如何从 UIImagePickerController 导入图像到新的 VC？ Swift

Question

我已经在我的应用程序中添加了一个相机和照片库，但我想要做的是当有人选择相机、拍照并选择它时，我希望它将用户引导到一个新的 viewcontroller 并在那里显示图像而不是按钮所在的当前视图？

到目前为止，在 google 上，我已经设法在关闭相机或库时加载新视图，但现在我似乎无法弄清楚如何将照片也导入新视图也看？！

如果有人能帮忙，那就太好了。

下面是我当前的代码：

    override func viewDidLoad() {
        super.viewDidLoad()



        // Do any additional setup after loading the view.
    }

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









    @IBAction func Camera(sender: AnyObject) {

        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera) {
        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerControllerSourceType.Camera;
        imagePicker.allowsEditing = false
        self.presentViewController(imagePicker, animated: true, completion: nil)
        }



    }



    @IBAction func Images(sender: AnyObject) {

        let image = UIImagePickerController()
        image.delegate = self
        image.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
        image.allowsEditing = false


        self.presentViewController(image, animated: true, completion: nil)



    }



    func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image:UIImage, editingInfo: [String : AnyObject]?) {

        self.dismissViewControllerAnimated(true, completion: nil)
        let svc = self.storyboard!.instantiateViewControllerWithIdentifier("imageViewer") as! ImageViewController
        self.presentViewController(svc, animated: true, completion: nil)


    }



















}

Answer 1

向您的视图控制器添加一个可选的属性

class ImageViewController: UIViewController {

    var image : UIImage? = nil 

}


func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image:UIImage, editingInfo: [String : AnyObject]?) {

        self.dismissViewControllerAnimated(true, completion: nil)
        let svc = self.storyboard!.instantiateViewControllerWithIdentifier("imageViewer") as! ImageViewController
        svc.image = image // here
        self.presentViewController(svc, animated: true, completion: nil)

    }

Answer 2

根据上面的回答，你试图将图像设置为图像视图，当你应该尝试将图像设置为图像视图的图像时，所以，它应该是：

func viewDidLoad() { super.viewDidLoad()

// Because the self.image is an optional var, you need to unwrap it
if let image = self.image {
    self.imageView.image = self.image
}

}

Answer 3

在您的 ImageViewController 或其他接收 ViewController 中，添加：

var selectedImage: UIImage? = nil

在 didFinishPickingImage 中，将您的代码替换为：

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image:UIImage, editingInfo: [String : AnyObject]?) {
    self.dismissViewControllerAnimated(true, completion: nil)
    let svc = self.storyboard!.instantiateViewControllerWithIdentifier("imageViewer") as! ImageViewController
    svc.selectedImage = image
    self.presentViewController(svc, animated: true, completion: nil)
}

在svc所指的接收ViewController中，添加显示图片的方法：

class ImageViewController: UIViewController {

    var selectedImage: UIImage? = nil

    var yourImageView = UIImageView()

    override func viewDidLoad() {
        super.viewDidLoad()
        ...
        yourImageView.frame = view.frame
        yourImageView.image = selectedImage
    }
    ...
}

Answer 4

我想提出一点修改建议。

请看一下这个答案：Presenting a modal view controller immediately after dismissing another

func presentImageViewerWithImage(image: UIImage) {

    let svc = self.storyboard!.instantiateViewControllerWithIdentifier("imageViewer") as! ImageViewController
    svc.image = image  //Need to make an UIImage instance variable in new viewController
    self.presentViewController(svc, animated: true, completion: nil)
}

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image:UIImage, editingInfo: [String : AnyObject]?) {

    self.dismissViewControllerAnimated(false, completion: {
        self.presentImageViewerWithImage(image)
    })
}

然后在新视图控制器中创建一个 UIImageView IBOutlet 并向 'ImageView'

显示选定的图像表单选择器

@IBOutlet weak var aImageView: UIImageView!

var image : UIImage?

override func viewDidLoad() {
    super.viewDidLoad()

    if let image = image {
        self.aImageView.image = image
    }
}

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