llsajjad
43 lines
1.1 KiB
Dart
43 lines
1.1 KiB
Dart
// lib/view_models/login_view_model.dart
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import 'package:flutter/material.dart';
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class LoginViewModel with ChangeNotifier {
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final TextEditingController usernameController = TextEditingController();
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final TextEditingController passwordController = TextEditingController();
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final FocusNode usernameFocus = FocusNode();
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final FocusNode passwordFocus = FocusNode();
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bool _obscurePassword = true;
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LoginViewModel() {
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usernameController.addListener(_onTextChanged);
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passwordController.addListener(_onTextChanged);
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usernameFocus.addListener(_onTextChanged);
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passwordFocus.addListener(_onTextChanged);
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}
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bool get obscurePassword => _obscurePassword;
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bool get isLoginEnabled =>
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usernameController.text.isNotEmpty &&
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passwordController.text.isNotEmpty;
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void togglePasswordVisibility() {
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_obscurePassword = !_obscurePassword;
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notifyListeners();
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}
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void _onTextChanged() {
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notifyListeners();
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}
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@override
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void dispose() {
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usernameController.dispose();
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passwordController.dispose();
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usernameFocus.dispose();
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passwordFocus.dispose();
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super.dispose();
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}
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}
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