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manikantag/getx-async-assingment-issue.dart

Last active September 24, 2021 17:19
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Revisions

  1. manikantag renamed this gist Sep 24, 2021. 1 changed file with 0 additions and 0 deletions.
    0 other variant → other_variant.dart
    View file
    File renamed without changes.
  2. manikantag revised this gist Sep 24, 2021. 1 changed file with 222 additions and 0 deletions.
    222 changes: 222 additions & 0 deletions other variant
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,222 @@
    import 'package:flutter/material.dart';
    import 'package:flutter/services.dart';
    import 'package:get/get.dart';

    void main() async {
    WidgetsFlutterBinding.ensureInitialized();

    runApp(GetMaterialApp.router(
    title: 'Test',
    initialBinding: BindingsBuilder.put(() => _AuthService(), permanent: true),
    getPages: [
    GetPage(
    name: '/',
    page: () => const _LoginScreen(),
    binding: BindingsBuilder.put(() => _LoginController()),
    ),
    GetPage(
    name: '/teacher',
    page: () => const _TeacherHomeScreen(),
    binding: BindingsBuilder.put(() => _TeacherHomeController()),
    ),
    GetPage(
    name: '/student',
    page: () => const _StudentHomeScreen(),
    binding: BindingsBuilder.put(() => _StudentHomeController()),
    ),
    ],
    ));

    // Set overlay style status bar. It must run after MyApp(), because MaterialApp may override it.
    SystemUiOverlayStyle systemUiOverlayStyle = const SystemUiOverlayStyle(
    statusBarColor: Colors.transparent, systemNavigationBarColor: Colors.white);
    SystemChrome.setSystemUIOverlayStyle(systemUiOverlayStyle);
    }

    // ----- Auth service -----
    class _AuthService extends GetxController {
    // Rx<bool> isAuthenticated = false.obs;
    Rx<_AppUser> currentUser = Rx(_AppUser.dummy());

    void doTeacherLogin() async {
    // isAuthenticated.value = true;
    currentUser = await Future.delayed(
    const Duration(milliseconds: 200),
    () => _Teacher.newTeacher('Teacher 1', 'Teacher 1 mobile').obs,
    );
    /* currentUser.value = await Future.delayed(
    const Duration(milliseconds: 10),
    () => Teacher.newTeacher('Teacher 1', 'Teacher 1 mobile'),
    ); */
    // ignore: avoid_print
    print(currentUser);
    Get.rootDelegate.offNamed('/teacher');
    }

    void doStudentLogin() async {
    // isAuthenticated.value = true;
    currentUser = await Future.delayed(
    const Duration(milliseconds: 200),
    () => _Student.newStudent('Student 1', 'Student 1 mobile').obs,
    );

    /* currentUser.value = await Future.delayed(
    const Duration(milliseconds: 10),
    () => _Student.newStudent('Student 1', 'Student 1 mobile'),
    ); */
    // ignore: avoid_print
    print(currentUser);
    Get.rootDelegate.offNamed('/student');
    }

    void doLogout() {
    // isAuthenticated.value = false;
    // currentUser(_AppUser.dummy());
    currentUser = _AppUser.dummy().obs;
    // Get.reset();
    // Get.reloadAll(force: true);
    // Get.reload<AuthService>();
    // Get.deleteAll(force: true);
    Get.rootDelegate.offNamed('/');
    }
    }

    // ----- Login controller & page -----
    class _LoginController extends GetxController {
    final authService = Get.find<_AuthService>();

    // bool isLoggedin() => authService.isAuthenticated.value;
    }

    class _LoginScreen extends GetView<_LoginController> {
    const _LoginScreen({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
    return Scaffold(
    body: Center(
    child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: [
    // Obx(() =>
    // controller.isLoggedin() ? const Text('Logged in') : const Text('Not logged in')),
    // Obx(() => Text('currentUser: ${controller.authService.currentUser.value}')),
    ElevatedButton(
    onPressed: controller.authService.doTeacherLogin,
    child: const Text('Teacher Login'),
    ),
    ElevatedButton(
    onPressed: controller.authService.doStudentLogin,
    child: const Text('Student Login'),
    ),
    /* ElevatedButton(
    onPressed: controller.authService.doLogout,
    child: const Text('Logout'),
    ), */
    ],
    ),
    ),
    );
    }
    }

    class _TeacherHomeController extends GetxController {
    final authService = Get.find<_AuthService>();
    final Rx<_Teacher> currentUser = (Get.find<_AuthService>().currentUser.value as _Teacher).obs;
    }

