xamarin/Xamarin.Forms

Some font icons do not position properly in FormattedString with text

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#9,491 opened on Feb 9, 2020

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a/fonticonhelp wantedp/Androidp/iOS 馃崕t/bug :bug:up-for-grabs

Description

FormattedString.Spans that contain certain font icons do not align on the correct side of text according to the layout of the spans.

Expected Behavior

Font icon to position as per the xaml spans definition in xaml

Actual Behavior

Incorrect icon placement

Basic Information

  • Version with issue: 4.4.0.991640
  • Last known good version: NA
  • IDE: Visual studio community 2019
  • Platform Target Frameworks:
    • iOS: 8.0
    • Android: 10.0
  • Affected Devices: Galaxy Tab A 2016 & iPad 5th generation iOS 11.0 (emulator)

Screenshots

device-2020-02-10-104515

2020-02-10_11-11-40-AM

Reproduction Link

FontPlacement.zip

Contributor guide

Tech stack
csharp
Domain
mobile
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.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic knowledge of Xamarin.Forms layoutUnderstanding of XAML
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Investigate the reproduction project linked to understand the layout of FormattedString with spans containing font icons. Examine the Xamarin.Forms source code for Span positioning logic, particularly in the native renderers for iOS and Android. Check if the issue persists in the latest version of Xamarin.Forms (now .NET MAUI) and consider any related changes.
Some font icons do not position properly in FormattedString with text 路 xamarin/Xamarin.Forms#9491 | Good First Issue