How obtain GPS data from a photo - ios

Question

I have been trying for a couple of days to find a way to obtain the GPS location from a photo inside the photo library. I'm using the UIImagePicker in order to obtain the photo but no one of the solutions posted on internet seems to work. I understood I should convert the UIImage to PHAsset but everywhere people are using a deprecated method called fetchAssets(withALAssetURLs: [URL], options: PHFetchOptions?). Is there any way to achieve this? Thank you very much

Answer 1

I hope this will help you:-
//step1:- import Photos
//step2:- when you presenting imagepicker controller
if PHPhotoLibrary.authorizationStatus() == .authorized || PHPhotoLibrary.authorizationStatus() == .authorized{
PHPhotoLibrary.requestAuthorization { [weak self](_) in
// Present the UIImagePickerController
self?.present(self!.imagePicker, animated: true, completion: nil)
}
}
swift3.0 and Swift4.0
//step3:-
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
//obtaining saving path
let fileManager = FileManager.default
let documentsPath = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first
let imagePath = documentsPath?.appendingPathComponent("image.jpg")
// extract image from the picker and save it
if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
let data = UIImageJPEGRepresentation(pickedImage, 0.75)
data.write(toFile: localPath!, atomically: true)
}
let coordinate = (info[UIImagePickerControllerPHAsset] as? PHAsset)?.location?.coordinate
print(coordinate?.latitude ?? "No latitude found")
print(coordinate?.longitude ?? "No longitude found")
self.dismiss(animated: true, completion: nil)
}
swift 4.2
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
//obtaining saving path
let fileManager = FileManager.default
let documentsPath = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first
let imagePath = documentsPath?.appendingPathComponent("image.jpg")
// extract image from the picker and save it
if let pickedImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
let imageData = pickedImage.jpegData(compressionQuality: 0.75)
try! imageData?.write(to: imagePath!)
}
let coordinate = (info[UIImagePickerController.InfoKey.phAsset] as? PHAsset)?.location?.coordinate
print(coordinate?.latitude ?? "No latitude found")
print(coordinate?.longitude ?? "No longitude found")
self.dismiss(animated: true, completion: nil)
}
Thanks