    class _TeacherHomeScreen extends GetView<_TeacherHomeController> {
    const _TeacherHomeScreen({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
    return Scaffold(
    appBar: AppBar(
    title: const Text('Welcom, Teacher'),
    ),
    body: Container(
    color: Colors.lightGreen.shade200,
    child: Center(
    child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: [
    Obx(() => Text('currentUser: ${controller.currentUser.value}')),
    ElevatedButton(
    onPressed: controller.authService.doLogout,
    child: const Text('Logout'),
    ),
    ],
    ),
    ),
    ),
    );
    }
    }

    class _StudentHomeController extends GetxController {
    final authService = Get.find<_AuthService>();
    final Rx<_Student> currentUser = (Get.find<_AuthService>().currentUser.value as _Student).obs;
    }

    class _StudentHomeScreen extends GetView<_StudentHomeController> {
    const _StudentHomeScreen({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
    return Scaffold(
    appBar: AppBar(
    title: const Text('Welcom, Student'),
    ),
    body: Container(
    color: Colors.lightBlue.shade200,
    child: Center(
    child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: [
    Obx(() => Text('currentUser: ${controller.currentUser.value}')),
    ElevatedButton(
    onPressed: controller.authService.doLogout,
    child: const Text('Logout'),
    ),
    ],
    ),
    ),
    ),
    );
    }
    }

    // ----- models -----
    class _AppUser {
    final String uid;
    final String mobile;

    int count = 0;

    _AppUser({required this.uid, required this.mobile});

    _AppUser.dummy() : this(uid: 'dummy', mobile: '');

    @override
    String toString() {
    return {'mobile': mobile, 'uid': uid, 'counter': count}.toString();
    }
    }

    class _Teacher extends _AppUser {
    final String? regId;

    _Teacher({required String uid, required String mobile, this.regId})
    : super(uid: uid, mobile: mobile);

    _Teacher.newTeacher(String uid, String mobile) : this(mobile: mobile, uid: uid);
    }

    class _Student extends _AppUser {
    final String? marks;

    _Student({required String uid, required String mobile, this.marks})
    : super(uid: uid, mobile: mobile);

    _Student.newStudent(String uid, String mobile) : this(uid: uid, mobile: mobile);
    }
  3. manikantag renamed this gist Sep 16, 2021. 1 changed file with 0 additions and 0 deletions.
    0 getx-async-assingment-bug.dart → getx-async-assingment-issue.dart
    View file
    File renamed without changes.
  4. manikantag revised this gist Sep 16, 2021. 1 changed file with 25 additions and 26 deletions.
    51 changes: 25 additions & 26 deletions getx-async-assingment-bug.dart
    View file
    Original file line number Diff line number Diff line change
    @@ -22,6 +22,7 @@ void main() async {
    ));
    }

    // ----- models -----
    class AppUser {
    final String uid;
    final String mobile;
    @@ -39,23 +40,22 @@ class AppUser {
    }
    }

    // ----- models -----
    class Doctor extends AppUser {
    class Teacher extends AppUser {
    final String? regId;

    Doctor({required String uid, required String mobile, this.regId})
    Teacher({required String uid, required String mobile, this.regId})
    : super(uid: uid, mobile: mobile);

    Doctor.newDoctor(String uid, String mobile) : this(mobile: mobile, uid: uid);
    Teacher.newTeacher(String uid, String mobile) : this(mobile: mobile, uid: uid);
    }

    class Patient extends AppUser {
    final String? bmi;
    class Student extends AppUser {
    final String? marks;

    Patient({required String uid, required String mobile, this.bmi})
    Student({required String uid, required String mobile, this.marks})
    : super(uid: uid, mobile: mobile);

    Patient.newPatient(String uid, String mobile) : this(uid: uid, mobile: mobile);
    Student.newStudent(String uid, String mobile) : this(uid: uid, mobile: mobile);
    }

    // ----- Auth service -----
    @@ -66,35 +66,34 @@ class AuthService extends GetxController {

