Add null safety check before displaying SnackBar (#1866)

1 year ago · 51223a0efa
parent 0083ceb353
commit 51223a0efa
2 changed files with 12 additions and 6 deletions
--- a/experimental/material_3_demo/lib/component_screen.dart
+++ b/experimental/material_3_demo/lib/component_screen.dart
@ -1475,9 +1475,12 @@ class _TimePickersState extends State<TimePickers> {
          );
          setState(() {
            selectedTime = time;
-            ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-              content: Text('Selected time: ${selectedTime!.format(context)}'),
-            ));
+            if (selectedTime != null) {
+              ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+                content:
+                    Text('Selected time: ${selectedTime!.format(context)}'),
+              ));
+            }
          });
        },
        child: const Text(
--- a/material_3_demo/lib/component_screen.dart
+++ b/material_3_demo/lib/component_screen.dart
@ -1475,9 +1475,12 @@ class _TimePickersState extends State<TimePickers> {
          );
          setState(() {
            selectedTime = time;
-            ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-              content: Text('Selected time: ${selectedTime!.format(context)}'),
-            ));
+            if (selectedTime != null) {
+              ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+                content:
+                    Text('Selected time: ${selectedTime!.format(context)}'),
+              ));
+            }
          });
        },
        child: const Text(