如何获取从 Swift 中的 UIImagePickerController 中选择的照片的 CLLocation？

Question

UIImagePickerController 从用户的照片库中选择一张图片，

我只想获取所选照片的位置坐标，在Swift...

我已经尝试过尝试获取照片的 url...

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
    let imageURL = editingInfo![UIImagePickerControllerReferenceURL] as! NSURL
    self.imageFromAsset(imageURL)
}

并将其传递给...

func imageFromAsset(nsurl: NSURL) {
    let asset = PHAsset.fetchAssetsWithALAssetURLs([nsurl], options: nil).firstObject as! PHAsset
    var location = asset.location   //then do something with this data
}

但是开始获取图像 url 会产生致命错误。

希望有人能帮忙，谢谢。

错误信息：

fatal error: unexpectedly found nil while unwrapping an Optional value
(lldb)

此错误似乎出现在这一行：

    let imageURL = editingInfo![UIImagePickerControllerReferenceURL] as! NSURL

Answer 1

使用：

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

而不是：

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

因为它在 iOS 3.0

中已弃用

https://developer.apple.com/reference/uikit/uiimagepickercontrollerdelegate/1619152-imagepickercontroller

如何获取从 Swift 中的 UIImagePickerController 中选择的照片的 CLLocation？

How can I get the CLLocation of a photo selected from UIImagePickerController in Swift?

uiimagepickercontroller

cllocation

swift

phasset