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Exchange Announcement Banner improvements #1771

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Merged
i5hi merged 2 commits into from
Jan 15, 2026
Merged

Exchange Announcement Banner improvements #1771

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37ecd4c
feat: enhance announcement banner with bottom sheet interaction and i…
mocodesmo Jan 11, 2026
fef26fc
fix: set maxLines and overflow for announcement banner text
mocodesmo Jan 11, 2026
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170 changes: 142 additions & 28 deletions lib/features/exchange/ui/widgets/announcement_banner.dart
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import 'package:bb_mobile/core/exchange/domain/entity/announcement.dart';
import 'package:bb_mobile/core/themes/app_theme.dart';
import 'package:bb_mobile/core/widgets/bottom_sheet/x.dart';
import 'package:bb_mobile/core/widgets/text/text.dart';
import 'package:bb_mobile/features/exchange/presentation/exchange_cubit.dart';
import 'package:flutter/material.dart';
Expand Down Expand Up @@ -34,44 +35,157 @@ class _AnnouncementItem extends StatelessWidget {

final Announcement announcement;

@override
Widget build(BuildContext context) {
final isDarkMode = Theme.of(context).brightness == Brightness.dark;

return GestureDetector(
onTap: () => _AnnouncementBottomSheet.show(context, announcement),
child: Container(
margin: const EdgeInsets.only(bottom: 8),
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: isDarkMode
? context.appColors.surface
: context.appColors.secondary,
borderRadius: BorderRadius.circular(2),
border: isDarkMode
? Border.all(
color: context.appColors.outline.withValues(alpha: 0.3),
)
: null,
),
child: Row(
children: [
Icon(
Icons.info_outline,
color: isDarkMode
? context.appColors.onSurface
: context.appColors.onSecondary,
size: 32,
),
const Gap(16),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
BBText(
announcement.title,
style: context.font.bodyMedium?.copyWith(
fontWeight: FontWeight.bold,
),
color: isDarkMode
? context.appColors.onSurface
: context.appColors.onSecondary,
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
const Gap(4),
BBText(
announcement.description,
style: context.font.bodySmall,
color: isDarkMode
? context.appColors.onSurface.withValues(alpha: 0.7)
: context.appColors.onSecondary,
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
],
),
),
],
),
),
);
}
}

class _AnnouncementBottomSheet extends StatelessWidget {
const _AnnouncementBottomSheet({required this.announcement});

final Announcement announcement;

static Future<void> show(BuildContext context, Announcement announcement) {
return BlurredBottomSheet.show(
context: context,
child: _AnnouncementBottomSheet(announcement: announcement),
);
}

@override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.only(bottom: 8),
padding: const EdgeInsets.all(16),
constraints: BoxConstraints(
maxHeight: MediaQuery.of(context).size.height * 0.8,
),
decoration: BoxDecoration(
color: context.appColors.secondary,
borderRadius: BorderRadius.circular(2),
color: context.appColors.surface,
borderRadius: const BorderRadius.vertical(top: Radius.circular(16)),
),
child: Row(
children: [
Icon(
Icons.info_outline,
color: context.appColors.onSecondary,
size: 32,
),
const Gap(16),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
BBText(
announcement.title,
style: context.font.bodyMedium?.copyWith(
fontWeight: FontWeight.bold,
child: SafeArea(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(top: 16),
child: Center(
child: Container(
width: 40,
height: 4,
decoration: BoxDecoration(
color: context.appColors.outline.withValues(alpha: 0.3),
borderRadius: BorderRadius.circular(2),
),
color: context.appColors.onSecondary,
),
const Gap(4),
BBText(
),
),
Padding(
padding: const EdgeInsets.fromLTRB(24, 24, 24, 0),
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Icon(
Icons.info_outline,
color: context.appColors.onSurface,
size: 24,
),
const Gap(12),
Expanded(
child: BBText(
announcement.title,
style: context.font.titleLarge?.copyWith(
fontWeight: FontWeight.bold,
),
),
),
const Gap(12),
GestureDetector(
onTap: () => Navigator.of(context).pop(),
child: Icon(
Icons.close,
color: context.appColors.onSurface,
size: 24,
),
),
],
),
),
const Gap(16),
Flexible(
child: SingleChildScrollView(
padding: const EdgeInsets.fromLTRB(24, 0, 24, 24),
child: BBText(
announcement.description,
style: context.font.bodySmall,
color: context.appColors.onSecondary,
style: context.font.bodyMedium?.copyWith(
color: context.appColors.onSurface.withValues(alpha: 0.8),
height: 1.5,
),
),
],
),
),
),
],
],
),
),
);
}
Expand Down