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Code Quality Rank: L5
Programming language: Swift
License: NOASSERTION
Tags: Images    
Latest version: v2.5.0

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README

CI Status Carthage Compatible License Platform Swift

Lightbox is a convenient and easy to use image viewer for your iOS app, packed with all the features you expect:

  • [x] Paginated image slideshow.
  • [x] Video support.
  • [x] Double-tap to zoom.
  • [x] Image caption.
  • [x] Dynamic background based on Hue
  • [x] Remote image loading and caching based on Imaginary
  • [x] Interactive transition animations.
  • [x] Powerful configuration.
  • [x] Live Demo

Table of Contents

Usage

Controller

To start your slideshow just instantiate LightboxController, set needed delegates and present it:


// Create an array of images.
let images = [
  LightboxImage(imageURL: URL(string: "https://cdn.arstechnica.net/2011/10/05/iphone4s_sample_apple-4e8c706-intro.jpg")!),
  LightboxImage(
    image: UIImage(named: "photo1")!,
    text: "This is an example of a remote image loaded from URL"
  ),
  LightboxImage(
    image: UIImage(named: "photo2")!,
    text: "",
    videoURL: URL(string: "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4")
  ),
  LightboxImage(
    image: UIImage(named: "photo3")!,
    text: "This is an example of a local image."
  )
]

// Create an instance of LightboxController.
let controller = LightboxController(images: images)

// Set delegates.
controller.pageDelegate = self
controller.dismissalDelegate = self

// Use dynamic background.
controller.dynamicBackground = true

// Present your controller.
present(controller, animated: true, completion: nil)

Delegates

Use LightboxControllerPageDelegate if you want to be notified about page navigation changes.

extension ViewController: LightboxControllerPageDelegate {

  func lightboxController(_ controller: LightboxController, didMoveToPage page: Int) {
    print(page)
  }
}

Use LightboxControllerDismissalDelegate to be notified when controller is about to be dismissed. Please note that LightboxController dismisses itself if it was presented initially.

extension ViewController: LightboxControllerDismissalDelegate: class {

  func lightboxControllerWillDismiss(_ controller: LightboxController) {
    // ...
  }
}

Image loading

By default images are loaded using Imaginary for reliable loading and caching. But it's easy to change this behavior using LightboxConfig

LightboxConfig.loadImage = {
  imageView, URL, completion in
  // Custom image loading
}

Video

Lightbox can show and plays video using default AVPlayerViewController. Showning video by using videoURL:

LightboxImage(
  image: UIImage(named: "photo2")!,
  text: "",
  videoURL: NSURL(string: "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4")
)

Override video handling if needed:

LightboxConfig.handleVideo = { from, videoURL in
  // Custom video handling
  let videoController = AVPlayerViewController()
  videoController.player = AVPlayer(url: videoURL)

  from.present(videoController, animated: true) {
    videoController.player?.play()
  }
}

Configuration

Configure text, colors, fonts of UI elements by overriding the static variables in the Lightbox configuration struct. As an example:

LightboxConfig.CloseButton.image = UIImage(named: ImageList.Lightbox.closeButton)
LightboxConfig.CloseButton.textAttributes = TextAttributes.Lightbox.closeButton
LightboxConfig.CloseButton.text = "Finish"

LightboxConfig.DeleteButton.image = UIImage(named: ImageList.Lightbox.deleteButton)
LightboxConfig.DeleteButton.textAttributes = TextAttributes.Lightbox.deleteButton
LightboxConfig.DeleteButton.text = "Delete"

LightboxConfig.InfoLabel.ellipsisText = "Show more"

Installation

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

pod 'Lightbox'

In order to quickly try the demo project of a Lightbox just run pod try Lightbox in your terminal.

Lightbox is also available through Carthage. To install just write into your Cartfile:

github "hyperoslo/Lightbox"

To install Lightbox manually just download and drop Sources and Images folders in your project.

Author

Hyper Interaktiv AS, [email protected]

Contributing

We would love you to contribute to Lightbox, check the CONTRIBUTING file for more info.

License

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


*Note that all licence references and agreements mentioned in the Lightbox README section above are relevant to that project's source code only.