dotnet/maui

GraphicsView line stroke rendering inconsistent on Android compared to other platforms

Open

#32,465 opened on 2025年11月10日

GitHub で見る
 (1 comment) (0 reactions) (0 assignees)C# (23,245 stars) (1,951 forks)batch import
area-drawinggood first issueplatform/androids/triageds/verifiedt/bug

説明

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

コントリビューターガイド

技術スタック
csharpandroid
領域
mobilefrontend
Issue 種別
bug
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
3
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
half day
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
fresh
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
clear
前提条件
Basic knowledge of .NET MAUIUnderstanding of Android renderer internals
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
45
調査方針
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.