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[flutter_adaptive_scaffold] Weird line appears between body and secondary body when background color is applied. #125611

@Harishwarrior

Description

@Harishwarrior

Is there an existing issue for this?

Steps to reproduce

Run the Code sample.

Expected results

The line between pages (body and secondary body) should not appear.

Actual results

If there is a color applied in background a weird line shows between two pages (body and secondary body)

Code sample

Code sample

The issue can be replicated via the below example code.

import 'package:flutter/material.dart';
import 'package:flutter_adaptive_scaffold/flutter_adaptive_scaffold.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'AdaptiveNavigation weird line',
      home: AdaptiveNavigation(),
    );
  }
}

class AdaptiveNavigation extends StatefulWidget {
  const AdaptiveNavigation({super.key});

  @override
  State<StatefulWidget> createState() => _AdaptiveNavigationState();
}

class _AdaptiveNavigationState extends State<AdaptiveNavigation> {
  @override
  Widget build(BuildContext context) {
    return Container(
      /// If there is a color applied in background a weird line shows between two pages
      /// also the transition looks weird also
      color: Colors.black,

      child: AdaptiveLayout(
        // ratio of body and secondaryBody
        // refer: https://pub.dev/packages/flutter_adaptive_scaffold
        bodyRatio: 0.45,
        body: SlotLayout(
          config: <Breakpoint, SlotLayoutConfig>{
            Breakpoints.standard: SlotLayout.from(
              key: const Key('body'),
              builder: (_) => const Scaffold(
                backgroundColor: Color(0xFFF6F6F6),
                body: Center(child: Text('body')),
              ),
            ),
          },
        ),
        // this occupies only the right half of the screen in tablet-landscape view
        secondaryBody: SlotLayout(
          config: <Breakpoint, SlotLayoutConfig>{
            // shows in tablet-landscape view
            Breakpoints.large: SlotLayout.from(
              key: const Key('secondayBody'),
              builder: (_) => const Scaffold(
                backgroundColor: Color(0xFFF6F6F6),
                body: Center(child: Text('secondary body')),
              ),
            )
          },
        ),
      ),
    );
  }
}

Screenshots or Video

Screenshots / Video demonstration

image

Logs

No response

Flutter Doctor output

Doctor output
[√] Flutter (Channel stable, 3.7.12, on Microsoft Windows [Version 10.0.22621.1635], locale en-US)
    • Flutter version 3.7.12 on channel stable at C:\Users\Harish\fvm\versions\stable
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4d9e56e694 (9 days ago), 2023-04-17 21:47:46 -0400    • Engine revision 1a65d409c7
    • Dart version 2.19.6
    • DevTools version 2.20.1

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 33.0.2)
    • Android SDK at C:\Users\Harish\AppData\Local\Android\sdk
    • Platform android-33-ext4, build-tools 33.0.2
    • Java binary at: C:\Program Files\Android\Android Studio1\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-b2043.56-9586694)
    • All Android licenses accepted.

[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components

[!] Android Studio (version 2022.1)
    • Android Studio at C:\Program Files\Android\Android Studio
    • 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
    X Unable to determine bundled Java version.
    • Try updating or re-installing Android Studio.

[√] Android Studio (version 2022.2)
    • Android Studio at C:\Program Files\Android\Android Studio1
    • 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 17.0.6+0-b2043.56-9586694)

[√] VS Code (version 1.77.3)
    • VS Code at C:\Users\Harish\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.62.0

[√] Connected device (3 available)
    • SM T550 (mobile)  • 192.168.1.44:5555 • android-arm    • Android 7.1.1 (API 25)
    • Windows (desktop) • windows           • windows-x64    • Microsoft Windows [Version 10.0.22621.1635]
    • Edge (web)        • edge              • web-javascript • Microsoft Edge 112.0.1722.58

[√] HTTP Host Availability
    • All required HTTP hosts are available

! Doctor found issues in 3 categories.

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    P3Issues that are less important to the Flutter projectfound in release: 3.10Found to occur in 3.10found in release: 3.7Found to occur in 3.7has reproducible stepsThe issue has been confirmed reproducible and is ready to work onp: flutter_adaptive_scaffoldThe flutter_adaptive_scaffold packagepackageflutter/packages repository. See also p: labels.r: invalidIssue is closed as not validteam-ecosystemOwned by Ecosystem teamtriaged-ecosystemTriaged by Ecosystem team

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