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Instagram/IGListKit

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instagram.github.io/IGListKit↗

IGListKit

IGListKit is a data-driven list manager and framework for iOS that decouples data models from cell logic. It serves as a wrapper for collection views, using a system of section controllers to map specific data model types to independent objects that manage the logic and sizing for list sections.

The project features a diffing algorithm library that calculates the minimal set of changes between two data collections. By using unique identifiers and equality tracking, it identifies inserts, deletes, and moves to trigger animated updates instead of full interface reloads.

The framework covers a broad range of capabilities including the rendering of diverse content types within a single list, the integration of supplementary views, and the monitoring of cell display events. It also includes proximity monitoring to notify controllers when they enter a range around the viewport to allow for proactive asset pre-loading.

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Features

  • CollectionView Wrappers - Provides a data-driven wrapper for UICollectionView that decouples data models from cell logic using section controllers.
  • List Interface Frameworks - Offers a data-driven framework for building complex, performant scrolling lists and managing cell logic in iOS applications.
  • Data Diffing Algorithms - Identify inserts, deletes, and moves between collections to prevent unnecessary user interface refreshes.
  • Diffing Algorithms - Implements a high-performance linear-time algorithm to identify inserts, deletes, and moves between datasets.
  • Algebraic Data Type Layouts - Decouples data models from cell logic to render diverse content types within a single list.
  • Data-Driven List Managers - Decouples data models from cell logic using dedicated section controllers for each content type.
  • UI - Maps data models to a UICollectionView to enable the rendering of complex lists with diverse content types.
  • Diffing-Based State Updates - Calculates the minimal set of changes between two data collections to trigger animated updates instead of full reloads.
  • Dynamic Feed Renderers - Provides a system for mapping various data models to independent section controllers to render diverse content types in a single feed.
  • Heterogeneous List Rendering - Maps different data models to dedicated section controllers to display a single collection containing multiple content types.
  • Reactive List Updates - Automatically updates a collection view based on data set differences without manual reloads.
  • Collection View Optimizers - Reduces main thread lag by calculating the minimal set of data changes required to update the user interface.
  • Reactive State Synchronization - Updates the user interface automatically when data sets change without requiring manual reload methods.
  • Section Controllers - Maps specific data model types to independent controller objects that manage the logic and sizing for list sections.
  • Diffing Rule Definitions - Allows establishing custom equality and identity rules for data models to control item updates and movement.
  • Referential Equality Checking - Uses unique identifiers and referential equality checks to detect if objects have moved or changed state.
  • Cell Visibility Monitoring - Tracks when section controllers and their cells enter or leave the visible screen area.
  • Content Sectioning - Organizes long-form content into distinct sections mapped to independent controllers for custom rendering.
  • Viewport Visibility Observers - Tracks when section controllers enter a range around the viewport to trigger pre-loading of assets.
  • Viewport-Based Preloading - Notifies controllers when they enter a proximity range around the viewport to pre-load assets.
  • Data Source Management - Data-driven UICollectionView framework for fast lists.
13,070 stars·1,540 forks·Objective-C·MIT·12 views

Star history

Star history chart for instagram/iglistkitStar history chart for instagram/iglistkit

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Projects sharing features with IGListKit

These projects share indexed features with IGListKit. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
  • afarkas/lazysizesaFarkas avatar

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    lazysizes is a JavaScript lazy loading library and DOM visibility observer that defers the loading of images and iframes until they enter the browser viewport. It functions as a responsive image optimizer and SEO friendly asset loader designed to reduce initial page load times while maintaining search engine visibility. The project calculates optimal image sizes and handles srcset and picture elements to deliver the most appropriate asset based on device resolution and layout. It includes a mechanism for low-quality image placeholders and applies CSS classes during the loading process to trig

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  • jamztang/csstickyheaderflowlayoutjamztang avatar

    jamztang/CSStickyHeaderFlowLayout

    5,041View on GitHub↗

    CSStickyHeaderFlowLayout is a specialized layout wrapper for UICollectionView on iOS. It provides a sticky header list component where section headers remain pinned to the top of the screen during scrolling. The project implements parallax header effects, allowing background images to move at a different speed than foreground content to create depth. It also includes animated header images that expand or collapse based on the user's scroll position. The layout manages coordinate-based view repositioning and dynamic frame calculations to handle visual transitions. It utilizes offset-based scr

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  • cewendel/swtableviewcellCEWendel avatar

    CEWendel/SWTableViewCell

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    SWTableViewCell is a UIKit component and library for adding interactive swipe-to-reveal action buttons to table view cells in iOS applications. It functions as a swipe action manager and a specialized interface element designed to handle touch gestures and sliding animations for list items. The library features a layout mechanism that automatically scales the size of action buttons to fit available screen space based on the number of buttons added. It uses a system to detect touch events that trigger specific actions or slide cells back to their original positions. The system manages the spa

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  • asyncbanana/microdiffAsyncBanana avatar

    AsyncBanana/microdiff

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    Microdiff is a utility library for calculating structural differences between two JavaScript objects or arrays. It identifies additions, removals, and modifications by performing a deep comparison of nested data structures, providing a granular list of changes between object states. The library is built with a zero-dependency implementation that relies exclusively on native language primitives to maintain a minimal memory footprint. It includes built-in circular reference handling, which tracks object identities during traversal to prevent infinite loops when processing self-referencing data

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Frequently asked questions

What does instagram/iglistkit do?

IGListKit is a data-driven list manager and framework for iOS that decouples data models from cell logic. It serves as a wrapper for collection views, using a system of section controllers to map specific data model types to independent objects that manage the logic and sizing for list sections.

What are the main features of instagram/iglistkit?

The main features of instagram/iglistkit are: CollectionView Wrappers, List Interface Frameworks, Data Diffing Algorithms, Diffing Algorithms, Algebraic Data Type Layouts, Data-Driven List Managers, UI, Diffing-Based State Updates.

Which projects share features with instagram/iglistkit?

Projects with overlapping indexed features include: afarkas/lazysizes — lazysizes is a JavaScript lazy loading library and DOM visibility observer that defers the loading of images and… cewendel/swtableviewcell — SWTableViewCell is a UIKit component and library for adding interactive swipe-to-reveal action buttons to table view… jamztang/csstickyheaderflowlayout — CSStickyHeaderFlowLayout is a specialized layout wrapper for UICollectionView on iOS. It provides a sticky header list… didi/mpx — MPX is a cross-platform framework designed to build applications for multiple mini-program ecosystems and the web from… ammarahm-ed/react-native-mmkv-storage — This project provides a high-performance key-value storage solution for mobile applications, utilizing memory-mapped… asyncbanana/microdiff — Microdiff is a utility library for calculating structural differences between two JavaScript objects or arrays. It…