MIF_E31231313/Android/flutter_app/lib/app_design.dart

607 lines
16 KiB
Dart

import 'package:flutter/material.dart';
const String sgiziLogoAsset = 'assets/image/logo_sgizi.png';
/// Spacing ringkas untuk layout production-ready.
class SgSpacing {
const SgSpacing._();
static const pageH = 16.0;
static const pageV = 12.0;
static const section = 14.0;
static const item = 8.0;
static const cardPad = 12.0;
}
class SgColors {
const SgColors._();
static const primary = Color(0xFF4B8E96);
static const primaryTeal = Color(0xFF0B7A86);
static const primaryDark = Color(0xFF2F737A);
static const secondary = Color(0xFFA8D5BA);
static const background = Color(0xFFF5F7F6);
static const surface = Colors.white;
static const textPrimary = Color(0xFF1E1E1E);
static const textSecondary = Color(0xFF6B7280);
static const border = Color(0xFFE0E7E4);
static const danger = Color(0xFFE53935);
static const warning = Color(0xFFF59E0B);
static const success = Color(0xFF34A853);
}
class AppTypography {
const AppTypography._();
static const h1 = TextStyle(
fontSize: 24,
height: 1.2,
fontWeight: FontWeight.w800,
color: SgColors.textPrimary,
);
static const h2 = TextStyle(
fontSize: 18,
height: 1.3,
fontWeight: FontWeight.w700,
color: SgColors.textPrimary,
);
static const h3 = TextStyle(
fontSize: 15,
height: 1.35,
fontWeight: FontWeight.w600,
color: SgColors.textPrimary,
);
static const body = TextStyle(
fontSize: 14,
height: 1.5,
fontWeight: FontWeight.w400,
color: SgColors.textSecondary,
);
static const caption = TextStyle(
fontSize: 12,
height: 1.35,
fontWeight: FontWeight.w500,
color: SgColors.textSecondary,
);
}
class AppLogo extends StatelessWidget {
const AppLogo({super.key, this.size = 56, this.showLabel = false});
final double size;
final bool showLabel;
@override
Widget build(BuildContext context) {
return Row(
mainAxisSize: MainAxisSize.min,
children: [
ClipRRect(
borderRadius: BorderRadius.circular(size * 0.24),
child: Image.asset(
sgiziLogoAsset,
width: size,
height: size,
fit: BoxFit.cover,
errorBuilder: (_, _, _) => Container(
width: size,
height: size,
decoration: BoxDecoration(
color: SgColors.primary,
borderRadius: BorderRadius.circular(size * 0.24),
),
child: const Icon(Icons.bolt, color: Colors.white),
),
),
),
if (showLabel) ...[
const SizedBox(width: 12),
Text(
'S-Gizi',
style: AppTypography.h1.copyWith(
color: SgColors.primaryDark,
fontSize: 22,
),
),
],
],
);
}
}
class SgAvatar extends StatelessWidget {
const SgAvatar({
super.key,
required this.name,
this.radius = 28,
this.gender,
this.icon,
});
final String name;
final String? gender;
final double radius;
final IconData? icon;
@override
Widget build(BuildContext context) {
final initial = getInitialName(name);
final colors = avatarGradientColors(name);
return Container(
width: radius * 2,
height: radius * 2,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: LinearGradient(
colors: colors,
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
boxShadow: [
BoxShadow(
color: colors.last.withValues(alpha: 0.22),
blurRadius: radius * 0.55,
offset: Offset(0, radius * 0.2),
),
],
),
alignment: Alignment.center,
child: Text(
initial,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w900,
fontSize: radius * 0.82,
height: 1,
),
),
);
}
}
String getInitialName(String? name) {
final value = (name ?? '').trim();
if (value.isEmpty) return 'A';
final first = value.characters.first.toUpperCase();
return RegExp(r'[A-Z0-9]').hasMatch(first) ? first : 'A';
}
List<Color> avatarGradientColors(String? seed) {
const palettes = [
[Color(0xFF4B8E96), Color(0xFF6FC7C8)],
[Color(0xFF5B8DEF), Color(0xFF8DB7FF)],
[Color(0xFF58B98B), Color(0xFF9DDFC1)],
[Color(0xFFE89B5B), Color(0xFFFFC08A)],
[Color(0xFF8B7AE6), Color(0xFFC2B7FF)],
[Color(0xFFE06F91), Color(0xFFFFA9BD)],
];
final text = (seed ?? '').trim();
if (text.isEmpty) return palettes.first;
final hash = text.codeUnits.fold<int>(
0,
(value, code) => (value + code) & 0x7fffffff,
);
return palettes[hash % palettes.length];
}
