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Fix bug that left PerDate widget empty when popped to.

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Previously, when you would navigate to a PerDate widget that already
exists on the Navigation stack, a food that is entered will not be
visible when popping to the PerDate widget with the same date.

This is because the state is not updated (the BLoC exists per PerDate
widget, and a change in one widget does not cause firing an event in the previous widget's BLoC).

With this fix, we call setState() and update the entries for the widget
from storage.
This commit is contained in:
Marco 2024-09-13 16:49:38 +02:00
parent 1853a7f261
commit 109d3e23de
1 changed files with 96 additions and 80 deletions
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176
lib/perdate/perdate_widget.dart
View File

@ -41,24 +41,24 @@ class _PerDateWidgetState extends State<PerDateWidget> {
@override
Widget build(BuildContext context) {
return FutureBuilder(
future: entriesFuture,
builder: (context, snapshot) {
return snapshot.connectionState != ConnectionState.done
? const Center(child: CircularProgressIndicator())
: MultiProvider(
providers: [
ChangeNotifierProvider(
create: (context) => EnterFoodController()),
BlocProvider(
create: (context) => FoodEntryBloc(
initialState: FoodEntryState(foodEntries: entries),
storage: storage,
forDate: widget.date,
),
)
],
child: BlocBuilder<FoodEntryBloc, FoodEntryState>(
builder: (context, state) {
future: entriesFuture,
builder: (context, snapshot) {
return snapshot.connectionState != ConnectionState.done
? const Center(child: CircularProgressIndicator())
: MultiProvider(
providers: [
ChangeNotifierProvider(
create: (context) => EnterFoodController()),
BlocProvider(
create: (context) => FoodEntryBloc(
initialState: FoodEntryState(foodEntries: entries),
storage: storage,
forDate: widget.date,
),
)
],
child: BlocBuilder<FoodEntryBloc, FoodEntryState>(
builder: (context, state) {
return Scaffold(
appBar: AppBar(
title:
@ -71,76 +71,92 @@ class _PerDateWidgetState extends State<PerDateWidget> {
color: Theme.of(context).colorScheme.secondary,
child: SumWidget(foodEntries: state.foodEntries)),
drawer: const AppDrawer(),
floatingActionButton: OverflowBar(children: [
ScanFoodFloatingButton(
onPressed: () async {
var client = FoodFactLookupClient();
var scanResult = await BarcodeScanner.scan();
if (scanResult.type == ResultType.Cancelled) {
return;
}
if (!context.mounted) return;
if (scanResult.type == ResultType.Error) {
showNewSnackbarWith(context,
"Fehler beim Scannen des Barcodes.");
}
var response = await client
.retrieveFoodInfo(scanResult.rawContent);
if (!context.mounted) return;
if (response.status ==
FoodFactResponseStatus.barcodeNotFound) {
showNewSnackbarWith(context,
"Barcode konnte nicht gefunden werden.");
return;
}
if (response.status ==
FoodFactResponseStatus
.foodFactServerNotReachable) {
showNewSnackbarWith(context,
"OpenFoodFacts-Server konnte nicht erreicht werden.");
return;
}
context.read<EnterFoodController>().set(
response.food!.name,
response.food!.kcalPer100g.toString(),
);
},
),
const SizedBox(width: 8),
CalendarFloatingButton(
startFromDate: widget.date,
onDateSelected: (dateSelected) {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) {
return PerDateWidget(date: dateSelected);
},
),
);
},
),
]),
floatingActionButton: OverflowBar(
children: [
ScanFoodFloatingButton(onPressed: () {
_onScanButtonPressed(context);
}),
const SizedBox(width: 8),
CalendarFloatingButton(
startFromDate: widget.date,
onDateSelected: (dateSelected) {
_onDateSelected(dateSelected);
},
),
],
),
floatingActionButtonLocation:
FloatingActionButtonLocation.endDocked);
}),
);
});
},
),
);
},
);
}
void showNewSnackbarWith(BuildContext context, String text) {
var snackbar =
ErrorSnackbar(colorScheme: Theme.of(context).colorScheme, text: text);
ScaffoldMessenger.of(context).clearSnackBars();
ScaffoldMessenger.of(context).showSnackBar(snackbar);
ScaffoldMessenger.of(context)
..removeCurrentSnackBar()
..showSnackBar(snackbar);
}
void _onDateSelected(DateTime date) {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) {
return PerDateWidget(date: date);
},
),
).then((val) {
setState(
() {
entriesFuture = storage.getEntriesForDate(widget.date);
entriesFuture.then(
(val) {
entries = val;
},
);
},
);
});
}
void _onScanButtonPressed(BuildContext context) async {
var client = FoodFactLookupClient();
var scanResult = await BarcodeScanner.scan();
if (scanResult.type == ResultType.Cancelled) {
return;
}
if (!context.mounted) return;
if (scanResult.type == ResultType.Error) {
showNewSnackbarWith(context, "Fehler beim Scannen des Barcodes.");
}
var response = await client.retrieveFoodInfo(scanResult.rawContent);
if (!context.mounted) return;
if (response.status == FoodFactResponseStatus.barcodeNotFound) {
showNewSnackbarWith(context, "Barcode konnte nicht gefunden werden.");
return;
}
if (response.status == FoodFactResponseStatus.foodFactServerNotReachable) {
showNewSnackbarWith(
context, "OpenFoodFacts-Server konnte nicht erreicht werden.");
return;
}
context.read<EnterFoodController>().set(
response.food!.name,
response.food!.kcalPer100g.toString(),
);
}
}