public class Tab_0 extends Fragment {
RecyclerView mRecyclerView;
    FirebaseDatabase mFirebaseDataBase;
    DatabaseRe`enter code here`ference mRef;
    DatabaseReference mRefA;

    @SuppressLint("RestrictedApi")
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState){

        View view = inflater.inflate(R.layout.tab0,container,false);

        mRecyclerView = view.findViewById(R.id.recyclerview);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
    mRecyclerView.setHasFixedSize(true);

    mFirebaseDataBase = FirebaseDatabase.getInstance();
    mRef = FirebaseDatabase.getInstance().getReferenceFromUrl("https://snapcodes-c6450.firebaseio.com");
    mRef = mRef.child("pictures");

    FirebaseRecyclerAdapter<model,ViewHolder> FirebaseRecyclerAdapter = new FirebaseRecyclerAdapter<model,ViewHolder>(
                    model.class,
                    R.layout.card,
                    ViewHolder.class,
                    mRef
            ){
                @Override
                protected void populateViewHolder(ViewHolder viewHolder,model model,int position){
                    viewHolder.setDetails( getContext() , model.getImage());
                }
            };
    mRecyclerView.setAdapter(FirebaseRecyclerAdapter);

    return inflater.inflate(R.layout.tab0,container,false);
}