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flutter-listview-viewport-gotchas

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Debug ListView viewport recycling patterns in Flutter.

Software Engineering#debugging#flutter#viewport#listview#didupdatewidget#scrollcontroller
AuthorImL1s
Version1.0.0
Installs0

System Documentation

What problem does it solve?

ListView, CustomScrollView, and GridView recycle off-screen widgets, causing disposed State and reinitialization after scrolling, which can lead to UI inconsistencies or missing updates.

Core Features & Use Cases

  • Debug patterns for didUpdateWidget not called, ScrollController hasClients false, and widgets being disposed during viewport recycling.
  • Guidance for preventing state loss when scrolling, including keep-alive strategies and safe scrolling to the selected item.
  • Real-world debugging scenarios that show how to reproduce and fix common viewport recycling issues in Flutter apps.

Quick Start

Open a Flutter project and apply the viewport debugging patterns to diagnose and fix ListView/CustomScrollView recycling issues.

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: flutter-listview-viewport-gotchas
Download link: https://github.com/ImL1s/flutter-claude-skills/archive/main.zip#flutter-listview-viewport-gotchas

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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