When the width of the widget is less than 49, scrollHeadMaxExtendetX will be less than 1, resulting in an error.

[zhazhazsy]

Bug description

double.clamp (dart:core-patch/double.dart:232:7)
ScrollHeadOverlayState._updateScrollHeadPosition (package:syncfusion_flutter_pdfviewer/src/control/scroll_head_overlay.dart:948:75)

When the width of the widget is less than 49, scrollHeadMaxExtendetX will be less than 1, resulting in an error.

Steps to reproduce

Container(
width: 40,
height: 40,
child: SfPdfViewer.network(...)
),

Code sample

Container(
width: 40,
height: 40,
child: SfPdfViewer.network(...)
),

Screenshots or Video

Container(
width: 40,
height: 40,
child: SfPdfViewer.network(...)
),

Stack Traces

#0 double.clamp (dart:core-patch/double.dart:232:7)
I/flutter (19554): #1 ScrollHeadOverlayState._updateScrollHeadPosition (package:syncfusion_flutter_pdfviewer/src/control/scroll_head_overlay.dart:948:75)
I/flutter (19554): #2 ScrollHeadOverlayState.build. (package:syncfusion_flutter_pdfviewer/src/control/scroll_head_overlay.dart:319:7)
I/flutter (19554): #3 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1442:15)
I/flutter (19554): #4 SchedulerBinding.handleDrawFrame (pack
I/flutter (19554): age:flutter/src/scheduler/binding.dart:1369:11)
I/flutter (19554): #5 SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1208:5)
I/flutter (19554): #6 _rootRun (dart:async/zone.dart:1525:13)
I/flutter (19554): #7 _CustomZone.run (dart:async/zone.dart:1422:19)
I/flutter (19554): #8 _CustomZone.runGuarded (dart:async/zone.dart:1321:7)
I/flutter (19554): #9 _invoke (dart:ui/hooks.dart:318:10)
I/flutter (19554): #10 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:428:5)
I/flutter (19554): #11 _drawFrame (dart:ui/hooks.dart:288:31)

On which target platforms have you observed this bug?

Android

Flutter Doctor output

[√] Flutter (Channel stable, 3.29.0, on Microsoft Windows [版本 10.0.26100.4652], locale zh-CN)
[√] Windows Version (Windows 11 or higher, 24H2, 2009)
[!] Android toolchain - develop for Android devices (Android SDK version 36.0.0)
X cmdline-tools component is missing
Run path/to/sdkmanager --install "cmdline-tools;latest"
See https://developer.android.com/studio/command-line for more details.
X Android license status unknown.
Run flutter doctor --android-licenses to accept the SDK licenses.
See https://flutter.dev/to/windows-android-setup for more details.
[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 Windows apps
X Visual Studio not installed; this is necessary to develop Windows apps.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2025.1.1)
[√] Connected device (3 available)
[√] Network resources

[immankumarsync]

@zhazhazsy, we were able to replicate the reported issue where an ArgumentError occurs when an extremely small size is allocated to the SfPdfViewer widget.

However, could you please share the use case or scenario where the SfPdfViewer is intended to be used with such a small size?

[zhazhazsy]

My app scenario involves displaying PDF thumbnails first, and upon clicking, presenting the full content of the PDF.

[immankumarsync]

@zhazhazsy, We understand that you are referring to the first page of the PDF document as the thumbnail, which is displayed as a preview of the PDF. Currently, you are using the SfPdfViewer widget for this purpose.

Could you please try the method below to generate the thumbnail instead of using the SfPdfViewer widget itself and confirm us whether the solution meets your requirement?
#1879 (comment)