CupertinoTextMagnifier class

This sample demonstrates how to use CupertinoTextMagnifier.

import 'package:cupertino_ui/cupertino_ui.dart';

/// Flutter code sample for [CupertinoTextMagnifier].

void main() => runApp(const CupertinoTextMagnifierApp());

class CupertinoTextMagnifierApp extends StatelessWidget {
  const CupertinoTextMagnifierApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const CupertinoApp(
      theme: CupertinoThemeData(brightness: .light),
      home: CupertinoTextMagnifierExampleApp(),
    );
  }
}

class CupertinoTextMagnifierExampleApp extends StatefulWidget {
  const CupertinoTextMagnifierExampleApp({super.key});

  @override
  State<CupertinoTextMagnifierExampleApp> createState() =>
      _CupertinoTextMagnifierExampleAppState();
}

class _CupertinoTextMagnifierExampleAppState
    extends State<CupertinoTextMagnifierExampleApp> {
  final MagnifierController _magnifierController = MagnifierController();
  final TextEditingController _textEditingController = TextEditingController(
    text: 'Hello world!',
  );

  @override
  Widget build(BuildContext context) {
    return CupertinoPageScaffold(
      navigationBar: const CupertinoNavigationBar(
        middle: Text('CupertinoTextMagnifier Sample'),
      ),
      child: Padding(
        padding: const .symmetric(horizontal: 48.0),
        child: Center(
          child: CupertinoTextField(
            magnifierConfiguration: TextMagnifierConfiguration(
              magnifierBuilder:
                  (_, _, ValueNotifier<MagnifierInfo> magnifierInfo) {
                    return CupertinoTextMagnifier(
                      controller: _magnifierController,
                      magnifierInfo: magnifierInfo,
                    );
                  },
            ),
            controller: _textEditingController,
          ),
        ),
      ),
    );
  }

  @override
  void dispose() {
    _textEditingController.dispose();
    super.dispose();
  }
}