class ChildAvatar extends StatelessWidget {
const ChildAvatar({
super.key,
required this.name,
required this.gender,
this.radius = 28,
});
final String name;
final String gender;
final double radius;
@override
Widget build(BuildContext context) {
return SgAvatar(
name: name,
gender: gender,
radius: radius,
icon: Icons.child_care_rounded,
);
}
}
class HealthCard extends StatelessWidget {
const HealthCard({
super.key,
required this.child,
this.padding = const EdgeInsets.all(SgSpacing.cardPad),
this.margin,
this.color = SgColors.surface,
this.borderColor,
this.onTap,
this.dense = false,
});
final Widget child;
final EdgeInsetsGeometry padding;
final EdgeInsetsGeometry? margin;
final Color color;
final Color? borderColor;
final VoidCallback? onTap;
final bool dense;
@override
Widget build(BuildContext context) {
final radius = dense ? 16.0 : 18.0;
final card = AnimatedContainer(
duration: const Duration(milliseconds: 220),
curve: Curves.easeOut,
margin: margin,
padding: padding,
decoration: BoxDecoration(
color: color,
borderRadius: BorderRadius.circular(radius),
border: Border.all(color: borderColor ?? SgColors.border),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: dense ? 0.04 : 0.06),
blurRadius: dense ? 12 : 16,
offset: Offset(0, dense ? 6 : 8),
),
],
),
child: child,
);
if (onTap == null) {
return card;
}
return Material(
color: Colors.transparent,
child: InkWell(
borderRadius: BorderRadius.circular(radius),
onTap: onTap,
child: card,
),
);
}
}
class StatusBadge extends StatelessWidget {
const StatusBadge({
super.key,
required this.text,
this.color = SgColors.success,
this.compact = false,
});
final String text;
final Color color;
final bool compact;
@override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.symmetric(
horizontal: compact ? 8 : 10,
vertical: compact ? 4 : 6,
),
decoration: BoxDecoration(
color: color.withValues(alpha: 0.14),
borderRadius: BorderRadius.circular(999),
border: Border.all(color: color.withValues(alpha: 0.32)),
),
child: Text(
text,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: AppTypography.caption.copyWith(
color: color,
fontWeight: FontWeight.w700,
fontSize: compact ? 11 : 12,
),
),
);
}
}
class PrimaryButton extends StatelessWidget {
const PrimaryButton({
super.key,
required this.label,
required this.onPressed,
this.icon,
this.isOutlined = false,
});
final String label;
final VoidCallback? onPressed;
final IconData? icon;
final bool isOutlined;
@override
Widget build(BuildContext context) {
final child = Row(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: [
if (icon != null) ...[Icon(icon, size: 20), const SizedBox(width: 8)],
Flexible(
child: Text(
label,
overflow: TextOverflow.ellipsis,
style: const TextStyle(fontWeight: FontWeight.w800),
),
),
],
);
if (isOutlined) {
return SizedBox(
width: double.infinity,
height: 56,
child: OutlinedButton(
onPressed: onPressed,
style: OutlinedButton.styleFrom(
foregroundColor: SgColors.primary,
side: const BorderSide(color: SgColors.primary),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(18),
),
),
child: child,
),
);
}
return SizedBox(
width: double.infinity,
height: 56,
child: FilledButton(
onPressed: onPressed,
style: FilledButton.styleFrom(
backgroundColor: SgColors.primary,
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(18),
),
elevation: 1,
shadowColor: SgColors.primary.withValues(alpha: 0.32),
),
child: child,
),
);
}
}
class EmptyState extends StatelessWidget {
const EmptyState({
super.key,
required this.title,
required this.message,
this.actionLabel,
this.onAction,
this.icon = Icons.inbox_outlined,
this.assetImage,
});
final String title;
final String message;
final String? actionLabel;
final VoidCallback? onAction;
final IconData icon;
final String? assetImage;
@override
Widget build(BuildContext context) {
return Center(
child: Padding(
padding: const EdgeInsets.all(20),
child: HealthCard(
dense: true,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
if (assetImage != null)
