如何在macOS上的``照片''应用中访问照片

Question

I'm trying to access photos stored in macOS Photos app and have this code in ViewController class.

import Cocoa
import Photos

class vcSecond: NSViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    let fetchOptions = PHFetchOptions()
    fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]
    let identifiers = PHPhotoLibrary.localIdentifiers(PHPhotoLibrary())
    let assets = PHAsset.fetchAssets(withLocalIdentifiers: identifiers, options: fetchOptions)
    print(assets.count)
}
}

and I'm struggled with getting of localIdentifiers for fetchAssets method. XCode gives me error "Cannot convert value of type '([PHCloudIdentifier]) -> [String]' to expected argument type '[String]'". There are many code samples availbale for iOS but much lees for macOS. Is anyone willing to share some codes and/or provide any hints? Thanks.

Answer 1

Well if all you are trying to do is access the photos then to open the Photo app just add this code snippet to your controller

override func viewDidLoad() {
    super.viewDidLoad()

    NSWorkspace.shared.open(URL(fileURLWithPath: "/Applications/Photos.app"))
}

Also, see this thread: How to get all PHAssets from MacOS's Photo Library