dotnet/maui

GraphicsView line stroke rendering inconsistent on Android compared to other platforms

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#32,465 opened on Nov 10, 2025

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area-drawinggood first issueplatform/androids/triageds/verifiedt/bug

Description

Description

When using GraphicsView with a custom IDrawable implementation to draw grid lines, the stroke rendering on Android looks visually different compared to other platforms like windows. The lines appear thinner or inconsistent even when the same StrokeSize and color are applied.

Steps to Reproduce

  • Download and run the attached sample project on Android.

BorderSample.zip

Expected Behavior Grid lines should have consistent stroke thickness and appearance across all platforms when using the same StrokeSize and color.

Actual Behavior On Android, the grid lines appear visually thinner or inconsistent.

(See attached screenshot for reference.)

Link to public reproduction project repository

No response

Version with bug

10.0.0-rc.2

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

Contributor guide

Tech stack
csharpandroid
Domain
mobilefrontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic knowledge of .NET MAUIUnderstanding of Android renderer internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Investigate the Android platform renderer for GraphicsView in MAUI. Compare the stroke rendering implementation between Android and other platforms, particularly how StrokeSize is applied in the SkiaSharp or platform specific drawing code. Check for differences in density independent pixel calculations. The attached sample project provides a reproduction case. Look at the GraphicsView source files in the MAUI repository, specifically under src/Core/src/Handlers/GraphicsView/ and platform specific folders.