dotnet/maui

[MAC/iOS] Contents are blurred with scaling

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#9,420 opened on Aug 14, 2022

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area-core-platformgood first issuelegacy-area-controlsplatform/ioss/triageds/verifiedt/bug

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Description

Description

When I try to scale a content (View) using the "Scale" property, the contents are appeared blurred with scaling in MAC and iOS. This blur issue occurs in all of the views.

Please refer to the screenshot of the text in a label after 4x scaling.

Note: In Android and WIndows, the contents are not blurred with scaling Please find the expected result of the same in the Windows platform in the below screenshot.

Steps to Reproduce

  1. Run the attached sample. MauiApp26.zip
  2. Click the Button "Scale 2x". It will scale the content with the factor 2. View.Scale*=2;
  3. Check the quality of the text content.

Version with bug

6.0.486 (current)

Last version that worked well

Unknown/Other

Affected platforms

iOS, macOS

Affected platform versions

iOS 15

Did you find any workaround?

No

Relevant log output

NA

Contributor guide

Research direction
Investigate how the View.Scale property is rendered on macOS/iOS compared to Windows/Android. Look at platform specific rendering code in the MAUI repository, particularly in the handlers for macOS and iOS. Check if there is a missing call to set `CALayer` properties like `shouldRasterize` or `allowsEdgeAntialiasing`.
Tech stack
csharp
Domain
frontendmobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git.NET MAUI
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65