    /* @override
    void onInit() {
    currentUser = Patient.newPatient('patient1', 'patientm1').toRx();
    currentUser = Student.newStudent('Student 1', 'Student 1 mobile').obs; // This is working
    super.onInit();
    } */

    void doPatientLogin() async {
    void doStudentLogin() async {
    isAuthenticated.value = true;
    // currentUser = Patient.newPatient('Patient_1', 'Patient_mobile_1').toRx();
    // currentUser = Student.newStudent('Student 1', 'Student 1 mobile').obs; // This is working
    currentUser = await Future.delayed(
    const Duration(milliseconds: 10),
    () => Patient.newPatient('Patient_1', 'Patient_mobile_1').obs,
    () => Student.newStudent('Student 1', 'Student 1 mobile').obs, // This is NOT working
    );
    print(currentUser);
    }

    void doDoctorLogin() async {
    void doTeacherLogin() async {
    isAuthenticated.value = true;
    // currentUser = Doctor.newDoctor('Doc_1', 'Doc_mobile_1').toRx();
    // currentUser = Teacher.newTeacher('Teacher 1', 'Teacher 1 mobile').obs; // This is working
    currentUser = await Future.delayed(
    const Duration(milliseconds: 10),
    () => Doctor.newDoctor('Doc_1', 'Doc_mobile_1').obs,
    () => Teacher.newTeacher('Teacher 1', 'Teacher 1 mobile').obs, // This is NOT working
    );
    print(currentUser);
    }

    void doLogout() {
    isAuthenticated.value = false;
    authCounter = 0.obs;
    // tempCounter = Patient.newPatient('p2', 'm2').toRx();
    // currentUser = Doctor.newDoctor('doctor1', 'docm1').toRx();
    // currentUser = Teacher.newTeacher('Teacher 1', 'Teacher 1 mobile').obs; // This is working
    Get.rootDelegate.offNamed('/');
    // Get.reset();
    // Get.reloadAll(force: true);
    @@ -109,13 +108,13 @@ class LoginController extends GetxController {

    bool isLoggedin() => authService.isAuthenticated.value == true;

    void doDoctorLogin() {
    authService.doDoctorLogin();
    void doTeacherLogin() {
    authService.doTeacherLogin();
    Get.rootDelegate.offNamed('/home');
    }

    void doPatientLogin() {
    authService.doPatientLogin();
    void doStudentLogin() {
    authService.doStudentLogin();
    Get.rootDelegate.offNamed('/home');
    }
    }
    @@ -135,12 +134,12 @@ class LoginScreen extends GetView<LoginController> {
    children: [
    Text('authCounter: ${controller.authService.authCounter.value}'),
    ElevatedButton(
    onPressed: controller.doDoctorLogin,
    child: const Text('Doctor Login'),
    onPressed: controller.doTeacherLogin,
    child: const Text('Teacher Login'),
    ),
    ElevatedButton(
    onPressed: controller.doPatientLogin,
    child: const Text('Patient Login'),
    onPressed: controller.doStudentLogin,
    child: const Text('Student Login'),
    ),
    ],
    ),
    @@ -188,7 +187,7 @@ class HomeScreen extends GetView<HomeController> {
    Text('Auth counter: ${controller.authCounter.value}'),
    Text('Home counter: ${controller.homeCounter.value}'),
    Text(
    'Current User: ${controller.currentUser.value is Doctor ? 'Doctor' : 'Patient'}'),
    'Current User: ${controller.currentUser.value is Teacher ? 'Teacher' : 'Student'}'),
    Text('Current User: ${controller.currentUser.value}'),
    ElevatedButton(
    onPressed: controller.increment,
  5. manikantag created this gist Sep 16, 2021.
    207 changes: 207 additions & 0 deletions getx-async-assingment-bug.dart
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,207 @@
    import 'package:flutter/material.dart';
    import 'package:get/get.dart';

    void main() async {
    WidgetsFlutterBinding.ensureInitialized();

    runApp(GetMaterialApp.router(
    title: 'Test',
    initialBinding: BindingsBuilder.put(() => AuthService(), permanent: true),
    getPages: [
    GetPage(
    name: '/',
    page: () => const LoginScreen(),
    binding: BindingsBuilder.put(() => LoginController()),
    ),
    GetPage(
    name: '/home',
    page: () => const HomeScreen(),
    binding: BindingsBuilder.put(() => HomeController()),
    ),
    ],
    ));
    }

    class AppUser {
    final String uid;
    final String mobile;

    int count = 0;

    AppUser({required this.uid, required this.mobile});

    AppUser.newUser(String uid, String mobile) : this(uid: uid, mobile: mobile);
    AppUser.dummyUser() : this(uid: '', mobile: '');

    @override
    String toString() {
    return {'mobile': mobile, 'uid': uid, 'counter': count}.toString();
    }
    }

    // ----- models -----
    class Doctor extends AppUser {
    final String? regId;

