SwiftUI PhotosPicker Photo Location

UI Frameworks SwiftUI
zach.m OP
Created
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Is there any way to get photo location information from a picked photo using the new Swift PhotosPicker?

Answered by DTS Engineer in 754187022

Yes, once you have loaded the PhotosPickerItem as some transferable type (and assuming the underlying asset actually has location metadata), you can utilize a framework like CoreImage to read the location metadata:

        // `url` here came from the PhotosPickerItem, which was loaded as a Transferable type that had a FileRepresentation.
        let image = CIImage(contentsOf: url)!
        
        let properties = image.properties
        
        if let gps = properties[kCGImagePropertyGPSDictionary as String] as? [String: Any] {
            let lat = gps[kCGImagePropertyGPSLatitude as String] as! Double
            let lon = gps[kCGImagePropertyGPSLongitude as String] as! Double
            
            print(lat, lon)
        }
Replies  2
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Participants  3
DTS Engineer OP
Apple
Accepted Answer

Yes, once you have loaded the PhotosPickerItem as some transferable type (and assuming the underlying asset actually has location metadata), you can utilize a framework like CoreImage to read the location metadata:

        // `url` here came from the PhotosPickerItem, which was loaded as a Transferable type that had a FileRepresentation.
        let image = CIImage(contentsOf: url)!
        
        let properties = image.properties
        
        if let gps = properties[kCGImagePropertyGPSDictionary as String] as? [String: Any] {
            let lat = gps[kCGImagePropertyGPSLatitude as String] as! Double
            let lon = gps[kCGImagePropertyGPSLongitude as String] as! Double
            
            print(lat, lon)
        }
meetkarthiksv OP 
                                if let uiImage = UIImage(data: data) {
                                    pictureCaptionViewModel.inputImage = uiImage
                                    let image = CIImage(cgImage: uiImage.cgImage!)
                                    let properties = image.properties
                                    
                                    if let gps = properties[kCGImagePropertyGPSDictionary as String] as? [String: Any] {
                                        let lat = gps[kCGImagePropertyGPSLatitude as String] as! Double
                                        let lon = gps[kCGImagePropertyGPSLongitude as String] as! Double
                                        
                                        print(lat, lon)
                                    }

                                }
                            }

I was not able to get the the lat lon. I loaded the image(with location) using PhotoPicker.