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[Bug][iOS] Label Text is truncated with long text. #15201

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wadebaird opened this issue Mar 3, 2022 · 3 comments
Open

[Bug][iOS] Label Text is truncated with long text. #15201

wadebaird opened this issue Mar 3, 2022 · 3 comments
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s/unverified New report that has yet to be verified t/bug 🐛

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@wadebaird
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wadebaird commented Mar 3, 2022

Description

With long text in a label control, it will eventually start truncating the entire next line of text.

Steps to Reproduce

Here is a complete reproduction: https://github.com/wadebaird/LabelBugApp

  1. Create a new View
  2. Add this xaml:
(If I remove the StackLayout I still get the same behavior it just breaks on a different line).
  1. Load in an iOS simulator

Expected Behavior

All of the text is displayed on the screen.

Actual Behavior

Everything that is on the next row from " and some more and some more to get it." does not display on the screen.
If you add 2 more characters to the end of the string it will show the text. If you add more words that move onto the next line, then those words will not be shown onto the screen until you reach the entire width of the screen.

Basic Information

  • Version with issue: Xamarin.Forms 5.0.0.2196 .NetStandard 2.0.3
  • Last known good version:
  • Platform Target Frameworks:
    • iOS: Xamarin.iOS.dll 15.6.0.3
    • Android: N/A - appears to work in Android
    • UWP: N/A
  • Android Support Library / AndroidX Version:
  • NuGet Packages: .NetStandardLibrary 2.0.3 and Xamarin.Forms 5.0.0.2196
  • Affected Devices:
    Simulator: iPhone 13 Pro 15.2 w/ the Text settings directly in the middle.
    Real device: iPhone 12 Pro 15.3.1 w/ the same Text settings.

Environment

Show/Hide Visual Studio info Microsoft Visual Studio Community 2022 Version 17.1.0 VisualStudio.17.Release/17.1.0+32210.238 Microsoft .NET Framework Version 4.8.04084

Installed Version: Community

Visual C++ 2022 00482-90000-00000-AA137
Microsoft Visual C++ 2022

.NET Core Debugging with WSL 1.0
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ADL Tools Service Provider 1.0
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ASA Service Provider 1.0

ASP.NET and Web Tools 2019 17.1.358.51495
ASP.NET and Web Tools 2019

ASP.NET Web Frameworks and Tools 2019 17.1.358.51495
For additional information, visit https://www.asp.net/

Azure App Service Tools v3.0.0 17.1.358.51495
Azure App Service Tools v3.0.0

Azure Data Lake Tools for Visual Studio 2.6.5000.0
Microsoft Azure Data Lake Tools for Visual Studio

Azure Functions and Web Jobs Tools 17.1.358.51495
Azure Functions and Web Jobs Tools

Azure Stream Analytics Tools for Visual Studio 2.6.5000.0
Microsoft Azure Stream Analytics Tools for Visual Studio

C# Tools 4.1.0-5.22109.6+0c82c4114a4e4b8b723b915eee3b13261db6717f
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Common Azure Tools 1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Cookiecutter 17.0.21344.1
Provides tools for finding, instantiating and customizing templates in cookiecutter format.

Extensibility Message Bus 1.2.6 (master@34d6af2)
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Fabric.DiagnosticEvents 1.0
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IncrediBuild Build Acceleration 1.6.0.2
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Microsoft Azure Hive Query Language Service 2.6.5000.0
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Microsoft Azure Service Fabric Tools for Visual Studio 17.0
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Microsoft Azure Stream Analytics Language Service 2.6.5000.0
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Microsoft Azure Tools for Visual Studio 2.9
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Microsoft JVM Debugger 1.0
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Microsoft Library Manager 2.1.161+abc97ecc7d.RR
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Microsoft Visual C++ Wizards 1.0
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Microsoft Visual Studio Tools for Containers 1.2
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Microsoft Visual Studio VC Package 1.0
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Mono Debugging for Visual Studio 17.1.10 (65f98f5)
Support for debugging Mono processes with Visual Studio.

Node.js Tools 1.5.40105.1 Commit Hash:1822ee94b29c6cf748a19825f14cc26d30b0b871
Adds support for developing and debugging Node.js apps in Visual Studio

NuGet Package Manager 6.1.0
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Office Developer Tools for Visual Studio 17.0.32009.00
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Python - Django support 17.0.21344.1
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Python - Profiling support 17.0.21344.1
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Python with Pylance 17.0.21344.1
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Razor (ASP.NET Core) 17.0.0.2206201+62a2c1d6162f828801565a7ca26d9d48b810a05b
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SQL Server Data Tools 17.0.62201.12090
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Syntax Visualizer 1.0
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ToolWindowHostedEditor 1.0
Hosting json editor into a tool window

TypeScript Tools 17.0.1229.2001
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Visual Basic Tools 4.1.0-5.22109.6+0c82c4114a4e4b8b723b915eee3b13261db6717f
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Visual F# Tools 17.1.0-beta.21610.4+07b5673e4f2fa7630e78abe37f16b372353a7242
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Visual Studio Code Debug Adapter Host Package 1.0
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Visual Studio Container Tools Extensions 1.0
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Visual Studio IntelliCode 2.2
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Visual Studio Tools for Containers 1.0
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VisualStudio.DeviceLog 1.0
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VisualStudio.Foo 1.0
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VisualStudio.Mac 1.0
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Workflow Manager Tools 1.0 1.0
This package contains the necessary Visual Studio integration components for Workflow Manager.

Xamarin 17.1.0.309 (d17-1@3f96c58)
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Xamarin Designer 17.1.0.87 (remotes/origin/main@d50fb5635)
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Xamarin Templates 17.1.8 (590388a)
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Xamarin.Android SDK 12.2.0.4 (d17-1/19b97b7)
Xamarin.Android Reference Assemblies and MSBuild support.
Mono: a5d1934
Java.Interop: xamarin/java.interop/d17-1@7ac33610
ProGuard: Guardsquare/proguard@912d149
SQLite: xamarin/sqlite@0893b3b
Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-1@db125a7

Xamarin.iOS and Xamarin.Mac SDK 15.6.0.3 (caa899d24)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.

Build Logs

N/A

Screenshots

2022-03-03_10-37-01-AM
2022-03-03_10-55-36-AM

Reproduction Link

https://github.com/wadebaird/LabelBugApp

Workaround

I cannot find a workaround.

@wadebaird wadebaird added s/unverified New report that has yet to be verified t/bug 🐛 labels Mar 3, 2022
@somoreingold
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somoreingold commented Mar 15, 2022

@wadebaird You're not alone in this one. There are many similar reports, one of which has made into the service release schedule last autumn: #13683 Hopefully it's still on the radar, but I've since refactored my code to avoid the issue.

@wadebaird
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Thanks @somoreingold. How did you refactor your code to avoid it? I haven't found a work around.

@somoreingold
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"Workaround" is a strong word for what I did :) #13683 (comment) However it was either that, or digging deeper into Xamarin core code for an (unpredictable) amount of time, to try to make a PR that could be eventually merged. My team's launch constraints wouldn't allow for that timeline since Label text wrapping is a pretty crucial feature for our particular apps, and the bug was happening in a lot of important places.

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