Question

我正在尝试从库中显示图像，但不断收到错误＆＃34;在功能imagePickerController下使用未解析的标识符＆＃39;＆＃39;＆＃34;其中＆＃34;如果让image = info [.......＆＃34;

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

@IBOutlet weak var imagePickerView: UIImageView!
let imagePicker = UIImagePickerController()
override func viewDidLoad() {
    super.viewDidLoad()
    imagePicker.delegate = self
    // Do any additional setup after loading the view, typically from a nib.
}


func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage{
        self.imagePickerView.contentMode = .ScaleAspectFill
        self.imagePickerView.image = image
    }
}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func pickerButton(sender: AnyObject) {
    let imagePicker = UIImagePickerController()
    imagePicker.delegate = self
    self.imagePicker.presentViewController(imagePicker, animated: true, completion: nil)
    self.dismissViewControllerAnimated(true, completion: nil)
}

}

Answer 1

你没有任何名为info的变量，也许你是editingInfo？

我认为你的功能应该是这样的：

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
    if let info = editingInfo, image = info[UIImagePickerControllerOriginalImage] as? UIImage{
        self.imagePickerView.contentMode = .ScaleAspectFill
        self.imagePickerView.image = image
    }
}

使用未解析的标识符＆＃39; info＆＃39;

1 个答案: