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[examples] Verdure client cleanup and dependency updates #646

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2 changes: 1 addition & 1 deletion examples/verdure/client/lib/features/ai/ai_provider.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@ class AiClientState {
required this.surfaceUpdateController,
});

/// The A2uiMessageProcessor.
/// The A2UI message processor.
final A2uiMessageProcessor a2uiMessageProcessor;

/// The content generator.
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21 changes: 10 additions & 11 deletions examples/verdure/client/lib/features/ai/ai_provider.g.dart
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2 changes: 1 addition & 1 deletion examples/verdure/client/lib/features/screens/order_confirmation_screen.dart
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Expand Up @@ -44,7 +44,7 @@ class OrderConfirmationScreen extends ConsumerWidget {
error: (error, stackTrace) => Center(child: Text('Error: $error')),
),
bottomNavigationBar: Padding(
padding: const EdgeInsets.all(16.0),
padding: const EdgeInsets.all(16),
child: ElevatedButton(
onPressed: () => context.go('/'),
child: const Text('Back to Start'),
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6 changes: 3 additions & 3 deletions examples/verdure/client/lib/features/screens/questionnaire_screen.dart
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Expand Up @@ -25,12 +25,12 @@ class _QuestionnaireScreenState extends ConsumerState<QuestionnaireScreen> {
@override
Widget build(BuildContext context) {
ref.listen<AsyncValue<AiClientState>>(aiProvider, (previous, next) {
if (next is AsyncData && !_initialRequestSent) {
if (_initialRequestSent) return;
if (next case AsyncData(value: final aiState)) {
setState(() {
_initialRequestSent = true;
});
Comment on lines 30 to 32
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@gemini-code-assist gemini-code-assist bot Dec 28, 2025

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medium

Calling setState within a ref.listen callback inside the build method is discouraged as it can lead to unexpected rebuilds. Since _initialRequestSent is a flag to prevent re-execution and doesn't directly affect the UI, you can update it without setState to avoid an unnecessary widget rebuild. You can replace these lines with a simple assignment:

_initialRequestSent = true;

