6311bbcfb4
Summary: Another source-of-truth inconsistency issue. I kept getting this assertion T65423827 task. It turned out the the root cause is that we use the `_viewSectionControllerMap` to keep track of the mapping between view and section controller. Which is dangerous. Because the UICV's source of truth is the `sectionMap`, now we are adding another source of truth between view <-> sectionController to be `_viewSectionControllerMap`, this is just waiting for bugs to happen. We should always refers to sectionMap as the source of truth for everything here: since we can get the section index, we can replace all the `-sectionControllerForView` to use `-sectionControllerForSection:` instead, which is safer. Multiple source of truth is the bug for this unexpected assertion. Once we can cleanup this, then we dont need to use that weird: `- (void)mapView:(UICollectionReusableView *)view toSectionController:(IGListSectionController *)sectionController` API which we might forget to map, that can cause bug. Reviewed By: elfredpagan Differential Revision: D24173911 fbshipit-source-id: 6138cafc0b382fc569d17b14b13a6b50d85d342d |
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| .github | ||
| docs | ||
| Examples | ||
| Guides | ||
| IGListKit.xcodeproj | ||
| IGListKit.xcworkspace | ||
| Pods | ||
| remodel-plugin | ||
| Resources | ||
| scripts | ||
| Source | ||
| Tests | ||
| .gitignore | ||
| .slather.yml | ||
| .travis.yml | ||
| CHANGELOG.md | ||
| CODE_OF_CONDUCT.md | ||
| Dangerfile | ||
| Gemfile | ||
| Gemfile.lock | ||
| IGListDiffKit.podspec | ||
| IGListKit.podspec | ||
| IGListSwiftKit.podspec | ||
| LICENSE.md | ||
| Package.swift | ||
| Podfile | ||
| Podfile.lock | ||
| README.md | ||
| README.zh.md | ||
A data-driven UICollectionView framework for building fast and flexible lists.
| Main Features | |
|---|---|
| 🙅 | Never call performBatchUpdates(_:, completion:) or reloadData() again |
| 🏠 | Better architecture with reusable cells and components |
| 🔠 | Create collections with multiple data types |
| 🔑 | Decoupled diffing algorithm |
| ✅ | Fully unit tested |
| 🔍 | Customize your diffing behavior for your models |
| 📱 | Simply UICollectionView at its core |
| 🚀 | Extendable API |
| 🐦 | Written in Objective-C with full Swift interop support |
IGListKit is built and maintained with ❤️ by Instagram engineering.
We use the open source version master branch in the Instagram app.
Multilingual translation
Requirements
- Xcode 9.0+
- iOS 9.0+
- tvOS 9.0+
- macOS 10.11+ (diffing algorithm components only)
- Interoperability with Swift 3.0+
Installation
CocoaPods
The preferred installation method is with CocoaPods. Add the following to your Podfile:
pod 'IGListKit', '~> 4.0.0'
Carthage
For Carthage, add the following to your Cartfile:
github "Instagram/IGListKit" ~> 4.0.0
For advanced usage, see our Installation Guide.
Getting Started
$ git clone https://github.com/Instagram/IGListKit.git
$ cd IGListKit/
$ ./scripts/setup.sh
- Our Getting Started guide
- Ray Wenderlich's IGListKit Tutorial: Better UICollectionViews
- Our example projects
- Ryan Nystrom's talk at try! Swift NYC(Note: this talk was for an earlier version. Some APIs have changed.)
- Migrating an UITableView to IGListCollectionView, by Rodrigo Cavalcante
- Keeping data fresh in Buffer for iOS with AsyncDisplayKit, IGListKit & Pusher, Andy Yates, Buffer
Documentation
You can find the docs here. Documentation is generated with jazzy and hosted on GitHub-Pages.
To regenerate docs, run ./scripts/build_docs.sh from the root directory in the repo.
Vision
For the long-term goals and "vision" of IGListKit, please read our Vision doc.
Contributing
Please see the CONTRIBUTING file for how to help. At Instagram, we sync the open source version of IGListKit daily, so we're always testing the latest changes. But that requires all changes be thoroughly tested and follow our style guide.
We have a set of starter tasks that are great for beginners to jump in on and start contributing.
License
IGListKit is MIT-licensed.
The files in the /Examples/ directory are licensed under a separate license as specified in each file. Documentation is licensed CC-BY-4.0.