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samples/experimental/context_menus/lib/image_page.dart

84 lines
2.4 KiB

import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
import 'constants.dart';
import 'context_menu_region.dart';
import 'platform_selector.dart';
class ImagePage extends StatelessWidget {
const ImagePage({
super.key,
required this.onChangedPlatform,
});
static const String route = 'image';
static const String title = 'ContextMenu on an Image';
static const String subtitle =
'A ContextMenu the displays on an Image widget';
static const String url = '$kCodeUrl/image_page.dart';
final PlatformCallback onChangedPlatform;
DialogRoute _showDialog(BuildContext context) {
return DialogRoute<void>(
context: context,
builder: (context) =>
const AlertDialog(title: Text('Image saved! (not really though)')),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text(ImagePage.title),
actions: <Widget>[
PlatformSelector(
onChangedPlatform: onChangedPlatform,
),
IconButton(
icon: const Icon(Icons.code),
onPressed: () async {
if (!await launchUrl(Uri.parse(url))) {
throw 'Could not launch $url';
}
},
),
],
),
body: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
ContextMenuRegion(
contextMenuBuilder: (context, offset) {
return AdaptiveTextSelectionToolbar.buttonItems(
anchors: TextSelectionToolbarAnchors(
primaryAnchor: offset,
),
buttonItems: <ContextMenuButtonItem>[
ContextMenuButtonItem(
onPressed: () {
ContextMenuController.removeAny();
Navigator.of(context).push(_showDialog(context));
},
label: 'Save',
),
],
);
},
child: const SizedBox(
width: 200.0,
height: 200.0,
child: FlutterLogo(),
),
),
Container(height: 20.0),
const Text(
'Right click or long press on the image to see a special menu.',
),
],
),
);
}
}