xamarin/Xamarin.Forms

[Bug] CollectionView Layout issues for RowDefinition Height="Auto"

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#6,124 opened on May 8, 2019

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a/collectionviewe/5 :clock5:help wantedinactivep/iOS 🍎t/bug :bug:up-for-grabs

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Description

Description

CollectionView complex variable height scenarios sometimes have layout issues.

Steps to Reproduce

Run the attached sample project from either iOS simulator or device.

  • Version with issue: 4.0.0 Pre Release 10
  • IDE: VS Mac
  • Platform Target Frameworks:
    • iOS: 12.2
  • Nuget Packages: 4.0.0 Pre Release 10
  • Affected Devices: All

Screenshots

LayoutIssues

Reproduction Link

CollectionViewChallenge

Contributor guide

Research direction
Reproduce the bug using the provided sample project and inspect the CollectionView layout logic for variable height items. Focus on the RowDefinition Height="Auto" behavior and any issues with item sizing or recycling.
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.
Half day
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
C#Xamarin.Forms
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40