错误:无法使用“UIImagePickerController.InfoKey”类型的索引为“[String:Any]”类型的值下标 [重复]
Posted
技术标签:
【中文标题】错误:无法使用“UIImagePickerController.InfoKey”类型的索引为“[String:Any]”类型的值下标 [重复]【英文标题】:error: Cannot subscript a value of type '[String : Any]' with an index of type 'UIImagePickerController.InfoKey' [duplicate] 【发布时间】:2018-12-29 19:31:52 【问题描述】:我正在尝试重建 Apple 测试应用程序以通过 CoreML 进行图像检测,但出现错误:
无法使用“UIImagePickerController.InfoKey”类型的索引为“[String : Any]”类型的值下标
extension ImageClassificationViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any])
picker.dismiss(animated: true)
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
imageView.image = image
updateClassifications(for: image)
错误出现在一行中:
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
【问题讨论】:
【参考方案1】:看来您使用的是 Xcode 10/ios 12。委托方法的签名已更改。
使用UIImagePickerController.InfoKey
而不是String
作为info
键。
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any])
然后使用.originalImage
代替UIImagePickerControllerOriginalImage
。
extension ImageClassificationViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any])
picker.dismiss(animated: true)
let image = info[.originalImage] as! UIImage
imageView.image = image
updateClassifications(for: image)
【讨论】:
以上是关于错误:无法使用“UIImagePickerController.InfoKey”类型的索引为“[String:Any]”类型的值下标 [重复]的主要内容,如果未能解决你的问题,请参考以下文章
SwiftUI 全屏 UIImagePickerController(相机)
裁剪和旋转 UIImagePickerController 选择的照片