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null safety

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This commit is contained in:
Phaung Phaung
2021-09-13 09:52:36 +06:30
parent a102369daf
commit 192d81e426
4 changed files with 25 additions and 18 deletions
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16
lib/pages/delivery/model/delivery_model.dart
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@@ -12,9 +12,9 @@ import 'package:logging/logging.dart';
class DeliveryModel extends BaseModel {
final log = Logger('DeliveryModel');
List<Carton> get cartons =>
_selectedIndex == 1 ? _cartons : List<Carton>.from(_delivered.values);
_selectedIndex == 1 ? _cartons : List<Carton>.from(_delivered?.values ?? []);
late Paginator _delivered;
Paginator? _delivered;
int _selectedIndex = 1;
bool isLoading = false;
List<Carton> _cartons = [];
@@ -31,9 +31,9 @@ class DeliveryModel extends BaseModel {
_selectedIndex = 1;
_loadCartons();
if (_delivered != null) _delivered.close();
if (_delivered != null) _delivered!.close();
_delivered = _getDelivered();
_delivered.load();
_delivered!.load();
}
Future<void> _loadCartons() async {
@@ -82,10 +82,10 @@ class DeliveryModel extends BaseModel {
}
Future<void> loadMore() async {
if (_delivered.ended || _selectedIndex == 1) return;
if (_delivered!.ended || _selectedIndex == 1) return;
isLoading = true;
notifyListeners();
await _delivered.load(onFinished: () {
await _delivered!.load(onFinished: () {
isLoading = false;
notifyListeners();
});
@@ -94,7 +94,7 @@ class DeliveryModel extends BaseModel {
Future<void> refresh() async {
if (_selectedIndex == 1) return;
await _delivered.refresh(onFinished: () {
await _delivered!.refresh(onFinished: () {
notifyListeners();
});
}
@@ -106,7 +106,7 @@ class DeliveryModel extends BaseModel {
@override
logout() async {
if (listener != null) await listener!.cancel();
if (_delivered != null) _delivered.close();
if (_delivered != null) _delivered!.close();
_cartons = [];
}