SwiftPhotoGallery

Overview

A full screen photo gallery for iOS and tvOS written in Swift.

• Photos can be panned and zoomed (iOS only)
• Pinch to zoom (iOS only)
• Double tap to zoom all the way in and again to zoom all the way out (iOS only)
• Single tap to close
• Twitter style swipe to close (iOS only)
• Includes a customizable page indicator
• Support for any orientation (iOS only)
• Supports images of varying sizes
• Includes unit tests
• Customize nearly all UI aspects
• Integrates seamlessly with SDWebImage

Usage

To run the example project, clone the repo, and run pod install from the Example directory.

Requirements

• iOS 9.0+
• tvOS 10.0+
• Xcode 10.2.1+
• Swift 5.0+

Communication

• If you need help, use Stack Overflow. (Tag 'swiftphotogallery')
• If you'd like to ask a general question, use Stack Overflow.
• If you found a bug, open an issue.
• If you have a feature request, open an issue.
• If you want to contribute, submit a pull request.

Installation

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

pod 'SwiftPhotoGallery'

Implementation

• Import the framework in your view controller

import SwiftPhotoGallery

• Create an instance

let gallery = SwiftPhotoGallery(delegate: self, dataSource: self)

• Customize the look

gallery.backgroundColor = UIColor.black
gallery.pageIndicatorTintColor = UIColor.gray.withAlphaComponent(0.5)
gallery.currentPageIndicatorTintColor = UIColor.white
gallery.hidePageControl = false

• Implement the datasource

let imageNames = ["image1.jpeg", "image2.jpeg", "image3.jpeg"]

func numberOfImagesInGallery(gallery: SwiftPhotoGallery) -> Int {
    return imageNames.count
}

func imageInGallery(gallery: SwiftPhotoGallery, forIndex: Int) -> UIImage? {
    return UIImage(named: imageNames[forIndex])
}

• Implement the delegate

func galleryDidTapToClose(gallery: SwiftPhotoGallery) {
    // do something cool like:
    dismiss(animated: true, completion: nil)
}

• Present the gallery

present(gallery, animated: true, completion: nil)

Full Example

class ViewController: UIViewController, SwiftPhotoGalleryDataSource, SwiftPhotoGalleryDelegate {

    let imageNames = ["image1.jpeg", "image2.jpeg", "image3.jpeg"]
    var index: Int = 2

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func didPressShowMeButton(sender: AnyObject) {
        let gallery = SwiftPhotoGallery(delegate: self, dataSource: self)

        gallery.backgroundColor = UIColor.black
        gallery.pageIndicatorTintColor = UIColor.gray.withAlphaComponent(0.5)
        gallery.currentPageIndicatorTintColor = UIColor.white
        gallery.hidePageControl = false

        present(gallery, animated: true, completion: nil)

        /*
        /// Or load on a specific page like this:

        present(gallery, animated: true, completion: { () -> Void in
            gallery.currentPage = self.index
        })
        */

    }

    // MARK: SwiftPhotoGalleryDataSource Methods

    func numberOfImagesInGallery(gallery: SwiftPhotoGallery) -> Int {
        return imageNames.count
    }

    func imageInGallery(gallery: SwiftPhotoGallery, forIndex: Int) -> UIImage? {
        return UIImage(named: imageNames[forIndex])
    }

    // MARK: SwiftPhotoGalleryDelegate Methods

    func galleryDidTapToClose(gallery: SwiftPhotoGallery) {
        dismiss(animated: true, completion: nil)
    }
    
}

Author

Justin Vallely, justinvallely@gmail.com

License

SwiftPhotoGallery is available under the Apache License 2.0. See the LICENSE file for more info.