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Fixed lazy loading logs

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This commit is contained in:
Juan Gilsanz Polo 2023-09-19 00:10:54 +02:00
parent 87bcdd337f
commit bc7cb4ccd4
1 changed files with 75 additions and 71 deletions
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146
lib/screens/logs/logs.dart
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@ -31,8 +31,6 @@ class Logs extends StatefulWidget {
}
class _LogsState extends State<Logs> {
late ScrollController scrollController;
bool showDivider = true;
Log? selectedLog;
@ -65,25 +63,26 @@ class _LogsState extends State<Logs> {
}
}
void scrollListener() {
bool scrollListener(ScrollUpdateNotification scrollNotification) {
final logsProvider = Provider.of<LogsProvider>(context, listen: false);
if (scrollController.position.extentAfter < 500 && logsProvider.isLoadingMore == false) {
if (scrollNotification.metrics.extentAfter < 500 && logsProvider.isLoadingMore == false) {
logsProvider.fetchLogs(loadingMore: true);
}
if (scrollController.position.pixels > 0) {
if (scrollNotification.metrics.pixels > 0) {
setState(() => showDivider = false);
}
else {
setState(() => showDivider = true);
}
return false;
}
@override
void initState() {
final logsProvider = Provider.of<LogsProvider>(context, listen: false);
scrollController = ScrollController()..addListener(scrollListener);
logsProvider.fetchLogs(inOffset: 0);
fetchFilteringRules();
fetchClients();
@ -236,78 +235,83 @@ class _LogsState extends State<Logs> {
await logsProvider.fetchLogs(inOffset: 0);
},
displacement: 95,
child: CustomScrollView(
slivers: [
SliverOverlapInjector(
handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
),
if (logsProvider.logsData!.data.isNotEmpty) SliverList.builder(
itemCount: logsProvider.logsData!.data.length,
itemBuilder: (context, index) {
if (logsProvider.isLoadingMore == true && index == logsProvider.logsData!.data.length) {
return const Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Center(
child: CircularProgressIndicator(),
),
);
}
else if (logsProvider.logsData!.data[index].question.name != null) {
return LogTile(
log: logsProvider.logsData!.data[index],
index: index,
length: logsProvider.logsData!.data.length,
isLogSelected: selectedLog != null && selectedLog == logsProvider.logsData!.data[index],
onLogTap: (log) {
if (width <= 1100) {
Navigator.push(context, MaterialPageRoute(
builder: (context) => LogDetailsScreen(
log: log,
dialog: false,
)
));
child: NotificationListener(
onNotification: scrollListener,
child: CustomScrollView(
slivers: [
SliverOverlapInjector(
handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
),
if (logsProvider.logsData!.data.isNotEmpty) SliverList.builder(
itemCount: logsProvider.isLoadingMore
? logsProvider.logsData!.data.length + 1
: logsProvider.logsData!.data.length,
itemBuilder: (context, index) {
if (logsProvider.isLoadingMore == true && index == logsProvider.logsData!.data.length) {
return const Padding(
padding: EdgeInsets.symmetric(vertical: 20),
child: Center(
child: CircularProgressIndicator(),
),
);
}
else if (logsProvider.logsData!.data[index].question.name != null) {
return LogTile(
log: logsProvider.logsData!.data[index],
index: index,
length: logsProvider.logsData!.data.length,
isLogSelected: selectedLog != null && selectedLog == logsProvider.logsData!.data[index],
onLogTap: (log) {
if (width <= 1100) {
Navigator.push(context, MaterialPageRoute(
builder: (context) => LogDetailsScreen(
log: log,
dialog: false,
)
));
}
setState(() => selectedLog = log);
}
setState(() => selectedLog = log);
}
);
);
}
else {
return null;
}
}
else {
return null;
}
}
),
if (logsProvider.logsData!.data.isEmpty) SliverFillRemaining(
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(
AppLocalizations.of(context)!.noLogsDisplay,
style: TextStyle(
fontSize: 24,
color: Theme.of(context).colorScheme.onSurfaceVariant,
),
),
if (logsProvider.logsOlderThan != null) Padding(
padding: const EdgeInsets.only(
top: 30,
left: 20,
right: 20
),
child: Text(
AppLocalizations.of(context)!.noLogsThatOld,
textAlign: TextAlign.center,
),
if (logsProvider.logsData!.data.isEmpty) SliverFillRemaining(
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(
AppLocalizations.of(context)!.noLogsDisplay,
style: TextStyle(
fontSize: 16,
fontSize: 24,
color: Theme.of(context).colorScheme.onSurfaceVariant,
),
),
),
]
if (logsProvider.logsOlderThan != null) Padding(
padding: const EdgeInsets.only(
top: 30,
left: 20,
right: 20
),
child: Text(
AppLocalizations.of(context)!.noLogsThatOld,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
color: Theme.of(context).colorScheme.onSurfaceVariant,
),
),
),
]
),
),
),
)
],
)
],
),
),
),
)