'How to display new item at the top position of the adapter?

How to display new data at the top position of an adapter? Here are the coding:-

Sorry just now, I wrongly copy the coding, now I just noticed. Sorry my bad. The issues now is I want to display the latest advertisement at the top of the adapter....

mDatabase.child("Advertisement").child(mAuth.getUid()).addValueEventListener(new ValueEventListener()
    {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot)
        {
            //iterating through all the values in database
            mChildrenList = new ArrayList<>();
            for (DataSnapshot postSnapshot : dataSnapshot.getChildren())
            {
                Advertisement advertisement = postSnapshot.getValue(Advertisement.class);
                mChildrenList.add(advertisement);
            }
            //Creating adapter
            mAdapter = new AdvertisementAdapter(getApplicationContext(), mChildrenList, "AddAds");

            //Adding adapter to recyclerview
            mRecyclerView.setAdapter(mAdapter);

            //mAdapter.notifyItemChanged(0);
        }

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

        }
    });
javaandroidandroid-studio


Solution 1:[1]

replace last else block with this

    TuitionPackage tuitionPackage = new TuitionPackage();
    tuitionPackage.setPrice(mPriceView.getText().toString());
    tuitionPackageList.add(tuitionPackage);
    mPackageAdapter.notifyDataSetChanged();

Solution 2:[2]

Here are my answer with the help from the above coding to sort the first ads at the top position:-

//Iterating through all the values in database
            mChildrenList = new ArrayList<>();
            for (DataSnapshot postSnapshot : dataSnapshot.getChildren())
            {
                Advertisement advertisement = postSnapshot.getValue(Advertisement.class);
                mChildrenList.add(0, advertisement);
            }

            //Creating adapter
            mAdapter = new AdvertisementAdapter(getApplicationContext(), mChildrenList, "AddAds");

            //Adding adapter to recyclerview
            mRecyclerView.setAdapter(mAdapter);
            mAdapter.notifyItemInserted(0);

Sources

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Source: Stack Overflow

Solution Source
Solution 1 touhid udoy
Solution 2 Daisy

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