TabBar broken animation #162098
Description
Steps to reproduce
TabBar indicator animation is broken.
Expected results
Tab bar indicator should animate without jumping out of selected tab
Actual results
Tab bar indicator is jumping out of selected tab
Code sample
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const TabBarDemo());
}
class TabBarDemo extends StatelessWidget {
const TabBarDemo({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DefaultTabController(
length: 5,
child: Scaffold(
appBar: AppBar(
bottom: const TabBar(
isScrollable: true,
indicatorAnimation: TabIndicatorAnimation.linear,
tabs: [
Tab(icon: Icon(Icons.directions_car)),
Tab(icon: Icon(Icons.directions_transit)),
Tab(icon: Icon(Icons.directions_bike)),
Tab(icon: Icon(Icons.directions_boat)),
Tab(icon: Icon(Icons.directions_off)),
],
),
title: const Text('Tabs Demo'),
),
body: const TabBarView(
children: [
Icon(Icons.directions_car),
Icon(Icons.directions_transit),
Icon(Icons.directions_bike),
Icon(Icons.directions_boat),
Icon(Icons.directions_off),
],
),
),
),
);
}
}Screenshots or Video
Screenshots / Video demonstration
Simulator.Screen.Recording.-.iPhone.15.Plus.-.2025-01-23.at.22.34.01.mp4
Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.27.3, on macOS 15.1.1 24B91 darwin-arm64)
• Flutter version 3.27.3 on channel stable at /Users/igos/fvm/versions/3.27.3
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision c519ee916e (2 days ago), 2025-01-21 10:32:23 -0800
• Engine revision e672b006cb
• Dart version 3.6.1
• DevTools version 2.40.2
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
• Android SDK at /Users/igos/Library/Android/sdk
• Platform android-35, build-tools 35.0.0
• ANDROID_HOME =
/Users/igos/Library/Java/JavaVirtualMachines/temurin-17.0.10/Contents/Home/bin:/opt/homebrew/Cellar/ruby/3.3.5/bin:/opt/homebrew/sbin:/opt/homebrew/bin:/opt/local/bin:/opt/local/s
bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.securit
y.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/Apple/usr/bin:/Users/igos/.orbstack/bin:/Users
/igos/fvm/versions/3.27.3/bin:/Users/igos/Library/Android/sdk/platform-tools/:/Users/igos/Downloads/firebase_tools:/Users/igos/.npm-global/bin:/Users/igos/.pub-cache/bin:/Users/ig
os/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 21.0.4+-12422083-b607.1)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16C5032a
• CocoaPods version 1.16.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2024.2)
• Android Studio at /Applications/Android Studio.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 21.0.4+-12422083-b607.1)
[✓] IntelliJ IDEA Ultimate Edition (version 2024.3.2)
• IntelliJ at /Applications/IntelliJ IDEA.app
• Flutter plugin version 83.0.4
• Dart plugin version 243.23654.44
[✓] Connected device (4 available)
• iPhone 15 Plus (mobile) • 7A74CCA9-9E4F-40AE-84E2-448EFABF3C0B • ios • com.apple.CoreSimulator.SimRuntime.iOS-17-5 (simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 15.1.1 24B91 darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 15.1.1 24B91 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 131.0.6778.265
! Error: Browsing on the local area network for Dev’s iPhone. 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.
• No issues found!Metadata
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Important issues not at the top of the work listIt was better in the past than it is nowflutter/packages/flutter/material repository.flutter/packages/flutter repository. See also f: labels.Issue is closed as already fixed in a newer versionOwned by Design Languages teamTriaged by Design Languages team
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