https://github.com/ecerney/CollectionViewWaterfallLayout

Pinterest inspired layout for UICollectionViews
https://github.com/ecerney/CollectionViewWaterfallLayout

Last synced: about 1 month ago
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Pinterest inspired layout for UICollectionViews

• Host: GitHub
• URL: https://github.com/ecerney/CollectionViewWaterfallLayout
• Owner: ecerney
• License: mit
• Created: 2014-07-23T17:59:09.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2020-12-22T09:42:43.000Z (almost 4 years ago)
• Last Synced: 2024-10-31T16:09:03.983Z (about 2 months ago)
• Language: Swift
• Homepage:
• Size: 1.2 MB
• Stars: 491
• Watchers: 16
• Forks: 69
• Open Issues: 11
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-cocoa - CollectionViewWaterfallLayout

README

        
CollectionViewWaterfallLayout

========================

Pinterest inspired layout for UICollectionViews

**Note: Updated for Swift 5.0. This was a big upgrade from Swift 2.0, so please submit an issue / fix if you run into anything. Thanks!**

**CollectionViewWaterfallLayout** is a subclass of [UICollectionViewLayout](https://developer.apple.com/library/ios/documentation/uikit/reference/UICollectionViewLayout_class/Reference/Reference.html) written completely in Swift. This class is based off [CHTCollectionViewWaterfallLayout](https://github.com/chiahsien/CHTCollectionViewWaterfallLayout) which was written by [chiahsien](https://github.com/chiahsien) in Objective-C. This class tries to use as many new Swifty things to keep the code updated with current design patterns.

The original layout was inspired by [Pinterest](http://www.pinterest.com/).

Features

-----------

* Easy to use - If you are used to working with UICollectionViewFlowLayout, this should feel natural

* Highly Customizable

* Outstanding Performance

* Supports headers and footers

Screen Shots

-----------

![Real World Example](/Screenshots/RealWorldExample.png?raw=true "Real World Example") 

![Demo Example](/Screenshots/DemoExample.png?raw=true "Demo Example")

Prerequisites

-----------

* ARC

* iOS 8+

* Xcode 10+

* Swift 5.0

Installation

-----------

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

```

pod "CollectionViewWaterfallLayout"

```

How to Use

-----------

Make sure to import the pod in the files you plan to use it in:

```

import CollectionViewWaterfallLayout

```

Check out the demo project for an example using storyboards to set up the views, and that programmatically creates and customizes the waterfall layout.

#### Customizable Properties

Below are the public properties and their default values that you can change to customize the layout

``` swift

var columnCount: Int = 2

var minimumColumnSpacing: Float = 10.0

var minimumInteritemSpacing: Float = 10.0

var headerHeight: Float = 0.0

var footerHeight: Float = 0.0

var headerInset: UIEdgeInsets = .zero

var footerInset: UIEdgeInsets = .zero

var sectionInset: UIEdgeInsets = .zero

```

#### Required Protocol

Your collection view's delegate must conforms to `CollectionViewWaterfallLayoutDelegate` protocol and implement the required method, all you need to do is return the original size of the item:

``` swift

func collectionView(collectionView: UICollectionView, layout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize

```

#### Optional Protocol

You can customize the layout properties dynamically by using the following optional protocol methods:

``` swift

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, heightForHeaderInSection section: Int) -> Float

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, heightForFooterInSection section: Int) -> Float

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, insetForSection section: Int) -> UIEdgeInsets

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, insetForHeaderInSection section: Int) -> UIEdgeInsets

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, insetForFooterInSection section: Int) -> UIEdgeInsets

func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, minimumInteritemSpacingForSection section: Int) -> Float

```

Limitation

----------

* Only vertical scrolling is supported.

* No decoration view.

License

-------

CollectionViewWaterfallLayout is available under the MIT license. See the LICENSE file for more info.