebase storage and its url would be in the postimage field within the child node

To retrieve the particular users posts and display it in the particular users profile I tried this code which I enclosed in the images

But the posts of the user doesn't shows and white blank activity only shows up

Can u guide me to achieve my expected result I am not good in English Sorry,if you cannot understand my question because of my poor English

within OnCreate ,

mAuth=FirebaseAuth.getInstance();
currentUserID=mAuth.getCurrentUser().getUid();
PostsRef=FirebaseDatabase.getInstance().getReference().child("Posts");
myPostsList=(RecyclerView)findViewById(R.id.my_all_posts_list);
myPostsList.setHasFixedSize(true);
LinearLayoutManager linearLayoutManager=new LinearLayoutManager(this);
linearLayoutManager.setReverseLayout(true);
linearLayoutManager.setStackFromEnd(true);
myPostsList.setLayoutManager(linearLayoutManager);
DisplayMyAllPosts();

within Displaymyallposts method

private void DisplayMyAllPosts() {
    Query myPostsQuery=PostsRef.orderByChild("uid").startAt(currentUserID).endAt(currentUserID+"\uf8ff");
    FirebaseRecyclerOptions<Posts> options=new FirebaseRecyclerOptions.Builder<Posts>().setQuery(myPostsQuery,Posts.class).build();
    FirebaseRecyclerAdapter<Posts,MyPostsViewHolder> firebaseRecyclerAdapter=new FirebaseRecyclerAdapter<Posts, MyPostsViewHolder>(options) {
        @Override
        protected void onBindViewHolder(@NonNull MyPostsViewHolder holder, int position, @NonNull Posts model) {
            holder.fullname.setText(model.getFullname());
            holder.date.setText(model.getDate());
            holder.time.setText(model.getTime());
            holder.description.setText(model.getDescription());
            Picasso.get().load(model.getProfileimage()).into(holder.profileimage);
            Picasso.get().load(model.getPostimage()).into(holder.postImage);
        }

        @NonNull
        @Override
        public MyPostsViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.all_posts_layout,viewGroup,false);
            MyPostsViewHolder viewHolder=new MyPostsViewHolder(view);
            return viewHolder;
        }
    };
   myPostsList.setAdapter(firebaseRecyclerAdapter);
}

public static class MyPostsViewHolder extends RecyclerView.ViewHolder{
    TextView fullname,date,time,description;
    CircleImageView profileimage;
    ImageView postImage;
    public MyPostsViewHolder(@NonNull View itemView) {
        super(itemView);

        fullname=itemView.findViewById(R.id.post_user_name);
        date=itemView.findViewById(R.id.post_date);
        time=itemView.findViewById(R.id.post_time);
        description=itemView.findViewById(R.id.post_description);
        profileimage=itemView.findViewById(R.id.post_profile_image);
        postImage=itemView.findViewById(R.id.post_image);
    }
}

I have created a separate module class called as. Posts.java which is initialised with getters and setters to get and set the database values — Dinesh

Dinesh Dinesh · Accepted Answer · 2019-03-08T07:14:17

The post is retrieved it's because of my silly mistakes I forgot to give startlistening That's the reason for not been able to retrieve the post But there is an another problem Except the image all other fields are displaying But not the image The image is still blank

Retrieve posts from firebase database using a field within the child

1 Answers