Draggable Feedback is positioned incorrectly when the Overlay is scaled #145639
Description
Steps to reproduce
- Wrap your entire
MaterialAppin a transform (Transform.scale(scale: 0.5, child: ...)works well) - Try out any
Draggable
Expected results
The Draggable feedback should still be attached to the pointer, as if the App wasn't transformed at all.
Actual results
The feedback is offset, because it is positioned in the respective overlay using global coordinates.
Code sample
Code sample
import 'dart:math';
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return ColoredBox(
color: Colors.grey[100]!,
child: Transform.rotate(
angle: 0.1 * pi,
child: Transform.scale(
scale: 0.5,
child: Material(
color: Colors.grey[900],
elevation: 8,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(
25,
),
),
child: Padding(
padding: const EdgeInsets.all(50.0),
child: MaterialApp(
title: 'Flutter Demo',
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
),
),
),
),
),
);
}
}
class MyHomePage extends StatefulWidget {
final String title;
const MyHomePage({
super.key,
required this.title,
});
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Draggable(
child: FlutterLogo(),
feedback: FlutterLogo(),
),
Text("Drag this Logo"),
],
),
),
);
}
}
Screenshots or Video
Screenshots / Video demonstration
Screenshot.2024-03-23.at.19.14.43.mp4
Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
[!] Flutter (Channel master, 3.21.0-13.0.pre.24, on macOS 14.3.1 23D60 darwin-arm64, locale en-DE)
• Flutter version 3.21.0-13.0.pre.24 on channel master at /Users/tim/Developer/whynotmake.it/flutter
! Upstream repository https://github.com/whynotmake-it/flutter.git is not a standard remote.
Set environment variable "FLUTTER_GIT_URL" to https://github.com/whynotmake-it/flutter.git to dismiss this error.
• Framework revision 73e78fd97c (4 hours ago), 2024-03-23 10:18:25 -0400
• Engine revision 689ea4b10b
• Dart version 3.4.0 (build 3.4.0-265.0.dev)
• DevTools version 2.34.0-dev.12
• 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 31.0.0-rc2)
• Android SDK at /Users/tim/Library/Android/sdk
• Platform android-33, build-tools 31.0.0-rc2
• Java binary at: /Library/Java/JavaVirtualMachines/zulu-11.jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment Zulu11.54+25-CA (build 11.0.14.1+1-LTS)
• All Android licenses accepted.
[!] Xcode - develop for iOS and macOS (Xcode 15.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15E204a
✗ Unable to get list of installed Simulator runtimes.
• CocoaPods version 1.13.0
[✗] Chrome - develop for the web (Cannot find Chrome executable at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[!] Android Studio (not installed)
• Android Studio not found; download from https://developer.android.com/studio/index.html
(or visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions).
[✓] VS Code (version 1.87.0-insider)
• VS Code at /Applications/Visual Studio Code - Insiders.app/Contents
• Flutter extension version 3.84.0
[✓] Connected device (2 available)
• macOS (desktop) • macos • darwin-arm64 • macOS 14.3.1 23D60 darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 14.3.1 23D60 darwin-arm64
! Error: Browsing on the local area network for iPhone von mir. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 4 categories.