CODEWITHSUNDEEP
androidfirebasefirebase-realtime-databaseandroid-recyclerview
7uthaifah
7uthaifah

Reputation: 345

Firebase show posts for following users

I am using FirebaseRecyclerAdapter and I am trying to show the post for following users only so I couldn't get the correct query for that the query that I need is at the pic describe:

enter image description here

I am currently using this method:

mDatabase= FirebaseDatabase.getInstance().getReference().child("Posts");

FirebaseRecyclerAdapter<Getting_Posts, PostViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Getting_Posts, PostViewHolder>(
            Getting_Posts.class, R.layout.post_card_design, PostViewHolder.class, mDatabase) {
        @Override
        protected void populateViewHolder(final PostViewHolder viewHolder, final Getting_Posts model, int position) {

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

        }
    };mPostList.setAdapter(firebaseRecyclerAdapter);
};

this method shows all post but I need to show post for following user

So I need the query that must I use it so please any help.

Upvotes: 1

Views: 1087

Answers (2)

Mr. Mad
Mr. Mad

Reputation: 1238

I also developed an app little bit similar to Instagram and used the conditions which you are looking for, So first of all fetch all your followings from firebase into an ArrayList.And than make conditions fetching posts as

if(followeinglist.contains(UID FROM POST)){mArrayListPost.add(YOUR POST);}

and find followings as 

 DatabaseReference userPostRef = mDatabase.child(KeyTAG.TAG_FOLLOWINGS).child(YOUR USER ID).orderByChild("userid");
    if (userPostRef == null) {
    } else {
        userPostRef.addValueEventListener(new ValueEventListener() {

            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                Iterable<DataSnapshot> children = dataSnapshot.getChildren();


                for (DataSnapshot child : children) {

                            followeinglist.add(child.getKey());
                                       }
                mAdapter1.notifyDataSetChanged();
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
    }

Upvotes: 0

Elvis Chidera
Elvis Chidera

Reputation: 201

Try this:

mDatabase= FirebaseDatabase.getInstance().getReference().child("Posts").orderByChild("UID").equalTo("UID TO SEARCH FOR");

FirebaseRecyclerAdapter<Getting_Posts, PostViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Getting_Posts, PostViewHolder>(
            Getting_Posts.class, R.layout.post_card_design, PostViewHolder.class, mDatabase)

Upvotes: 2

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