CupertinoAlertDialog fading in/out leaves a temporary black square #154887
Description
Steps to reproduce
- Run the dialog example app on iOS simulator
examples/api/lib/cupertino/route/show_cupertino_dialog.0.dart - Opens and closes the dialog. Notice then fading animation
Expected results
Smooth fading transiting (shot on c56ab6b, the parent of 35b0349)
before.mp4
Actual results
A temporary black square (shot on 35b0349)
after.mp4
Code sample
import 'package:flutter/cupertino.dart';
Widget createAppWithButtonThatLaunchesDialog({
required WidgetBuilder dialogBuilder,
bool? useMaterial3,
}) {
return CupertinoApp(
home: CupertinoPageScaffold(
child: Center(
child: Builder(builder: (BuildContext context) {
return CupertinoButton(
onPressed: () {
showCupertinoDialog<void>(
context: context,
builder: dialogBuilder,
);
},
child: const Text('After PR'),
);
}),
),
),
);
}
void main() => runApp(const ActionSheetApp());
class ActionSheetApp extends StatelessWidget {
const ActionSheetApp({super.key});
@override
Widget build(BuildContext context) {
return createAppWithButtonThatLaunchesDialog(
dialogBuilder: (BuildContext context) {
return CupertinoAlertDialog(
title: const Text('The title'),
actions: <Widget>[
CupertinoDialogAction(
child: Text('Enabled'),
onPressed: () { Navigator.pop(context); },
),
CupertinoDialogAction(
child: Text('Disabled'),
),
],
);
},
);
}
}
Screenshots or Video
No response
Logs
No response
Flutter Doctor output
Doctor output
[!] Flutter (Channel [user-branch], 3.25.0-1.0.pre.287, on macOS 14.6.1 23G93 darwin-arm64, locale en-US)
! Flutter version 3.25.0-1.0.pre.287 on channel [user-branch] at /Users/tongmu/dev/flutter
Currently on an unknown channel. Run `flutter channel` to switch to an official channel.
If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/setup.
! Upstream repository unknown source is not a standard remote.
Set environment variable "FLUTTER_GIT_URL" to unknown source to dismiss this error.
• Framework revision 35b0349294 (3 days ago), 2024-09-06 11:47:11 -0400
• Engine revision c50eb8a650
• Dart version 3.6.0 (build 3.6.0-216.0.dev)
• DevTools version 2.39.0
• If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.
[!] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at /Users/tongmu/Library/Android/sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/to/macos-android-setup for more details.
[!] Xcode - develop for iOS and macOS (Xcode 15.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15E204a
! CocoaPods 1.11.3 out of date (1.13.0 is recommended).
CocoaPods is a package manager for iOS or macOS platform code.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/to/platform-plugins
To update CocoaPods, see https://guides.cocoapods.org/using/getting-started.html#updating-cocoapods
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2023.2)
• Android Studio at /Applications/Android Studio with Blaze.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
[✓] VS Code (version 1.92.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.96.0
[✓] Connected device (5 available)
• Tong’s iPhone 13 (mobile) • 00008110-0005394C3AF8401E • ios • iOS 17.6.1 21G93
• iPhone 15 Pro (mobile) • 0CBCE1F5-E037-4D59-A29D-FE7A5D75F563 • ios • com.apple.CoreSimulator.SimRuntime.iOS-17-4 (simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 14.6.1 23G93 darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 14.6.1 23G93 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 128.0.6613.120
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 3 categories.