dotnet/maui

[Enhancement] Label Autofit Font

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#10,884 opened on Oct 25, 2022

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Description

Description

Add new properties to the label control to enable auto-scaling font based on available width

A PR was done in Xamarin.Forms, but was closed as its a new feature - https://github.com/xamarin/Xamarin.Forms/pull/7981

Public API Changes

  • (enum) AutoFitTextMode Label.AutofitText{ get; set; } //Bindable Property
  • double Label.MaxAutoFitSize { get; set;} //Bindable Property
  • double Label.MinAutoFitSize {get; set;} //Bindable Property

Intended Use-Case

When you want to scale font based on the given space

Contributor guide

Tech stack
csharp
Domain
frontendmobiledesktop
Issue type
feature
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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
C# basics.NET MAUI basicsBindableProperty
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
The issue requests adding AutoFitText properties to the Label control. Review the linked Xamarin.Forms PR (#7981) for a prior implementation attempt. The implementation involves creating an AutoFitTextMode enum and two double properties (MaxAutoFitSize, MinAutoFitSize) as BindableProperties, then modifying the Label's layout logic to compute font size based on available width. Key files to examine are Label.cs, possibly LabelHandler or platform specific renderers. Testing should cover iOS, Android, and Windows platforms.