How to refresh recyclerview after change the data through click button?

Question

For the first time I want to change my value of the data in a recycler view holder, it is works, but once I click to change the value again in the same recycler view holder, it can't works and it still retrieve the old data. I tried the method like adapter.notifyDataSetChanged() but it seems like not work.

public class Admin_admittutorpage extends AppCompatActivity implements myadapter_tutorlist.OnNoteListener {

    //private static final String TAG = "Sometry" ;
    RecyclerView recview;
    myadapter_tutorlist adapter;

    public static ArrayList<User> allUser =new ArrayList<>();
    AlertDialog.Builder builder;

    DatabaseReference mroot ;
    private FirebaseAuth mFirebaseAuth;

    public void addUserInfo(User muser){
        allUser.add(muser);

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_admin_admittutorpage);

        recview = (RecyclerView)findViewById(R.id.admin_tutor_recyclerview);
        recview.setLayoutManager(new LinearLayoutManager(this));

        FirebaseRecyclerOptions<User> options = new FirebaseRecyclerOptions.Builder<User>()
            .setQuery(FirebaseDatabase.getInstance().getReference().child("Users").orderByChild("role").equalTo("Tutor"),
            User.class).build();

        adapter = new myadapter_tutorlist(options, this);

        recview.setAdapter(adapter);

    }

    @Override
    protected void onStart(){
        super.onStart();
        adapter.startListening();
    }

    @Override
    protected void onStop(){
        super.onStop();
        adapter.stopListening();
    }

    @Override
    public void onNoteClick(final int position) {
        //Log.d(TAG, "trytry" + allUser.get(position).getUsername());
        builder = new AlertDialog.Builder(this);
        builder.setMessage(R.string.dialog_message).setTitle(R.string.dialog_title);
        builder.setMessage("Do you want to delete or activate tutor account ?")
                .setCancelable(false)
                .setPositiveButton("Unactivate", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        //  Action for 'NO' Button dialog.cancel();
                        Toast.makeText(getApplicationContext(), "you choose to unactivate tutor account", Toast.LENGTH_SHORT).show();
                        final String selectedEmail = allUser.get(position).getEmail();

                        DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();
                        DatabaseReference usersRef = rootRef.child("Users");
                        ValueEventListener eventListener = new ValueEventListener() {
                            @Override
                            public void onDataChange(@NonNull DataSnapshot snapshot) {
                                for (DataSnapshot ds : snapshot.getChildren()) {
                                    String myemail = ds.child("email").getValue().toString();
                                    if(selectedEmail.equals(myemail)){
                                        if(allUser.get(position).getActive().equals(true)) {
                                            ds.getRef().child("active").setValue(false);
                                        }
                                        }
                                    }
                                }
                            }
                            @Override
                            public void onCancelled(@NonNull DatabaseError error) {

                            }
                        };
                        usersRef.addListenerForSingleValueEvent(eventListener);
                    }
                })
                .setNeutralButton("Delete", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        Toast.makeText(getApplicationContext(), "you choose to delete tutor account", Toast.LENGTH_SHORT).show();
                    }
                })
                .setNegativeButton("Activate", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        //  Action for 'YES' Button
                        Toast.makeText(getApplicationContext(), "you choose to activate tutor account", Toast.LENGTH_SHORT).show();
                        if (allUser.get(position).getActive().equals(true)) {
                            Toast.makeText(getApplicationContext(), "The tutor account is already in active status", Toast.LENGTH_SHORT).show();
                        } else {
                            final String selectedEmail = allUser.get(position).getEmail();

                            DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();
                            DatabaseReference usersdRef = rootRef.child("Users");
                            ValueEventListener eventListener = new ValueEventListener() {
                                @Override
                                public void onDataChange(DataSnapshot dataSnapshot) {
                                    for (DataSnapshot ds : dataSnapshot.getChildren()) {
                                        String myemail = ds.child("email").getValue().toString();
                                       
                                        if (selectedEmail.equals(myemail)) {
                                            if (allUser.get(position).getActive().equals(false)) {
                                                ds.getRef().child("active").setValue(true);
                                            } 
                                        }
                                    }
                                }

                                @Override
                                public void onCancelled(DatabaseError databaseError) {

                                }
                            };
                            usersdRef.addListenerForSingleValueEvent(eventListener);
                        }
                    }
                });
        //Creating dialog box
        AlertDialog alert = builder.create();
        //Setting the title manually
        alert.setTitle("Account Activation Alert");
        alert.show();
    }

}