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https://github.com/nakajijapan/photoslider

PhotoSlider is a simple photo slider and can delete slider with swiping.
https://github.com/nakajijapan/photoslider

carthage kingfisher photo-slider sdwebimage swift viewcontroller xcode

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PhotoSlider is a simple photo slider and can delete slider with swiping.

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# PhotoSlider for Swift

[![Carthage](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
[![Version](https://img.shields.io/cocoapods/v/PhotoSlider.svg?style=flat)](http://cocoapods.org/pods/PhotoSlider)
[![License](https://img.shields.io/cocoapods/l/PhotoSlider.svg?style=flat)](http://cocoapods.org/pods/PhotoSlider)
[![Platform](https://img.shields.io/cocoapods/p/PhotoSlider.svg?style=flat)](http://cocoapods.org/pods/PhotoSlider)
[![Language](https://img.shields.io/badge/language-Swift%204-orange.svg)](https://swift.org)
[![Backers on Open Collective](https://opencollective.com/PhotoSlider/backers/badge.svg)](#backers)
[![Sponsors on Open Collective](https://opencollective.com/PhotoSlider/sponsors/badge.svg)](#sponsors)

PhotoSlider is a simple photo slider and can delete slider with swiping.

## Requirements

- Xcode 9+
- Swift 4.0+
- iOS 10+

## Installation

### CocoaPods

PhotoSlider is available through [CocoaPods](http://cocoapods.org). To install
it, simply add the following line to your Podfile:

```ruby
pod "PhotoSlider"
```

### Carthage

[Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager for Cocoa application.

``` bash
$ brew update
$ brew install carthage
```

To integrate PhotoSlider into your Xcode project using Carthage, specify it in your `Cartfile`:

``` ogdl
github "nakajijapan/PhotoSlider"
```

Then, run the following command to build the PhotoSlider framework:

``` bash
$ carthage update
```

## Usage

### Using ZoomingAnimationControllerTransitioning

```swift

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {

var slider = PhotoSlider.ViewController(imageURLs: self.images)
slider.currentPage = indexPath.row
photoSlider.transitioningDelegate = self
present(photoSlider, animated: true, completion: nil)

}

```

#### ZoomingAnimationControllerTransitioning

return imageView for starting position

```swift
// MARK: ZoomingAnimationControllerTransitioning

func transitionSourceImageView() -> UIImageView {

let indexPath = collectionView.indexPathsForSelectedItems?.first
let cell = collectionView.cellForItem(at: indexPath!) as! ImageCollectionViewCell
let imageView = UIImageView(image: cell.imageView.image)

var frame = cell.imageView.frame
frame.origin.y += UIApplication.shared.statusBarFrame.height

imageView.frame = frame
imageView.clipsToBounds = true
imageView.contentMode = .scaleAspectFill

return imageView

}
```

return sourceImageView for finished position

```swift
func transitionDestinationImageView(sourceImageView: UIImageView) {

guard let image = sourceImageView.image else {
return
}

let indexPath = collectionView.indexPathsForSelectedItems?.first
let cell = collectionView.cellForItem(at: indexPath!) as! ImageCollectionViewCell
let statusBarHeight = UIApplication.shared.statusBarFrame.height

// snip..

sourceImageView.frame = frame

}
```

#### UIViewControllerTransitioningDelegate

```swift
// MARK: UIViewControllerTransitioningDelegate

func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
let animationController = PhotoSlider.ZoomingAnimationController(present: false)
animationController.sourceTransition = dismissed as? ZoomingAnimationControllerTransitioning
animationController.destinationTransition = self
return animationController
}

func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
let animationController = PhotoSlider.ZoomingAnimationController(present: true)
animationController.sourceTransition = source as? ZoomingAnimationControllerTransitioning
animationController.destinationTransition = presented as? ZoomingAnimationControllerTransitioning
return animationController
}

```

### Using UIModalTransitionStyle

select ZoomingAnimationController

```swift

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {

var slider = PhotoSlider.ViewController(imageURLs: self.images)
slider.modalPresentationStyle = .OverCurrentContext
slider.modalTransitionStyle = UIModalTransitionStyle.CrossDissolve
slider.index = indexPath.row
self.presentViewController(slider, animated: true, completion: nil)

}

```

## Delegation

You can handle the following event:

- optional func photoSliderControllerWillDismiss(viewController: PhotoSlider.ViewController)
- optional func photoSliderControllerDidDismiss(viewController: PhotoSlider.ViewController)

## Multiple Image Loader

PhotoSlider use Kingfisher for remote image.
If use SDWebImage in your project, image cache is not shared between Kingfisher and SDWebImage.
In this case you can make custom ImageLoader. default ImageLoader is Kingfisher.

Here is how to change SDWebImage.

First, create custom ImageLoader.

```swift
import PhotoSlider

class PhotoSliderSDImageLoader: PhotoSlider.ImageLoader {
public func load(
imageView: UIImageView?,
fromURL url: URL?,
progress: @escaping PhotoSlider.ImageLoader.ProgressBlock,
completion: @escaping PhotoSlider.ImageLoader.CompletionBlock)
{
// Webp compatibility (optional)
let WebPCoder = SDImageWebPCoder.shared
SDImageCodersManager.shared.addCoder(WebPCoder)

imageView?.sd_setImage(
withURL: url,
placeholderImage: nil,
options: SDWebImageOptions.retryFailed,
progress: { (receivedSize, totalSize) in
progress(receivedSize, totalSize)
},
completed: { (image, _, _, _) in
completion(image)
}
)
}
}
```

and set ImageLoader.

```swift
let slider = PhotoSlider.ViewController(imageURLs: images)
slider.modalPresentationStyle = .OverCurrentContext
slider.modalTransitionStyle = UIModalTransitionStyle.CrossDissolve
slider.index = indexPath.row
slider.imageLoader = PhotoSliderSDImageLoader()
present(slider, animated: true, completion: nil)
```

## Author

nakajijapan

### Special Thanks

- hikarock
- yhkaplan
- seapy
- antrix1989

## Contributors

This project exists thanks to all the people who contribute.

## Backers

Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/PhotoSlider#backer)]

## Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/PhotoSlider#sponsor)]










## License

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