Swiftの内線番号から関数を呼び出す方法

Question

フォトギャラリーフレームワークであるINSPhotoGalleryフレームワーク（https://github.com/inspace-io/INSPhotoGallery）を使用しています。開始時に特定のメソッドを呼び出し、オーバービュー/テーブルビューではなく開始時に効果的にプレビューを行いたいと思います。私はあなたがそれをクリックすると表示される最初のセルのプレビュー画像を表示したいと思います。

// 
// ViewController.swift 
// INSPhotoGallery 
// 
// Created by Michal Zaborowski on 04.04.2016. 
// Copyright © 2016 Inspace Labs Sp z o. o. Spółka Komandytowa. All rights reserved. 
// 

import UIKit 
import INSPhotoGalleryFramework 

class ViewController: UIViewController { 

    @IBOutlet weak var collectionView: UICollectionView! 
    var useCustomOverlay = false 



    lazy var photos: [INSPhotoViewable] = { 
     return [ 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/JXY2d4A.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/JXY2d4A.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/NC4bqLB.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/NC4bqLB.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/jBbQXNz.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/jBbQXNz.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/WCXkdwW.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/WCXkdwW.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/p7ujK0t.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/p7ujK0t.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/Ak4qwsS.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/Ak4qwsS.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/w2JJtDf.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/w2JJtDf.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/HCCSco3.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/HCCSco3.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/Za6Ialf.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/Za6Ialf.jpg")), 

      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/Pqc6k4v.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/Pqc6k4v.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/D8BBMd4.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/D8BBMd4.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/bggxrss.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/bggxrss.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/w1Lnl2c.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/w1Lnl2c.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/qoA0qA9.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/qoA0qA9.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/DkCEfkw.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/DkCEfkw.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/U4ihOo6.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/U4ihOo6.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/QvLBs7A.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/QvLBs7A.jpg")), 
      INSPhoto(imageURL: NSURL(string: "http://i.imgur.com/ZytdIk1.jpg"), thumbnailImageURL: NSURL(string: "http://i.imgur.com/ZytdIk1.jpg")), 

     ] 
    }() 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     collectionView.delegate = self 
     collectionView.dataSource = self 

     for photo in photos { 
      if let photo = photo as? INSPhoto { 
       photo.attributedTitle = NSAttributedString(string: "Note: Click top right to download wallpaper, \nscroll left or right to browse", attributes: [NSForegroundColorAttributeName: UIColor.whiteColor()]) 
      } 
     } 


    } 
} 

extension ViewController: UICollectionViewDataSource, UICollectionViewDelegateFlowLayout { 
    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { 
     let cell = collectionView.dequeueReusableCellWithReuseIdentifier("ExampleCollectionViewCell", forIndexPath: indexPath) as! ExampleCollectionViewCell 
     cell.populateWithPhoto(photos[indexPath.row]) 



     return cell 
    } 
    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
     return photos.count 
    } 

    func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) { 
     print(indexPath) 
     let cell = collectionView.cellForItemAtIndexPath(indexPath) as! ExampleCollectionViewCell 
     let currentPhoto = photos[indexPath.row] 
     let galleryPreview = INSPhotosViewController(photos: photos, initialPhoto: currentPhoto, referenceView: cell) 
     if useCustomOverlay { 
      galleryPreview.overlayView = CustomOverlayView(frame: CGRect.zero) 
     } 

     galleryPreview.referenceViewForPhotoWhenDismissingHandler = { [weak self] photo in 
      if let index = self?.photos.indexOf({$0 === photo}) { 
       let indexPath = NSIndexPath(forItem: index, inSection: 0) 
       return collectionView.cellForItemAtIndexPath(indexPath) as? ExampleCollectionViewCell 
      } 
      return nil 
     } 

この1：あなたはviewDidAppearでそれを提示することができます

presentViewController(galleryPreview, animated: true, completion: nil) 
     } 
    } 

Answer 1

。たとえば、次のように

override func viewDidAppear(animated: Bool) 
{ 
    super.viewDidAppear(animated) 
    let cell = self.collectionView.cellForItemAtIndexPath(NSIndexPath(forItem: 0, inSection: 0)) 
    let currentPhoto = photos.first! 
    let galleryPreview = INSPhotosViewController(photos: photos \* if you only want to swipe the first image replace"photos" with "[photos.first!]", initialPhoto: currentPhoto, referenceView: cell) 

    galleryPreview.referenceViewForPhotoWhenDismissingHandler = { [weak self] photo in 
     if let index = self?.photos.indexOf({$0 === photo}) { 
      let indexPath = NSIndexPath(forItem: index, inSection: 0) 
      return self.collectionView.cellForItemAtIndexPath(indexPath) 
     } 
     return nil 
    } 
    self.presentViewController(galleryPreview, animated: true, completion: nil) 
} 

これはあなたのために働いていませんでしたか？