Swift 4.2无法将类型'(UIImagePickerController.InfoKey).Type'的值转换为预期的参数类型'UIImagePickerController.InfoKey'
问题描述：
我的以下代码在swift 4上工作正常，但是升级到swift 4.2之后，出现此错误，我浪费了3个小时来查找问题所在，但失败了.请任何人指导我如何解决此问题.
My below code was working just fine with swift 4 but after upgrading to swift 4.2 I am getting this error, I had wasted my 3 hours searching what's the issue but failed. Please if anyone can guide me how to fix this.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if postType == 2 {
let image = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey)] as! UIImage
mediaType.image = image
} else {
videoURL = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.mediaURL)] as? URL
do {
let asset = AVURLAsset(url: videoURL!, options: nil)
let imgGenerator = AVAssetImageGenerator(asset: asset)
imgGenerator.appliesPreferredTrackTransform = true
let cgImage = try imgGenerator.copyCGImage(at: CMTime.init(value: 0, timescale: 1), actualTime: nil)
let thumbnail = UIImage(cgImage: cgImage)
self.mediaType.image = thumbnail
} catch {
print("*** Error generating thumbnail: \(error)")
}
}
picker.dismiss(animated: true, completion: nil)
}
答
您可以这样写...
if let image = info[.originalImage] as? UIImage {
print("image found")
//do something with an image
} else {
print("Not able to get an image")
}
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
//for original image
let originalImage = info[.originalImage]
//for edited image
let editedImage = info[.editedImage]
if #available(iOS 11.0, *) {
//gives URL of image picked by user
let imageURL = info[.imageURL]
}
//gives URL of media picked by user
let mediaURL = info[.mediaURL]
}