379 lines
11 KiB
Dart
379 lines
11 KiB
Dart
import 'package:auto_route/auto_route.dart';
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import 'package:flutter/material.dart';
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import 'dart:math' as math;
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import '../../../../common/extension/extension.dart';
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import '../../../../common/theme/theme.dart';
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import '../../../components/button/button.dart';
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import '../../../components/spacer/spacer.dart';
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import '../../../router/app_router.gr.dart';
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import 'widgets/email_field.dart';
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import 'widgets/password_field.dart';
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@RoutePage()
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class LoginPage extends StatefulWidget {
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const LoginPage({super.key});
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@override
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State<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> with TickerProviderStateMixin {
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final _formKey = GlobalKey<FormState>();
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final _emailController = TextEditingController();
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final _passwordController = TextEditingController();
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bool _isLoading = false;
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late AnimationController _fadeController;
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late AnimationController _slideController;
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late AnimationController _backgroundController;
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late AnimationController _floatingController;
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late Animation<double> _fadeAnimation;
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late Animation<Offset> _slideAnimation;
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late Animation<double> _backgroundAnimation;
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late Animation<double> _floatingAnimation;
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@override
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void initState() {
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super.initState();
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_fadeController = AnimationController(
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duration: const Duration(milliseconds: 1500),
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vsync: this,
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);
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_slideController = AnimationController(
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duration: const Duration(milliseconds: 1200),
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vsync: this,
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);
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_backgroundController = AnimationController(
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duration: const Duration(seconds: 10),
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vsync: this,
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)..repeat();
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_floatingController = AnimationController(
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duration: const Duration(seconds: 6),
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vsync: this,
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)..repeat(reverse: true);
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_fadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
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CurvedAnimation(parent: _fadeController, curve: Curves.easeInOut),
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);
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_slideAnimation =
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Tween<Offset>(begin: const Offset(0, 0.3), end: Offset.zero).animate(
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CurvedAnimation(parent: _slideController, curve: Curves.easeOutCubic),
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);
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_backgroundAnimation = Tween<double>(
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begin: 0.0,
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end: 2 * math.pi,
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).animate(_backgroundController);
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_floatingAnimation = Tween<double>(begin: -20.0, end: 20.0).animate(
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CurvedAnimation(parent: _floatingController, curve: Curves.easeInOut),
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);
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_emailController.text = 'test@example.com';
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_passwordController.text = 'password';
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_fadeController.forward();
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_slideController.forward();
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}
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@override
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void dispose() {
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_fadeController.dispose();
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_slideController.dispose();
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_backgroundController.dispose();
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_floatingController.dispose();
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_emailController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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Future<void> _handleLogin() async {
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if (_formKey.currentState!.validate()) {
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setState(() {
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_isLoading = true;
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});
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// Simulasi proses login
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await Future.delayed(const Duration(seconds: 2));
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setState(() {
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_isLoading = false;
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});
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context.router.replace(const MainRoute());
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: AnimatedBuilder(
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animation: Listenable.merge([
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_backgroundController,
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_floatingController,
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]),
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builder: (context, child) {
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return Container(
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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colors: AppColor.primaryGradient,
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),
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),
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child: Stack(
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children: [
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// Animated background elements
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_buildAnimatedBackground(),
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// Main content
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SafeArea(
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child: Center(
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child: SingleChildScrollView(
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padding: EdgeInsets.symmetric(
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horizontal: AppValue.padding,
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),
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child: FadeTransition(
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opacity: _fadeAnimation,
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child: SlideTransition(
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position: _slideAnimation,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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_buildLogo(context),
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SpaceHeight(48),
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_buildLoginCard(context),
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],
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),
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),
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),
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),
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),
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),
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],
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),
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);
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},
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),
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);
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}
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Widget _buildAnimatedBackground() {
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return Stack(
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children: [
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// Floating circles
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...List.generate(6, (index) {
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final double size = 80 + (index * 40);
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final double left =
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(index * 60.0) % MediaQuery.of(context).size.width;
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final double top =
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(index * 120.0) % MediaQuery.of(context).size.height;
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return Positioned(
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left: left + math.sin(_backgroundAnimation.value + index) * 30,
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top: top + _floatingAnimation.value + (index * 10),
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child: Container(
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width: size,
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height: size,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white.withOpacity(0.1),
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border: Border.all(
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color: Colors.white.withOpacity(0.2),
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width: 2,
