К вашему сведению: я новичок в Swift, так что это может быть действительно простая проблема, но я просто не могу понять это.

Я следил заНачните разработку приложений для iOS (Swift) учебник с использованием бета-версии Xcode 8 и Swift 3.

Я подключил Распознаватель жестов касания к представлению изображения, а затем добавил это действие в ViewController.swift:

@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)
    }

Когда действие selectImageFromPhotLibrary вызывается нажатием на просмотр изображений, приложение вылетает без отображения ImagePicker.

Я думаю, что проблема с новымподарок вместоpresentViewController который был введен в Swift 3

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"
    }


}

Консольный выход

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