firka/flutter
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Properly guard context access in then clauses (#147935)

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Prepares for a fix to the `use_build_context_synchronously` lint (https://dart-review.googlesource.com/c/sdk/+/365541) that will complain about these unsafe usages.
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Michael Goderbauer 2024-05-07 13:50:46 -07:00 committed by GitHub
parent 458c384fe2
commit 8796562d0a
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1 changed files with 4 additions and 1 deletions
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dev/integration_tests/flutter_gallery/lib/demo/material/dialog_demo.dart
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@ -71,7 +71,7 @@ class DialogDemoState extends State<DialogDemo> {
builder: (BuildContext context) => child!,
)
.then((T? value) { // The value passed to Navigator.pop() or null.
if (value != null) {
if (context.mounted && value != null) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text('You selected: $value'),
));
@ -179,6 +179,9 @@ class DialogDemoState extends State<DialogDemo> {
initialTime: _selectedTime!,
)
.then((TimeOfDay? value) {
if (!mounted) {
return;
}
if (value != null && value != _selectedTime) {
_selectedTime = value;
ScaffoldMessenger.of(context).showSnackBar(SnackBar(