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),
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),
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),
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);
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}),
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// Rotating geometric shapes
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Positioned(
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top: 100,
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right: 50,
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child: Transform.rotate(
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angle: _backgroundAnimation.value,
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child: Container(
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width: 60,
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height: 60,
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.08),
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borderRadius: BorderRadius.circular(12),
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border: Border.all(
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color: Colors.white.withOpacity(0.15),
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width: 1,
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),
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),
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),
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),
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),
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Positioned(
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bottom: 150,
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left: 30,
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child: Transform.rotate(
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angle: -_backgroundAnimation.value * 0.5,
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child: Container(
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width: 80,
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height: 80,
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.06),
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shape: BoxShape.circle,
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border: Border.all(
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color: Colors.white.withOpacity(0.12),
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width: 1,
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),
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),
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),
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),
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),
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// Floating particles
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...List.generate(8, (index) {
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return Positioned(
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left: (index * 45.0) % MediaQuery.of(context).size.width,
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top: (index * 80.0) % MediaQuery.of(context).size.height,
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child: Transform.translate(
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offset: Offset(
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math.sin(_backgroundAnimation.value + index * 0.5) * 20,
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math.cos(_backgroundAnimation.value + index * 0.3) * 15,
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),
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child: Container(
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width: 4 + (index % 3) * 2,
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height: 4 + (index % 3) * 2,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white.withOpacity(0.3),
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),
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),
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),
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);
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}),
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// Gradient overlay for better text readability
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Container(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [
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Colors.transparent,
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Colors.black.withOpacity(0.1),
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Colors.transparent,
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],
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),
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),
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),
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],
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);
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}
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Widget _buildLogo(BuildContext context) {
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return Column(
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children: [
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Text(
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context.lang.login_header,
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style: AppStyle.h1.copyWith(
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fontWeight: FontWeight.bold,
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color: AppColor.white,
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shadows: [
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Shadow(
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offset: const Offset(0, 2),
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blurRadius: 10,
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color: Colors.black.withOpacity(0.3),
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),
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],
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),
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textAlign: TextAlign.center,
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),
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const SpaceHeight(8),
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Text(
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context.lang.login_desc,
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style: AppStyle.lg.copyWith(
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color: AppColor.textLight,
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shadows: [
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Shadow(
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offset: const Offset(0, 1),
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blurRadius: 5,
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color: Colors.black.withOpacity(0.2),
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),
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],
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),
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),
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],
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);
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}
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Widget _buildLoginCard(BuildContext context) {
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(vertical: 32, horizontal: 24),
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decoration: BoxDecoration(
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color: AppColor.white,
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borderRadius: BorderRadius.circular(24),
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boxShadow: [
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BoxShadow(
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color: AppColor.black.withOpacity(0.15),
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blurRadius: 40,
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offset: const Offset(0, 20),
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spreadRadius: 0,
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),
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BoxShadow(
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color: AppColor.black.withOpacity(0.1),
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blurRadius: 10,
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offset: const Offset(0, 5),
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spreadRadius: 0,
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),
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],
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),
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child: Form(
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key: _formKey,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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LoginEmailField(controller: _emailController),
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const SpaceHeight(24),
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LoginPasswordField(controller: _passwordController),
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const SpaceHeight(16),
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_buildForgetPassword(context),
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const SpaceHeight(32),
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_buildLoginButton(),
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],
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),
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),
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);
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}
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Widget _buildForgetPassword(BuildContext context) {
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return Align(
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alignment: Alignment.centerRight,
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child: GestureDetector(
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onTap: () {},
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child: Text(
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'${context.lang.forgot_password}?',
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style: AppStyle.md.copyWith(
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color: AppColor.primary,
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fontWeight: FontWeight.w600,
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),
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),
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),
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);
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}
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Widget _buildLoginButton() {
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return AppElevatedButton(
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text: context.lang.sign_in,
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isLoading: _isLoading,
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onPressed: _isLoading ? null : _handleLogin,
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);
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}
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}
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