我想更新所有帖子中的用户个人资料图片以及他在用户更新/更改他的个人资料图片时发布的图片

穆罕默德阿里

在这里输入图片描述在此处输入图片说明我正在更新用户个人资料图片,它在我想要的所有活动中都能完美运行。但问题是它不会更新用户已发布的所有帖子中的用户个人资料图片。我也想在那里更新用户的个人资料图片。

这是数据库参考

postRef= FirebaseDatabase.getInstance().getReference().child("posts");

这是我的回收站视图设置

FirebaseRecyclerOptions<Posts> options=new FirebaseRecyclerOptions.Builder<Posts>()
            .setQuery(postRef,Posts.class)
            .build();

    FirebaseRecyclerAdapter<Posts,PostsViewHolder> firebaseRecyclerAdapter=new FirebaseRecyclerAdapter<Posts, PostsViewHolder>(options)
    {
        @Override
        protected void onBindViewHolder(@NonNull final PostsViewHolder holder, int position, @NonNull final Posts model) {

            final String postKey=getRef(position).getKey();

            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent clickPostIntent=new Intent(MainActivity.this, ClickPostActivity.class);
                    clickPostIntent.putExtra("postKey",postKey);
                    startActivity(clickPostIntent);
                }
            });

            holder.username.setText(model.getFullname());
            holder.date.setText(model.getDate());
            holder.time.setText(model.getTime());

            if (model.getPost_uri_link()!=null){
                holder.post_link.setText(model.getPost_uri_link());
            }
            else {
                holder.post_link.setVisibility(View.GONE);
            }
            if (model.getPost_file_name()!=null && model.getPost_file_uri()!=null) {
                holder.file_attach_name.setText(model.getPost_file_name());
                holder.file_attach_name.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        downloadFile(MainActivity.this,model.getPost_file_name(),"gs://studentcornerproject-be4c6.appspot.com/post files",model.getPost_file_uri());
                    }
                });
            }
            else{
                holder.file_attach_name.setVisibility(View.GONE);
            }

            if (model.getDescription()!=null) {
                holder.description.setText(model.getDescription());
           }
            else {
                holder.description.setVisibility(View.GONE);
            }

            if (model.getPost_img()!=null) {
                Picasso.get().load(model.post_img).networkPolicy(NetworkPolicy.OFFLINE).placeholder(android.R.drawable.progress_indeterminate_horizontal).into(holder.post_img, new Callback() {
                    @Override
                    public void onSuccess() {

                        postRef.child("post_img").keepSynced(true);
                    }

                    @Override
                    public void onError(Exception e) {

                        Picasso.get().load(model.post_img).into(holder.post_img);
                    }
                });
            }
            else {
                holder.post_img.setVisibility(View.GONE);
            }
            Picasso.get().load(model.getProfile_image()).networkPolicy(NetworkPolicy.OFFLINE).placeholder(R.drawable.profile_icon).into(holder.prof_img, new Callback() {
                @Override
                public void onSuccess() {

                }

                @Override
                public void onError(Exception e) {

                    Picasso.get().load(model.getProfile_image()).into(holder.prof_img);
                }
            });
        }

        @NonNull
        @Override
        public PostsViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

            View view= LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.all_posts_users,viewGroup,false);
            PostsViewHolder viewHolder=new PostsViewHolder(view);
            return viewHolder;

        }
    };
    postslist.setAdapter(firebaseRecyclerAdapter);
    firebaseRecyclerAdapter.startListening();
}

public static class PostsViewHolder extends RecyclerView.ViewHolder
{

   TextView username,date,time,description,file_attach_name,post_link;
    CircleImageView prof_img;
    ImageView post_img;

    public PostsViewHolder(@NonNull View itemView) {
        super(itemView);
        post_link=itemView.findViewById(R.id.post_link);
        username=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);
        file_attach_name=itemView.findViewById(R.id.post_filename);
        prof_img=itemView.findViewById(R.id.post_profile_img);
        post_img=itemView.findViewById(R.id.post_image);


    }

我也想更新他已经发布的所有帖子中的个人资料图片。

穆罕默德阿里

我的问题已经解决了。这是正确的代码。

 Query postQuery=postRef.orderByChild("uid").equalTo(currentUserId);
        postQuery.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                for (DataSnapshot snapshot:dataSnapshot.getChildren()){
                    Log.i("Post",snapshot.getKey());
                    postRef.child(snapshot.getKey()).child("profile_image").setValue(profile_img);
                    postRef.child(snapshot.getKey()).child("fullname").setValue(fullname);




                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {

            }
        });

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