Untitled

    @Override
    protected void onResume() {
        super.onResume();
        handler = new Handler();
        authCheckRunnable = new Runnable() {
            @Override
            public void run() {
                checkAuthState();
                handler.postDelayed(this, 1000); // Check every 1 second
            }
        };
        handler.post(authCheckRunnable);
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (handler != null && authCheckRunnable != null) {
            handler.removeCallbacks(authCheckRunnable);
        }
        if (authStateListener != null) {
            firebaseAuth.removeAuthStateListener(authStateListener);
        }
    }

    private void checkAuthState() {
        authStateListener = firebaseAuth -> {
            if (firebaseAuth.getCurrentUser() != null) {
                firebaseAuth.getCurrentUser().reload();
                firebaseAuth.getCurrentUser().reauthenticate()
                if (firebaseAuth.getCurrentUser().isEmailVerified()) {
                    if (openMailDialog != null) openMailDialog.dismiss();
                    firebaseAuth.removeAuthStateListener(authStateListener);
                    startActivity(new Intent(RegisterActivity.this, MainActivity.class));
                    finish();
                }
            }
        };
        firebaseAuth.addAuthStateListener(authStateListener);
    }