56 Select an image from the library in UIImagePickerController

Swift 3.0 AppDelegate.swift // // AppDelegate.swift // UIKit056 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? var myViewController: UIViewController? func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { //ViewControllerのインスタンス化 myViewController = ViewController() //UINavigationControllerのインスタンス化とrootViewControllerの指定 let myNavigationController = UINavigationController(rootViewController: myViewController!) //UIWindowのインスタンス化 self.window = UIWindow(frame: UIScreen.main.bounds) //UIWindowのrootViewControllerにnavigationControllerを指定 self.window?.rootViewController = myNavigationController //UIWindowの表示 self.window?.makeKeyAndVisible() return true } } ViewController.swift // // ViewController.swift // UIKit056 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit class ViewController: UIViewController, UINavigationControllerDelegate, UIImagePickerControllerDelegate { var myImagePicker: UIImagePickerController! var myImageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() self.title = "Select a Image" myImageView = UIImageView(frame: self.view.bounds) // インスタンス生成 myImagePicker = UIImagePickerController() // デリゲート設定 myImagePicker.delegate = self // 画像の取得先はフォトライブラリ myImagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary // 画像取得後の編集を不可に myImagePicker.allowsEditing = false } override func viewDidAppear(_ animated: Bool) { self.present(myImagePicker, animated: true, completion: nil) } /** 画像が選択された時に呼ばれる. */ func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { //選択された画像を取得. let myImage: AnyObject? = info[UIImagePickerControllerOriginalImage] //選択された画像を表示するViewControllerを生成. let secondViewController = SecondViewController() //選択された画像を表示するViewContorllerにセットする. secondViewController.mySelectedImage = myImage as! UIImage myImagePicker.pushViewController(secondViewController, animated: true) } /** 画像選択がキャンセルされた時に呼ばれる. */ func imagePickerControllerDidCancel(_ picker: UIImagePickerController) { // モーダルビューを閉じる self.dismiss(animated: true, completion: nil) } } SecondViewController // // SecondViewController.swift // UIKit056 // // Created by Misato Morino on 2016/08/22. // Copyright © 2016年 Misato Morino. All rights reserved. // import Foundation import UIKit class SecondViewController: UIViewController { var mySelectedImage: UIImage! var mySelectedImageView: UIImageView! override func viewDidLoad() { self.edgesForExtendedLayout = [] self.view.backgroundColor = UIColor.white setImage() } /** 選択された画像をUIImageViewにセットする. */ func setImage(){ self.title = "Selected Image" mySelectedImageView = UIImageView(frame: self.view.bounds) mySelectedImageView.contentMode = UIViewContentMode.scaleAspectFit mySelectedImageView.image = mySelectedImage self.view.addSubview(mySelectedImageView) } } Info,plist <key>NSPhotoLibraryUsageDescription</key> <string>YES</string> <key>NSAppleMusicUsageDescription</key> <string>YES</string> Info.plistに上記を追加（2.3には必要ない） Swift 2.3 AppDelegate.swift // // AppDelegate.swift // UIKit056 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? var myViewController: UIViewController? func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { //ViewControllerのインスタンス化 myViewController = ViewController() //UINavigationControllerのインスタンス化とrootViewControllerの指定 let myNavigationController = UINavigationController(rootViewController: myViewController!) //UIWindowのインスタンス化 self.window = UIWindow(frame: UIScreen.mainScreen().bounds) //UIWindowのrootViewControllerにnavigationControllerを指定 self.window?.rootViewController = myNavigationController //UIWindowの表示 self.window?.makeKeyAndVisible() return true } } ViewController.swift // // ViewController.swift // UIKit056 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit class ViewController: UIViewController, UINavigationControllerDelegate, UIImagePickerControllerDelegate { var myImagePicker: UIImagePickerController! var myImageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() self.title = "Select a Image" myImageView = UIImageView(frame: self.view.bounds) // インスタンス生成 myImagePicker = UIImagePickerController() // デリゲート設定 myImagePicker.delegate = self // 画像の取得先はフォトライブラリ myImagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary // 画像取得後の編集を不可に myImagePicker.allowsEditing = false } override func viewDidAppear(animated: Bool) { self.presentViewController(myImagePicker, animated: true, completion: nil) } /** 画像が選択された時に呼ばれる. */ func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { //選択された画像を取得. let myImage: AnyObject? = info[UIImagePickerControllerOriginalImage] //選択された画像を表示するViewControllerを生成. let secondViewController = SecondViewController() //選択された画像を表示するViewContorllerにセットする. secondViewController.mySelectedImage = myImage as! UIImage myImagePicker.pushViewController(secondViewController, animated: true) } /** 画像選択がキャンセルされた時に呼ばれる. */ func imagePickerControllerDidCancel(picker: UIImagePickerController) { // モーダルビューを閉じる self.dismissViewControllerAnimated(true, completion: nil) } } SecondViewController // // SecondViewController.swift // UIKit056 // // Created by Misato Morino on 2016/08/22. // Copyright © 2016年 Misato Morino. All rights reserved. // import Foundation import UIKit class SecondViewController: UIViewController { var mySelectedImage: UIImage! var mySelectedImageView: UIImageView! override func viewDidLoad() { self.edgesForExtendedLayout = UIRectEdge.None self.view.backgroundColor = UIColor.whiteColor() setImage() } /** 選択された画像をUIImageViewにセットする. */ func setImage(){ self.title = "Selected Image" mySelectedImageView = UIImageView(frame: self.view.bounds) mySelectedImageView.contentMode = UIViewContentMode.ScaleAspectFit mySelectedImageView.image = mySelectedImage self.view.addSubview(mySelectedImageView) } } 2.3と3.0の差分 func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) から func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) に変更 func imagePickerControllerDidCancel(picker: UIImagePickerController) から func imagePickerControllerDidCancel(_ picker: UIImagePickerController) に変更 presentViewController から present に変更 dismissViewControllerAnimated から dismiss に変更