Objective-C方法'imagePickerController：didFinishPickingMediaWithInfo：'

Question

Objective-C方法'imagePickerController：didFinishPickingMediaWithInfo：'由方法提供'imagePickerController（：didFinishPickingMediaWithInfo :)'与协议'UIImagePickerControllerDelegate'中的可选需求方法'imagePickerController（：didFinishPickingMediaWithInfo :)'冲突/ p>

代码如下。怎么了？使用Xcode 6.4 Beta。

func imagePickerController(picker: UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary!) 

Answer 1

升级到swift 2.0后出现此错误。易于修复，只需重新键入此方法，然后自动完成将指导参数类型的更改。现在它应该是：

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo: [String: Anyobject]) {

Answer 2

您可以尝试修改方法，如下所示： func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject: AnyObject])

这是使用此委托的完整示例：

  func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject: AnyObject]) {

    var image: UIImage!

    // fetch the selected image
    if picker.allowsEditing {
      image = info[UIImagePickerControllerEditedImage] as! UIImage
    } else {
      image = info[UIImagePickerControllerOriginalImage] as! UIImage
    }

    // Do something about image by yourself

    // dissmiss the image picker controller window
    self.dismissViewControllerAnimated(true, completion: nil)

  }

Answer 3

这对我有用。

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
        imageView.contentMode = .ScaleAspectFit
        imageView.image = pickedImage
    }

    dismissViewControllerAnimated(true, completion: nil)
}

Answer 4

您的问题的正确功能格式是，

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject])
    {
        // Add your functionality here
    }