admin1
98 lines
2.4 KiB
Dart
98 lines
2.4 KiB
Dart
import 'package:flutter/material.dart';
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import '../layout/adaptive_card_grid.dart';
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import '../theme/app_theme.dart';
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class AppSkeleton extends StatefulWidget {
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final double? width;
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final double? height;
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final double radius;
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const AppSkeleton({super.key, this.width, this.height, this.radius = 8});
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@override
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State<AppSkeleton> createState() => _AppSkeletonState();
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}
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class _AppSkeletonState extends State<AppSkeleton>
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with SingleTickerProviderStateMixin {
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late final AnimationController _c = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 1100),
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)..repeat(reverse: true);
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@override
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void dispose() {
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_c.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final base = Theme.of(context).colorScheme.onSurface;
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return AnimatedBuilder(
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animation: _c,
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builder: (context, _) {
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final alpha = 0.04 + 0.05 * _c.value;
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return Container(
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width: widget.width,
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height: widget.height,
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decoration: BoxDecoration(
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color: base.withValues(alpha: alpha),
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borderRadius: BorderRadius.circular(widget.radius),
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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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class SkeletonGrid extends StatelessWidget {
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final int itemCount;
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final double itemHeight;
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final double minCardWidth;
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final EdgeInsetsGeometry padding;
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const SkeletonGrid({
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super.key,
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this.itemCount = 6,
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this.itemHeight = 84,
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this.minCardWidth = kRichCardMinWidth,
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this.padding = const EdgeInsets.symmetric(horizontal: 24),
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});
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@override
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Widget build(BuildContext context) {
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final tokens = context.appTokens;
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return Padding(
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padding: padding,
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child: LayoutBuilder(
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builder: (_, constraints) {
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final columns = cardColumnsFor(
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constraints.maxWidth,
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minCardWidth: minCardWidth,
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);
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final width =
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(constraints.maxWidth - kCardGap * (columns - 1)) / columns;
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return Wrap(
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spacing: kCardGap,
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runSpacing: kCardGap,
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children: [
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for (var i = 0; i < itemCount; i++)
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SizedBox(
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width: width,
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child: AppSkeleton(
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height: itemHeight,
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radius: tokens.radiusCard,
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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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