ClipRRect(
borderRadius: BorderRadius.circular(16),
child: Image.asset(
assetImage!,
height: 88,
width: 88,
fit: BoxFit.cover,
errorBuilder: (_, _, _) => _emptyIcon(icon),
),
)
else
_emptyIcon(icon),
const SizedBox(height: 12),
Text(title, style: AppTypography.h2, textAlign: TextAlign.center),
const SizedBox(height: 6),
Text(
message,
style: AppTypography.body.copyWith(fontSize: 13),
textAlign: TextAlign.center,
),
if (actionLabel != null && onAction != null) ...[
const SizedBox(height: 12),
PrimaryButton(label: actionLabel!, onPressed: onAction),
],
],
),
),
),
);
}
}
Widget _emptyIcon(IconData icon) {
return CircleAvatar(
radius: 28,
backgroundColor: const Color(0xFFE9F6F2),
child: Icon(icon, color: SgColors.primary, size: 28),
);
}
class ErrorState extends StatelessWidget {
const ErrorState({
super.key,
required this.message,
required this.onRetry,
this.title = 'Terjadi Kendala',
this.icon = Icons.wifi_off_rounded,
this.color = SgColors.danger,
});
final String title;
final String message;
final VoidCallback onRetry;
final IconData icon;
final Color color;
@override
Widget build(BuildContext context) {
return Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: HealthCard(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
CircleAvatar(
radius: 32,
backgroundColor: color.withValues(alpha: 0.12),
child: Icon(icon, color: color),
),
const SizedBox(height: 16),
Text(title, style: AppTypography.h2, textAlign: TextAlign.center),
const SizedBox(height: 8),
Text(
message,
style: AppTypography.body,
textAlign: TextAlign.center,
),
const SizedBox(height: 16),
PrimaryButton(
label: 'Coba Lagi',
icon: Icons.refresh_rounded,
onPressed: onRetry,
),
],
),
),
),
);
}
}
class MetricProgress extends StatelessWidget {
const MetricProgress({
super.key,
required this.label,
required this.description,
required this.status,
required this.value,
required this.icon,
});
final String label;
final String description;
final String status;
final double value;
final IconData icon;
@override
Widget build(BuildContext context) {
final clampedValue = value.clamp(0.0, 1.0).toDouble();
return HealthCard(
margin: const EdgeInsets.only(bottom: 12),
child: Column(
children: [
Row(
children: [
CircleAvatar(
radius: 22,
backgroundColor: const Color(0xFFE9F6F2),
child: Icon(icon, color: SgColors.primary, size: 22),
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(label, style: AppTypography.h3),
const SizedBox(height: 2),
Text(description, style: AppTypography.caption),
],
),
),
Text(
status.toUpperCase(),
textAlign: TextAlign.right,
style: AppTypography.caption.copyWith(
color: SgColors.textPrimary,
fontWeight: FontWeight.w800,
),
),
],
),
const SizedBox(height: 16),
ClipRRect(
borderRadius: BorderRadius.circular(99),
child: TweenAnimationBuilder<double>(
tween: Tween(begin: 0.0, end: clampedValue),
duration: const Duration(milliseconds: 850),
curve: Curves.easeOutCubic,
builder: (context, animatedValue, _) {
return LinearProgressIndicator(
value: animatedValue,
minHeight: 8,
backgroundColor: const Color(0xFFEAF4F1),
valueColor: const AlwaysStoppedAnimation(SgColors.primary),
);
},
),
),
const SizedBox(height: 8),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: const [
Text('Kurang', style: AppTypography.caption),
Text(
'Ideal',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w800,
color: SgColors.primary,
),
),
Text('Berlebih', style: AppTypography.caption),
],
),
],
),
);
}
}
PageRouteBuilder<T> fadeRoute<T>(Widget page) {
return PageRouteBuilder<T>(
transitionDuration: const Duration(milliseconds: 260),
reverseTransitionDuration: const Duration(milliseconds: 220),
pageBuilder: (_, _, _) => page,
transitionsBuilder: (_, animation, _, child) {
return FadeTransition(
opacity: CurvedAnimation(parent: animation, curve: Curves.easeOut),
child: SlideTransition(
position: Tween<Offset>(
begin: const Offset(0.03, 0),
end: Offset.zero,
).animate(CurvedAnimation(parent: animation, curve: Curves.easeOut)),
child: child,
),
);
},
);
}