A simple bubble watch-like layout for UICollectionView

WatchLayout

A simple bubble watch-like layout for UICollectionView.

iOS 11+

WatchLayout is available through CocoaPods. To install
it, simply add the following line to your Podfile:

pod 'WatchLayout'

dependencies: [
    .package(url: "https://github.com/HocTran/WatchLayout.git", .upToNextMajor(from: "1.0.0"))
]

let layout = WatchLayout()

Support configurations

Set the item size for collection view cell.

layout.itemSize = 200

Set the cell item spacing. Minus means the items can be overlapped. Default value 0.

layout.spacing = -40

Set the scaling for item next to the item in the center. Default value 0.4

layout.nextItemScale = 0.2

Set the minimum scaling for item depending on the distance to the center. Default value 0.2

layout.minScale = 0.2

Assign the custom layout to UICollectionView

collectionView.collectionViewLayout = layout

Scroll to an item at the index path

    self.collectionView.setContentOffset(layout.centeredOffsetForItem(indexPath: IndexPath(item: 0, section: 0)), animated: true)

Positioning	Scrolling

Example 01	Example 02

To run the example project, clone the repo, open WatchLayout.xcworkspace.

Select scheme WatchLayout, Cmd+B to build the framwork.

Select scheme Example-iOS, and run the example.