    Doctor({required String uid, required String mobile, this.regId})
    : super(uid: uid, mobile: mobile);

    Doctor.newDoctor(String uid, String mobile) : this(mobile: mobile, uid: uid);
    }

    class Patient extends AppUser {
    final String? bmi;

    Patient({required String uid, required String mobile, this.bmi})
    : super(uid: uid, mobile: mobile);

    Patient.newPatient(String uid, String mobile) : this(uid: uid, mobile: mobile);
    }

    // ----- Auth service -----
    class AuthService extends GetxController {
    Rx<bool> isAuthenticated = false.obs;
    Rx<int> authCounter = 0.obs;
    Rx<AppUser> currentUser = Rx(AppUser.dummyUser());

    /* @override
    void onInit() {
    currentUser = Patient.newPatient('patient1', 'patientm1').toRx();
    super.onInit();
    } */

    void doPatientLogin() async {
    isAuthenticated.value = true;
    // currentUser = Patient.newPatient('Patient_1', 'Patient_mobile_1').toRx();
    currentUser = await Future.delayed(
    const Duration(milliseconds: 10),
    () => Patient.newPatient('Patient_1', 'Patient_mobile_1').obs,
    );
    print(currentUser);
    }

    void doDoctorLogin() async {
    isAuthenticated.value = true;
    // currentUser = Doctor.newDoctor('Doc_1', 'Doc_mobile_1').toRx();
    currentUser = await Future.delayed(
    const Duration(milliseconds: 10),
    () => Doctor.newDoctor('Doc_1', 'Doc_mobile_1').obs,
    );
    print(currentUser);
    }

    void doLogout() {
    isAuthenticated.value = false;
    authCounter = 0.obs;
    // tempCounter = Patient.newPatient('p2', 'm2').toRx();
    // currentUser = Doctor.newDoctor('doctor1', 'docm1').toRx();
    Get.rootDelegate.offNamed('/');
    // Get.reset();
    // Get.reloadAll(force: true);
    // Get.reload<AuthService>();
    // Get.deleteAll(force: true);
    }
    }

    // ----- Login controller & page -----
    class LoginController extends GetxController {
    final authService = Get.find<AuthService>();

    bool isLoggedin() => authService.isAuthenticated.value == true;

    void doDoctorLogin() {
    authService.doDoctorLogin();
    Get.rootDelegate.offNamed('/home');
    }

    void doPatientLogin() {
    authService.doPatientLogin();
    Get.rootDelegate.offNamed('/home');
    }
    }

    class LoginScreen extends GetView<LoginController> {
    const LoginScreen({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
    return Scaffold(
    body: Center(
    child: Obx(
    () => controller.isLoggedin()
    ? const Text('Already logged in -> Logout (state not cleared)')
    : Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: [
    Text('authCounter: ${controller.authService.authCounter.value}'),
    ElevatedButton(
    onPressed: controller.doDoctorLogin,
    child: const Text('Doctor Login'),
    ),
    ElevatedButton(
    onPressed: controller.doPatientLogin,
    child: const Text('Patient Login'),
    ),
    ],
    ),
    ),
    ),
    );
    }
    }

    // ----- Home controller & page -----
    class HomeController extends GetxController {
    final AuthService _authService = Get.find<AuthService>();

    final Rx<int> homeCounter = 0.obs;
    late final Rx<int> authCounter;
    late final Rx<AppUser> currentUser;

    @override
    void onInit() {
    authCounter = _authService.authCounter;
    currentUser = _authService.currentUser;
    super.onInit();
    }

    void increment() {
    homeCounter.value++;
    authCounter.value++;
    currentUser.value.count++;
    }

    void logout() => _authService.doLogout();
    }

    class HomeScreen extends GetView<HomeController> {
    const HomeScreen({Key? key}) : super(key: key);

    @override
    Widget build(BuildContext context) {
    return Scaffold(
    body: Obx(
    () => Center(
    child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: [
    Text('Auth counter: ${controller.authCounter.value}'),
    Text('Home counter: ${controller.homeCounter.value}'),
    Text(
    'Current User: ${controller.currentUser.value is Doctor ? 'Doctor' : 'Patient'}'),
    Text('Current User: ${controller.currentUser.value}'),
    ElevatedButton(
    onPressed: controller.increment,
    child: const Text('Increment counters'),
    ),
    ElevatedButton(
    onPressed: controller.logout,
    child: const Text('Logout'),
    ),
    ],
    ),
    ),
    ),
    );
    }
    }