Expose insetPadding and clipBehavior in SimpleDialog (#73571)

packages/flutter/lib/src/material/dialog.dart

@@ -736,6 +736,8 @@ class SimpleDialog extends StatelessWidget {
     this.backgroundColor,
     this.elevation,
     this.semanticLabel,
+    this.insetPadding = _defaultInsetPadding,
+    this.clipBehavior = Clip.none,
     this.shape,
   }) : assert(titlePadding != null),
        assert(contentPadding != null),
@@ -804,6 +806,12 @@ class SimpleDialog extends StatelessWidget {
   ///    value is used.
   final String? semanticLabel;
 
+  /// {@macro flutter.material.dialog.insetPadding}
+  final EdgeInsets insetPadding;
+
+  /// {@macro flutter.material.dialog.clipBehavior}
+  final Clip clipBehavior;
+
   /// {@macro flutter.material.dialog.shape}
   final ShapeBorder? shape;
 
@@ -890,6 +898,8 @@ class SimpleDialog extends StatelessWidget {
     return Dialog(
       backgroundColor: backgroundColor,
       elevation: elevation,
+      insetPadding: insetPadding,
+      clipBehavior: clipBehavior,
       shape: shape,
       child: dialogChild,
     );

packages/flutter/test/material/dialog_test.dart

@@ -40,11 +40,11 @@ MaterialApp _buildAppWithDialog(Widget dialog, { ThemeData? theme, double textSc
 }
 
 Material _getMaterialFromDialog(WidgetTester tester) {
-  return tester.widget<Material>(find.descendant(of: find.byType(AlertDialog), matching: find.byType(Material)));
+  return tester.widget<Material>(find.descendant(of: find.byType(Dialog), matching: find.byType(Material)));
 }
 
 RenderParagraph _getTextRenderObjectFromDialog(WidgetTester tester, String text) {
-  return tester.element<StatelessElement>(find.descendant(of: find.byType(AlertDialog), matching: find.text(text))).renderObject! as RenderParagraph;
+  return tester.element<StatelessElement>(find.descendant(of: find.byType(Dialog), matching: find.text(text))).renderObject! as RenderParagraph;
 }
 
 const ShapeBorder _defaultDialogShape = RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(4.0)));
@@ -158,7 +158,7 @@ void main() {
     expect(content.text.style, contentTextStyle);
   });
 
-  testWidgets('Custom clipBehavior', (WidgetTester tester) async {
+  testWidgets('AlertDialog custom clipBehavior', (WidgetTester tester) async {
     const AlertDialog dialog = AlertDialog(
       actions: <Widget>[],
       clipBehavior: Clip.antiAlias,
@@ -172,6 +172,20 @@ void main() {
     expect(materialWidget.clipBehavior, Clip.antiAlias);
   });
 
+  testWidgets('SimpleDialog custom clipBehavior', (WidgetTester tester) async {
+    const SimpleDialog dialog = SimpleDialog(
+      children: <Widget>[],
+      clipBehavior: Clip.antiAlias,
+    );
+    await tester.pumpWidget(_buildAppWithDialog(dialog));
+
+    await tester.tap(find.text('X'));
+    await tester.pumpAndSettle();
+
+    final Material materialWidget = _getMaterialFromDialog(tester);
+    expect(materialWidget.clipBehavior, Clip.antiAlias);
+  });
+
   testWidgets('Custom dialog shape', (WidgetTester tester) async {
     const RoundedRectangleBorder customBorder =
       RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(16.0)));