ChainPageCollectionView
A custom iOS view with two-level chained collection views and smooth transition animations.
What is ChainPageCollectionView?
ChainPageCollectionView is a custom iOS UI component that implements two-level chained collection views with animated transitions. It solves the problem of creating hierarchical navigation interfaces where parent items control child content with smooth visual effects.
iOS developers building apps that require hierarchical data presentation with animated transitions between levels, such as category-subcategory interfaces or master-detail views with visual flair.
Developers choose ChainPageCollectionView for its ready-to-use implementation of complex chained collection views with polished animations, saving development time compared to building similar functionality from scratch.
Overview
A custom View with fancy collectionView animation
Use Cases
Best For
- Building category-subcategory browsing interfaces with animations
- Creating master-detail views with smooth transition effects
- Implementing hierarchical navigation in iOS apps
- Adding animated collection view transitions to existing apps
- Developing visually engaging content browsers
Not Ideal For
- Apps built entirely with SwiftUI that avoid mixing UIKit components
- Projects requiring simple, static list displays without animations or hierarchical navigation
- Developers preferring automatic data binding over manual delegate protocol implementations
- Teams seeking lightweight, dependency-free UI solutions without CocoaPods or Carthage
Pros & Cons
Pros
Supports slide-out/slide-in and shrink-out/expand-in animations, providing polished visual transitions as shown in the demo gifs, enhancing user engagement.
Allows custom collection view layouts and item sizes for both parent and child views, enabling tailored designs beyond default configurations.
Enables customization of parent and child view heights with a default 3:4 ratio and support for custom ratios via viewType, offering layout control.
Uses a clear delegate protocol for data source and index change responses, making the code structured and predictable for integration.
Cons
Requires developers to explicitly set childCollectionViewDataReady to true after data updates, a step that is easy to miss and can cause UI issues if forgotten.
Currently supports only two animation types (slide-out/slide-in and shrink-out/expand-in), which may not cover all transition needs or creative effects.
Built solely for UIKit, so it lacks native SwiftUI or Combine support, making it cumbersome for modern iOS projects adopting newer frameworks.
Frequently Asked Questions
Related Projects
LottieAn iOS library to natively render After Effects vector animations
SpringA library to simplify iOS animations in Swift.
IBAnimatableDesign and prototype customized UI, interaction, navigation, transition and animation for App Store ready Apps in Interface Builder with IBAnimatable.
ViewAnimatorViewAnimator brings your UI to life with just one line
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