Previously my AutomaticKeepAliveClientMixin did work well to preserve the state but with this code below it is not working.
Firstly i have a Main tab.. inside the 3rd tab there are 3 tabs (nested Tab if you may) The code below fails to preserve the state of the tab while i am switching from the three nested tabs.
I think i am using AutomatickKeepAlive.. appropriately, however can't understand why am i not able to save it? i am using firestore data base and streambuilder / futurebuilder too. Looks like the Futurebuilder is being called no matter what.
class _RecordsState extends State<Records> with AutomaticKeepAliveClientMixin {
@override
bool get wantKeepAlive => true;
late Stream<QuerySnapshot> _captainStream;
late Stream<QuerySnapshot> _firstOfficerStream;
late Stream<QuerySnapshot> _cabinCrewStream;
PlutoGridStateManager? _stateManager;
List<Map<String, dynamic>>? dataCabin;
List<PlutoColumn> columns = [];
List<PlutoRow>? plutoRows;
List<PlutoRow> pilotRows = [];
PlutoGridMode mode = PlutoGridMode.selectWithOneTap;
@override
void initState() {
super.initState();
_captainStream = FirebaseFirestore.instance.collection('CAPTAIN_DATA').snapshots();
_firstOfficerStream = FirebaseFirestore.instance.collection('FIRST_OFFICER_DATA').snapshots();
_cabinCrewStream = FirebaseFirestore.instance.collection('CABIN_CREW_DATA').snapshots();
}
Future<Map<String, dynamic>> getCollectionData(DocumentReference reference, String collectionName) async {
final snapshot = await reference.collection(collectionName).doc('details').get();
return snapshot.data() as Map<String, dynamic>;
}
@override
Widget build(BuildContext context) {
super.build(context);
return Scaffold(
floatingActionButton: FloatingActionButton(
onPressed: () {
setState(() {
mode = mode == PlutoGridMode.selectWithOneTap ? PlutoGridMode.normal : PlutoGridMode.selectWithOneTap;
});
},
child: mode == PlutoGridMode.selectWithOneTap ? const Icon(Icons.edit) : const Icon(Icons.calendar_today),
),
//backgroundColor: Theme.of(context).primaryColor,
body: DefaultTabController(
length: 3,
child: Column(
children: [
const TabBar(
indicator: BoxDecoration(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
topRight: Radius.circular(10),
),
color: MyColors.primarySwatch),
labelColor: Colors.white,
tabs: [
Tab(text: 'Captain Training'),
Tab(text: 'First Officer Training'),
Tab(text: 'Cabin Crew Training'),
],
indicatorColor: Color.fromARGB(255, 102, 249, 4),
indicatorSize: TabBarIndicatorSize.tab,
unselectedLabelColor: Colors.black,
),
Expanded(
child: TabBarView(
children: [
StreamBuilder<QuerySnapshot>(
stream: _captainStream,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return const Center(child: CircularProgressIndicator());
}
List<Future<Map<String, dynamic>>> data = getCockpitCrewData(snapshot);
return FutureBuilder<List<Map<String, dynamic>>>(
future: Future.wait(data),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return const Center(child: CircularProgressIndicator());
}
return buildGrid(snapshot.data!, "captain");
},
);
},
),
StreamBuilder<QuerySnapshot>(
stream: _firstOfficerStream,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return const Center(child: CircularProgressIndicator());
}
final data = snapshot.data!.docs.map((doc) => doc.data() as Map<String, dynamic>).toList();
return buildGrid(data, "firstOfficer");
},
),
StreamBuilder<QuerySnapshot>(
stream: _cabinCrewStream,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return const Center(child: CircularProgressIndicator());
}
if (snapshot.hasData) {
// print('data ihas data ncoming...');
for (var change in snapshot.data!.docChanges) {
if (change.type == DocumentChangeType.added) {
} else if (change.type == DocumentChangeType.modified) {
} else if (change.type == DocumentChangeType.removed) {}
}
}
final data = snapshot.data!.docs.map((doc) => doc.data() as Map<String, dynamic>).toList();
return buildGrid(data, "cabinCrew");
},
),
],
),
),
],
),
),
);
}
PlutoGrid buildGrid(List<Map<String, dynamic>> data, String type) {
return PlutoGrid(
// mode: PlutoGridMode.normal,
mode: mode,
onSelected: (event) async {
print(mode);
final PlutoRow row = _stateManager!.rows.elementAt(event.rowIdx!);
final String userId = row.cells['NAME']!.value.toString();
final String firestoreCollection = type == "captain"
? "CAPTAIN_DATA"
: type == "firstOfficer"
? "FIRST_OFFICER_DATA"
: "CABIN_CREW_DATA";
print(event.cell!.column.field);
if (event.cell!.column.field == 'NAME' || event.cell!.column.field == 'Age' || event.cell!.column.field == 'license no') {
CollectionReference crewCollection = FirebaseFirestore.instance.collection(firestoreCollection);
await crewCollection.doc(userId).update({event.cell!.column.field: event.cell!.value.toString()});
} else {
openDetail(event.cell, event.cell!.column.field, userId, firestoreCollection);
}
},
onChanged: (event) async {
print(mode);
final PlutoRow row = _stateManager!.rows.elementAt(event.rowIdx);
final String userId = row.cells['NAME']!.value.toString();
final String firestoreCollection = type == "captain"
? "CAPTAIN_DATA"
: type == "firstOfficer"
? "FIRST_OFFICER_DATA"
: "CABIN_CREW_DATA";
if (event.column.field == 'NAME' || event.column.field == 'Age' || event.column.field == 'license no') {
CollectionReference crewCollection = FirebaseFirestore.instance.collection(firestoreCollection);
await crewCollection.doc(userId).update({event.column.field: event.value.toString()});
}
},
onLoaded: (PlutoGridOnLoadedEvent event) {
_stateManager = event.stateManager;
_parseColumnRow(data, type);
// _stateManager!.setShowLoading(true);
},
columns: type == 'captain'
? captainColumn
: type == 'firstOfficer'
? firstOfficerColumn
: columns,
rows: type == 'captain' || type == 'firstOfficer' ? pilotRows : plutoRows ?? [],
columnGroups: type == 'captain'
? captainColumnGroup
: type == 'firstOfficer'
? firstOfficerColumnGroup
: null,
);
}
