49 lines
1.1 KiB
Dart
49 lines
1.1 KiB
Dart
import 'package:flutter/material.dart';
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class CustomWillPopScope extends StatelessWidget {
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const CustomWillPopScope(
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this.context, {
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super.key,
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required this.child,
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this.ignore = false,
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});
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final Widget child;
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final BuildContext context;
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/// If [ignore] is true, WillPopScope will automatically pop.
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final bool ignore;
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Future<bool> _onWillPop() {
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if (ignore) {
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return Future<bool>(
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() {
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return true;
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},
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);
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}
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return showDialog<bool>(
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context: context,
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builder: _willPopDialogBuilder,
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).then((value) => value ?? false);
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}
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@override
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Widget build(BuildContext context) {
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return WillPopScope(onWillPop: _onWillPop, child: child);
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}
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}
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Widget _willPopDialogBuilder(context) => AlertDialog(
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title: const Text('Leave the page?'),
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content: const Text('Progress will be lost.'),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(false),
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child: const Text('cancel')),
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TextButton(
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onPressed: () => Navigator.of(context).pop(true),
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child: const Text('leave')),
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],
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);
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