UICollectionViewFlowLayout used in PartyWith iOS App's Party Picks section (edit mode)

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

pod "PartyPicksVerticalFlowLayout"

And then run:

$ pod install

To manually install PartyPicksVerticalFlowLayout, simply add PartyPicksVerticalFlowLayout files to your project.

To run the example project, clone the repo. No Cocoapods setup needed, the files are embeded.

Via Storyboard

You can easily set your UICollectionView's Flow Layout in your storyboard:

In your UIViewController, you'll need to implement the delegate property:

if  let flowLayout = collection.collectionViewLayout as? PartyPicksVerticalFlowLayout {
    // Your app will crash if you don't implement this property
    flowLayout.delegate = <#delegate here#>
}

Via Code

You can also set it in your UIViewController:

let flowLayout = PartyPicksVerticalFlowLayout(delegate: self) // Delegate is required
self.collectionView.collectionViewLayout = flowLayout

Additionally you can configure some extra properties:

let flowLayout = PartyPicksVerticalFlowLayout(delegate: self) // Delegate is required
self.collectionView.collectionViewLayout = flowLayout

flowLayout.cellHeight = 50
flowLayout.cellSpacing = 10
flowLayout.contentInset = UIEdgeInsets(top: 8, left: 8, bottom: 8, right: 8)

If you chose to implement PartyPicksVerticalFlowLayout via storyboard, you can custom these properties using the conditional cast operator:

if  let flowLayout = collection.collectionViewLayout as? PartyPicksVerticalFlowLayout {
    // Customize your flow layout
    flowLayout.cellHeight = 40
    flowLayout.cellSpacing = 8
    flowLayout.contentInset = UIEdgeInsets(top: 8, left: 8, bottom: 8, right: 8)
}

In order to work properly, PartyPicksVerticalFlowLayout requires a PartyPicksVerticalFlowLayoutDelegate. You'll find these methods in this protocol:

public protocol PartyPicksVerticalFlowLayoutDelegate {
    
    /**
     * Tells the flow layout which should be the width for a given cell.
     */
    func collectionView(_ collectionView: UICollectionView, widthForCellAt indexPath: IndexPath, withHeight height: CGFloat) -> CGFloat
    
    /**
     * Tells the delegate when flow layout is all set.
     */
    func didPreparedFlowLayout()
}

Please look into the example project for more details about the implementation.

Pull Requests are welcome 🙂. Let us know your thoughts!

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MIT License

Copyright (c) 2017 PartyWith B.V.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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