別の画像を表示させたいのですが…

同画面にアルバムを呼び出す画面を２箇所使って別々の画像を表示させたいと思っています。別の画像を表示させたいのですが…同じのが出てしまいます。

swift
1import UIKit
2import Photos
3
4class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
5
6    
7    @IBOutlet var back1: UIImageView!
8    
9    @IBOutlet var back2: UIImageView!
10    
11    override func viewDidLoad() {
12        super.viewDidLoad()
13        
14        PHPhotoLibrary.requestAuthorization { (status) in
15            
16            switch(status){
17            case .authorized: break
18            case .denied: break
19            case .notDetermined: break
20            case .restricted: break
21            
22            }
23        }
24    
25        
26    }
27    
28    func imagePickerController(_ picker: UIImagePickerController,
29                               didFinishPickingMediaWithInfo info:
30                                [UIImagePickerController.InfoKey : Any]) {
31        
32        if let pickedImage = info[.originalImage] as? UIImage
33        {
34            back1.image = pickedImage
35            picker.dismiss(animated: true, completion: nil)
36            
37            back2.image = pickedImage
38            picker.dismiss(animated: true, completion: nil)
39        }
40    }
41    
42    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
43        
44        picker.dismiss(animated: true, completion: nil)
45    }
46    
47    
48    //カメラ１を呼び出す
49    @IBAction func camera1(_ sender: Any) {
50        let
51            sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.camera
52        if
53            UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera){
54        let
55            cameraPicker = UIImagePickerController()
56            cameraPicker.sourceType = sourceType
57            cameraPicker.delegate = self
58            self.present(cameraPicker, animated: true, completion: nil)
59        }
60    }
61    
62    //カメラ２を呼び出す
63    @IBAction func camera2(_ sender: Any) {
64        let
65        sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
66        if
67            UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera){
68            let
69            cameraPicker = UIImagePickerController()
70            cameraPicker.sourceType = sourceType
71            cameraPicker.delegate = self
72            self.present(cameraPicker, animated: true, completion: nil)
73        }
74    }
75    
76    //アルバム１を呼び出す
77    @IBAction func album1(_ sender: Any) {
78        let
79        sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
80        if
81            UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
82            let
83            cameraPicker = UIImagePickerController()
84            cameraPicker.sourceType = sourceType
85            cameraPicker.delegate = self
86            self.present(cameraPicker, animated: true, completion: nil)
87        }
88    }
89    
90    //アルバム２を呼び出す
91    @IBAction func album2(_ sender: Any) {
92        let
93        sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
94        if
95            UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
96            let
97            cameraPicker = UIImagePickerController()
98            cameraPicker.sourceType = sourceType
99            cameraPicker.delegate = self
100            self.present(cameraPicker, animated: true, completion: nil)
101        }
102    }
103    
104    
105}
106

行動規範の内容に同意します

回答1件

ベストアンサー

UIImagePickerControllerDelegate の delegateメソッドで
どちらのPickerかを区別できないため同じ画像が設置されるようです。
プロパティを宣言するかtagを使うことで解決できそうです。(前者はこんな感じ)

swift
1let firstPicker = UIImagePickerController()
2let secondPicker = UIImagePickerController()
3
4// 略
5
6//アルバム１を呼び出す
7@IBAction func album1(_ sender: Any) {
8    let sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
9    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
10        // すでに宣言したプロパティを使用
11        self.firstPicker.sourceType = sourceType
12        self.firstPicker.delegate = self
13        self.present(self.firstPicker, animated: true, completion: nil)
14    }
15}
16
17//アルバム２を呼び出す
18@IBAction func album2(_ sender: Any) {
19    let sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
20    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
21        // すでに宣言したプロパティを使用
22        self.secondPicker.sourceType = sourceType
23        self.secondPicker.delegate = self
24        self.present(self.secondPicker, animated: true, completion: nil)
25    }
26}

最後に delegate メソッド内でどのピッカーかを区別する条件文を実装。

swift
1func imagePickerController(_ picker: UIImagePickerController,
2                               didFinishPickingMediaWithInfo info:
3                                [UIImagePickerController.InfoKey : Any]) {
4
5    if let pickedImage = info[.originalImage] as? UIImage {
6        // ピッカーの種類がどちらかを判定する
7        if(picker == self.firstPicker) {
8            back1.image = pickedImage
9        } else if(picker == self.secondPicker) {
10            back2.image = pickedImage
11        } else {
12            // 何か処理があれば記載
13        }
14        picker.dismiss(animated: true, completion: nil)
15    }
16}

タグを使う後者だと下記のようになります。

swift
1//アルバム１を呼び出す(tagは1)
2@IBAction func album1(_ sender: Any) {
3    let sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
4    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
5        let cameraPicker = UIImagePickerController()
6        cameraPicker.view.tag = 1    // Viewにタグを付与
7        cameraPicker.sourceType = sourceType
8        cameraPicker.delegate = self
9        self.present(cameraPicker, animated: true, completion: nil)
10    }
11}
12
13//アルバム２を呼び出す(tagは2)
14@IBAction func album2(_ sender: Any) {
15    let sourceType:UIImagePickerController.SourceType = UIImagePickerController.SourceType.photoLibrary
16    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
17        let cameraPicker = UIImagePickerController()
18        cameraPicker.view.tag = 2    // Viewにタグを付与
19        cameraPicker.sourceType = sourceType
20        cameraPicker.delegate = self
21        self.present(cameraPicker, animated: true, completion: nil)
22    }
23}
24
25func imagePickerController(_ picker: UIImagePickerController,
26                               didFinishPickingMediaWithInfo info:
27                                [UIImagePickerController.InfoKey : Any]) {
28
29    if let pickedImage = info[.originalImage] as? UIImage {
30        // Viewに付与したtagを用いてどちらのピッカーかを判別する
31        if(picker.view.tag == 1) {
32            back1.image = pickedImage
33        } else if(picker.view.tag == 2) {
34            back2.image = pickedImage
35        } else {
36            // 何かあれば記載
37        }
38        picker.dismiss(animated: true, completion: nil)
39    }
40}