final AiClientState? aiState = next.value;
aiState?.conversation.sendRequest(
aiState.conversation.sendRequest(
UserMessage.text('USER_SUBMITTED_DETAILS'),
);
}
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20 changes: 11 additions & 9 deletions examples/verdure/client/lib/features/screens/upload_photo_screen.dart
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Expand Up @@ -33,7 +33,7 @@ class UploadPhotoScreen extends ConsumerWidget {
),
body: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.all(16.0),
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Expand All @@ -52,7 +52,9 @@ class UploadPhotoScreen extends ConsumerWidget {
),
const SizedBox(height: 16),
Text(
'''Upload a photo of your front or back yard, and our designers will use it to create a custom vision. Get ready to see the potential.''',
'Upload a photo of your front or back yard, '
'and our designers will use it to create a custom vision. '
'Get ready to see the potential.',
textAlign: TextAlign.center,
style: Theme.of(context).textTheme.bodyMedium!.copyWith(
color: Theme.of(context).colorScheme.onSurface,
Expand Down Expand Up @@ -146,34 +148,34 @@ class InfoCard extends StatelessWidget {
child: InkWell(
onTap: onTap,
child: Padding(
padding: const EdgeInsets.all(16.0),
padding: const EdgeInsets.all(16),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
spacing: 16,
children: [
CircleAvatar(
maxRadius: 25,
child: Icon(icon, size: 25, color: const Color(0xff15a34a)),
),
if (title != null || subtitle != null) const SizedBox(width: 16),
if (title != null || subtitle != null)
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
spacing: 4,
children: [
if (title != null)
if (title case final title?)
Text(
title!,
title,
style: Theme.of(context).textTheme.titleMedium!
.copyWith(
fontWeight: FontWeight.bold,
color: Theme.of(context).colorScheme.onSurface,
),
),
if (subtitle != null) const SizedBox(height: 4),
if (subtitle != null)
if (subtitle case final subtitle?)
Text(
subtitle!,
subtitle,
style: Theme.of(context).textTheme.bodyMedium!
.copyWith(
color: Theme.of(context).colorScheme.onSurface,
Expand Down
14 changes: 7 additions & 7 deletions examples/verdure/client/lib/features/screens/welcome_screen.dart
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Expand Up @@ -37,12 +37,12 @@ class WelcomeScreen extends StatelessWidget {
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Padding(
padding: const EdgeInsets.only(top: 64.0),
padding: const EdgeInsets.only(top: 64),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
spacing: 8,
children: [
const Icon(Icons.eco, color: Colors.white, size: 32),
const SizedBox(width: 8),
Text(
'Verdure',
style: Theme.of(context).textTheme.headlineSmall
Expand All @@ -55,8 +55,9 @@ class WelcomeScreen extends StatelessWidget {
),
),
const Padding(
padding: EdgeInsets.all(16.0),
padding: EdgeInsets.all(16),
child: Column(
spacing: 16,
children: [
Text(
'Envision Your Dream Landscape',
Expand All @@ -68,9 +69,9 @@ class WelcomeScreen extends StatelessWidget {
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 16),
Text(
'''Bring your perfect outdoor space to life with our suite of AI design agents.''',
'Bring your perfect outdoor space to life with '
'our suite of AI design agents.',
textAlign: TextAlign.center,
style: TextStyle(
fontFamily: 'SpaceGrotesk',
Expand All @@ -89,6 +90,7 @@ class WelcomeScreen extends StatelessWidget {
Container(
padding: const EdgeInsets.fromLTRB(16, 16, 16, 24),
child: Column(
spacing: 16,
children: [
ElevatedButton(
onPressed: () => context.push('/upload_photo'),
Expand All @@ -99,12 +101,10 @@ class WelcomeScreen extends StatelessWidget {
),
child: const Text('Start New Project'),
),
const SizedBox(height: 16),
TextButton(
onPressed: () {},
child: const Text('Explore Ideas'),
),
const SizedBox(height: 16),
TextButton(
onPressed: () {},
child: const Text('I\'m a returning user'),
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2 changes: 1 addition & 1 deletion examples/verdure/client/lib/features/state/loading_state.dart
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Expand Up @@ -36,7 +36,7 @@ class LoadingState {
} else if (_isProcessingValue && !isProcessing.value) {
// Went from true to false, reset messages after a short delay
// to allow the fade-out animation to complete.
Future.delayed(const Duration(milliseconds: 500), clearMessages);
Future<void>.delayed(const Duration(milliseconds: 500), clearMessages);
}
_isProcessingValue = isProcessing.value;
});
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8 changes: 4 additions & 4 deletions examples/verdure/client/lib/features/widgets/app_navigator.dart
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Expand Up @@ -31,8 +31,8 @@ class _AppNavigatorState extends ConsumerState<AppNavigator> {
// It's safe to use ref.read here because we are not rebuilding the widget
// when the provider changes, but instead subscribing to a stream.
final AsyncValue<AiClientState> aiState = ref.read(aiProvider);
if (aiState is AsyncData) {
_subscription = aiState.value!.surfaceUpdateController.stream.listen(
if (aiState case AsyncData(:final value)) {
_subscription = value.surfaceUpdateController.stream.listen(
_onSurfaceUpdate,
);
}
Expand Down Expand Up @@ -62,9 +62,9 @@ class _AppNavigatorState extends ConsumerState<AppNavigator> {
@override
Widget build(BuildContext context) {
ref.listen<AsyncValue<AiClientState?>>(aiProvider, (previous, next) {
if (next is AsyncData) {
if (next case AsyncData(:final value?)) {
_subscription?.cancel();
_subscription = next.value!.surfaceUpdateController.stream.listen(
_subscription = value.surfaceUpdateController.stream.listen(
_onSurfaceUpdate,
);
}
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10 changes: 5 additions & 5 deletions examples/verdure/client/lib/features/widgets/global_progress_indicator.dart
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Expand Up @@ -111,27 +111,27 @@ class _LoadingMessagesState extends State<_LoadingMessages> {
color: Colors.transparent,
child: Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24.0),
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Container(
height: 80.0,
height: 80,
padding: const EdgeInsets.symmetric(horizontal: 24),
decoration: BoxDecoration(
color: colorScheme.primary,
borderRadius: BorderRadius.circular(8.0),
borderRadius: BorderRadius.circular(8),
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
spacing: 16,
children: [
const SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(
strokeWidth: 2.0,
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
),
),
const SizedBox(width: 16),
Expanded(
child: AnimatedSwitcher(
duration: const Duration(milliseconds: 500),
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14 changes: 8 additions & 6 deletions examples/verdure/client/pubspec.yaml
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Expand Up @@ -3,8 +3,10 @@
# found in the LICENSE file.

name: verdure
description: "A new Flutter project."
publish_to: "none"
description: >-
A sample of a Flutter client interacting with a Python-based A2A
(Agent-to-Agent) server for landscape design.
publish_to: none
version: 0.1.0

environment:
Expand All @@ -16,23 +18,23 @@ dependencies:
device_info_plus: ^12.2.0
flutter:
sdk: flutter
flutter_riverpod: ^3.0.3
flutter_riverpod: ^3.1.0
flutter_svg: ^2.2.2
genui: ^0.6.0
genui_a2ui: ^0.6.0
go_router: ^17.0.0
image_picker: ^1.2.0
logging: ^1.3.0
mime: ^2.0.0
riverpod_annotation: ^3.0.3
riverpod_annotation: ^4.0.0

dev_dependencies:
build_runner: ^2.7.1
build_runner: ^2.10.3
dart_flutter_team_lints: ^3.5.2
flutter_lints: ^6.0.0
flutter_test:
sdk: flutter
riverpod_generator: ^3.0.3
riverpod_generator: ^4.0.0

flutter:
uses-material-design: true
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