dotnet/maui

GraphicsView line stroke rendering inconsistent on Android compared to other platforms

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#32,465 创建于 2025年11月10日

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

描述

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

贡献者指南

技术栈
csharpandroid
领域
mobilefrontend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Basic knowledge of .NET MAUIUnderstanding of Android renderer internals
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
45
研究方向
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.