###Statement
I studied from an open-sourced code whose name is also "PhotoStackView". But I can't find it now. It is written by Objective-C. Here I rewrite it with swift and fix some small bugs. Also I add some function on it.
###Usage
Just like UITableViewDelegate, you can init PhotoStackView and set the delegate and dataSource of it. Then you must implement the dataSource method func numberOfPhotosInStackView(stackView: PhotoStackView) -> Int and func stackView(stackView: PhotoStackView, imageAtIndex index: Int) -> UIImage to provide data for this view. Alternatively, you can implement optional func stackView(stackView: PhotoStackView, sizeOfPhotoAtIndex index: Int) -> CGSize to specify the size for each image.
To response to some event on this control, you can either implement these optional delegate method:
@objc protocol PhotoStackViewDelegate: NSObjectProtocol { optional func stackView(stackView: PhotoStackView, didSelectPhotoAtIndex index: Int) optional func stackView(stackView: PhotoStackView, willBeginDraggingPhotoAtIndex index: Int) optional func stackView(stackView: PhotoStackView, didRevealPhotoAtIndex index: Int) optional func stackView(stackView: PhotoStackView, willFlickAwayPhotoFromIndex from: Int, toIndex to: Int) }or use addTarget:action:forControlEvents: to add action listener. All control events it support are TouchDown, TouchCancel, TouchDragInside and TouchUpInside.
###Example
//declare some properties var photos = [UIImage(named: "github_1.jpeg"), UIImage(named: "github_2.jpeg"), UIImage(named: "github_3.jpeg")] let ps = PhotoStackView() //viewDidLoad() ps.delegate = self ps.dataSource = self ps.frame = CGRect(x: 120, y: 50, width: 80, height: 80) view.addSubview(ps) ps.addTarget(self, action: Selector("touchDown"), forControlEvents: .TouchDown) //touchDown action listener func touchDown() { println("touchDown") } //data source func numberOfPhotosInStackView(stackView: PhotoStackView) -> Int { return photos.count } func stackView(stackView: PhotoStackView, imageAtIndex index: Int) -> UIImage { return photos[index]! } func stackView(stackView: PhotoStackView, sizeOfPhotoAtIndex index: Int) -> CGSize { return CGSizeMake(80, 80) } //delegate func stackView(stackView: PhotoStackView, willFlickAwayPhotoFromIndex from: Int, toIndex to: Int) { println("from \(from) to \(to)") }###Images
Move, add and delete.
Show next page
Show all photos
