Fix an NNBD error in the Gallery text form field demo (#79816)

408c52fd · Jason Simmons · GitHub · ab268b4d · 408c52fd
Unverified Commit 408c52fd authored Apr 07, 2021 by Jason Simmons Committed by GitHub Apr 07, 2021
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Showing with 3 additions and 2 deletions

text_form_field_demo.dart ...utter_gallery/lib/demo/material/text_form_field_demo.dart +3 -2

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--- a/dev/integration_tests/flutter_gallery/lib/demo/material/text_form_field_demo.dart
+++ b/dev/integration_tests/flutter_gallery/lib/demo/material/text_form_field_demo.dart
@@ -143,7 +143,7 @@ class TextFormFieldDemoState extends State<TextFormFieldDemo> {
    if (form == null || !_formWasEdited || form.validate())
      return true;
-    return showDialog<bool>(
+    final bool? result = await showDialog<bool>(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
@@ -161,7 +161,8 @@ class TextFormFieldDemoState extends State<TextFormFieldDemo> {
          ],
        );
      },
-    ) as Future<bool>;
+    );
+    return result!;
  }
  @override