UIImagePickerController崩溃的应用程序| Swift3，Xcode8

仅供参考：我对Swift很陌生，所以这可能是一个非常简单的问题，但我不能弄明白。

我一直在关注使用Xcode 8 beta和Swift 3 开始开发iOS应用（Swift）教程。

我将一个Tap Gesture识别器附加到Image View，然后在ViewController.swift中添加这个动作：

@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) } 

当SelectImageFromPhotLibrary动作通过在Image View上点击来调用时，应用程序崩溃而不显示ImagePicker。

我想这个问题是在Swift 3中引入的，而不是presentViewController

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ViewController.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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控制台输出

 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

添加此密钥到您的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] 

就是这样， Clean & Run项目。

Answer 2

在xcode 8新密钥添加Privacy For –

媒体，位置，照片库，提醒，议案，日历，蓝牙，HomeKit，相机，联系人等。价值是说明为您将访问的隐私。 “我们需要访问使用照片库，使function工作”或ANY_YOUR_APP_RELATED_DESCRIPTION。

Answer 3

注意到相机使用所需的相机键和值。

照相机和照片库所需的键需要在info.plist中：

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

Answer 4

我试图添加隐私信息，但这些对我来说并不合适。 然后，我查看了图像元素本身的属性检查器，并选中了“用户交互已启用”框，该框以前未被选中。 这样做之后，select器工作。 希望它可以帮助别人。