feat: Add keyboardType in CupertinoSearchTextField (#83994)

packages/flutter/lib/src/cupertino/search_field.dart

@@ -108,6 +108,7 @@ class CupertinoSearchTextField extends StatefulWidget {
     this.decoration,
     this.backgroundColor,
     this.borderRadius,
+    this.keyboardType = TextInputType.text,
     this.padding = const EdgeInsetsDirectional.fromSTEB(3.8, 8, 5, 8),
     this.itemColor = CupertinoColors.secondaryLabel,
     this.itemSize = 20.0,
@@ -195,6 +196,11 @@ class CupertinoSearchTextField extends StatefulWidget {
   // https://github.com/flutter/flutter/issues/13914.
   final BorderRadius? borderRadius;
 
+  /// The keyboard type for this search field.
+  ///
+  /// Defaults to TextInputType.text.
+  final TextInputType? keyboardType;
+
   /// Sets the padding insets for the text and placeholder.
   ///
   /// Cannot be null. Defaults to padding that replicates the
@@ -440,6 +446,7 @@ class _CupertinoSearchTextFieldState extends State<CupertinoSearchTextField>
       style: widget.style,
       prefix: prefix,
       suffix: suffix,
+      keyboardType: widget.keyboardType,
       onTap: widget.onTap,
       enabled: widget.enabled,
       suffixMode: widget.suffixMode,

packages/flutter/test/cupertino/search_field_test.dart

@@ -112,6 +112,22 @@ void main() {
     },
   );
 
+  testWidgets('can change keyboard type', (WidgetTester tester) async {
+      await tester.pumpWidget(
+        const CupertinoApp(
+          home: Center(
+            child: CupertinoSearchTextField(
+              keyboardType: TextInputType.number,
+            ),
+          ),
+        ),
+      );
+      await tester.tap(find.byType(CupertinoSearchTextField));
+      await tester.showKeyboard(find.byType(CupertinoSearchTextField));
+      expect((tester.testTextInput.setClientArgs!['inputType'] as Map<String, dynamic>)['name'], equals('TextInputType.number'));
+    },
+  );
+
   testWidgets(
     'can control text content via controller',
     (WidgetTester tester) async {