私のコード:(申し訳ありませんが、それはコメントに返信用長すぎる)
輸入のUIKit
クラスのViewController:のUIViewController、UITextFieldDelegate、UIImagePickerControllerDelegate、UINavigationControllerDelegate {
// MARK: Properties
@IBOutlet weak var nameTextField: UITextField!
@IBOutlet weak var mealNameLabel: UILabel!
@IBOutlet weak var photoImageView: UIImageView!
override func viewDidLoad()
{
super.viewDidLoad()
// Handle the text field’s user input through delegate callbacks.
nameTextField.delegate = self
}
/*override func didReceiveMemoryWarning()
{
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
} */
// 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 : Any])
{
// The info dictionary may contain multiple representations of the image. You want to use the original.
guard let selectedImage = info[UIImagePickerControllerOriginalImage] as? UIImage
else
{
fatalError("Expected a dictionary containing an image, but was provided the following: \(info)")
}
// Set photoImageView to display the selected image.
photoImageView.image = selectedImage
// Dismiss the picker
dismiss(animated: true, completion: nil)
}
// MARK: Actions
@IBAction func setDefaultLabelText(_ sender: UIButton)
{
mealNameLabel.text = "Default Text"
}
@IBAction func selectImageFromPhotoLibrary(_ sender: Any)
{
// 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
// The type of imagePickerController.sourceType is known to be UIImagePickerControllerSourceType, which is an enumeration. This means you can write its value as the abbreviated form .photoLibrary instead of UIImagePickerControllerSourceType.photoLibrary.
// Make sure ViewController is notified when the user picks an image.
imagePickerController.delegate = self
present(imagePickerController, animated: true, completion: nil)
}
}
コードを入力してくださいここをクリック –
コードに何か問題があります。 –
赤い線は、アプリがクラッシュしたことを意味します。投稿した画像に実際のエラーは反映されず、代わりにデバッガの画像をアップロードしてください。問題を引き起こす原因がわからない場合は質問をしながら、コードを置く方が良いでしょう。これまでのことを見ることができます。 –