UIImagePickerController 使應用程序崩潰 | Swift3，Xcode8

Question

僅供參考：我是 Swift 的新手，所以這可能是一個非常簡單的問題，但我就是想不通。

我一直在使用 Xcode 8 beta 和 Swift 3 關注開始開發 iOS 應用程序 (Swift)教程。

我將點擊手勢識別器附加到圖像視圖，然后在 ViewController.swift 中添加此操作：

@IBAction func selectImageFromPhotoLibrary(_ sender: UITapGestureRecognizer) {
        // Hide the keyboard.
        nameTextField.resignFirstResponder()

        // UIImagePickerController is a view controller that lets a user pick media from their photo library.
        let imagePickerController = UIImagePickerController()

        // Only allow photos to be picked, not taken.
        imagePickerController.sourceType = .photoLibrary

        // Make sure ViewController is notified when the user picks an image.
        imagePickerController.delegate = self

        present(imagePickerController, animated: true, completion: nil)
    }

當通過點擊圖像視圖調用 selectImageFromPhotLibrary 操作時，應用程序崩潰而不顯示 ImagePicker。

我想問題在於新的禮物而不是在 Swift 3 中引入的presentViewController

---

視圖控制器.swift

 import UIKit class ViewController: UIViewController, UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate { // MARK: Properties @IBOutlet weak var mealNameLabel: UILabel! @IBOutlet weak var nameTextField: UITextField! @IBOutlet weak var photoImageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. // Handle the text field´s user input through delegate callbacks nameTextField.delegate = self } // MARK: UITextFieldDelegate func textFieldShouldReturn(_ textField: UITextField) -> Bool { // Hide the keyboard. textField.resignFirstResponder() return true } func textFieldDidEndEditing(_ textField: UITextField) { mealNameLabel.text = textField.text } // MARK: UIImagePickerControllerDelegate func imagePickerControllerDidCancel(_ picker: UIImagePickerController) { // Dismiss the picker if the user canceled. dismiss(animated: true, completion: nil) } func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { // The info dictionary contains multiple representations of the image, and this uses the original. let selectedImage = info[UIImagePickerControllerOriginalImage] as! UIImage // Set photoImageView to display the selected image. photoImageView.image = selectedImage // Dismiss the picker. dismiss(animated: true, completion: nil) } // MARK: Actions @IBAction func selectImageFromPhotoLibrary(_ sender: UITapGestureRecognizer) { // Hide the keyboard. nameTextField.resignFirstResponder() // UIImagePickerController is a view controller that lets a user pick media from their photo library. let imagePickerController = UIImagePickerController() // Only allow photos to be picked, not taken. imagePickerController.sourceType = .photoLibrary // Make sure ViewController is notified when the user picks an image. imagePickerController.delegate = self present(imagePickerController, animated: true, completion: nil) } @IBAction func setDefaultLabelText(_ sender: UIButton) { mealNameLabel.text = "Default Text" } }

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控制台輸出

2016-06-20 17:08:20.568093 FoodTracker[33322:696094] bundleid: com.armin.FoodTracker, enable_level: 0, persist_level: 0, propagate_with_activity: 0 2016-06-20 17:08:20.569458 FoodTracker[33322:696094] subsystem: com.apple.UIKit, category: HIDEvents, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:20.604909 FoodTracker[33322:696090] Created DB, header sequence number = 288 2016-06-20 17:08:20.668341 FoodTracker[33322:696090] Created DB, header sequence number = 288 2016-06-20 17:08:20.743143 FoodTracker[33322:696090] subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:20.769881 FoodTracker[33322:696091] subsystem: com.apple.FrontBoard, category: Common, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:22.007665 FoodTracker[33322:695971] subsystem: com.apple.UIKit, category: Touch, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:22.009799 FoodTracker[33322:695971] subsystem: com.apple.UIKit, category: Gesture, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:22.012973 FoodTracker[33322:695971] subsystem: com.apple.UIKit, category: GestureEnvironment, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:22.013820 FoodTracker[33322:695971] subsystem: com.apple.UIKit, category: GestureExclusion, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0 2016-06-20 17:08:23.061815 FoodTracker[33322:695971] subsystem: com.apple.photos, category: Generic, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0

Answer 1

將此鍵添加到您的info.plist ，

Key : Privacy - Photo Library Usage Description [ NSPhotoLibraryUsageDescription ]
String Value : We need access to your camera roll and photo library, so that we can do operations on it. [ Customise it in your own way] 

就是這樣， Clean & Run項目。

Answer 2

在 xcode 8 中添加了新密鑰 Privacy For -

媒體、位置、照片庫、提醒、運動、日歷、藍牙、HomeKit、相機、聯系人等。值是您將訪問的隱私的描述。例如。 “我們需要使用照片庫才能使功能正常工作”或 ANY_YOUR_APP_RELATED_DESCRIPTION。

Answer 3

注意到相機使用所需的相機鍵和值。

需要在 info.plist 中的相機和照片庫所需的密鑰：

<key>NSCameraUsageDescription</key>
<string>Access needed to use your camera.</string>

<key>NSPhotoLibraryUsageDescription</key>
<string>Access needed to photo gallery.</string>

Answer 4

我嘗試添加隱私消息，但這些對我不起作用。 然后我查看了圖像元素本身的屬性檢查器，並選中了之前未選中的“啟用用戶交互”框。 完成此操作后，選擇器開始工作。 希望它可以幫助某人。