Determine if the access to photo library is set or not - PHPhotoLibrary

Question

With the new functionality in iOS 8, if you are using a camera in the app, it will ask for permission to access the camera and then when you try to retake the pic, it asks f

Answer 1

Just as formality, Swift 2.X version:

    func checkPhotoLibraryPermission() {
       let status = PHPhotoLibrary.authorizationStatus()
       switch status {
       case .Authorized:
            //handle authorized status
       case .Denied, .Restricted :
            //handle denied status
       case .NotDetermined:
            // ask for permissions
            PHPhotoLibrary.requestAuthorization() { (status) -> Void in
               switch status {
               case .Authorized:
                   // as above
               case .Denied, .Restricted:
                   // as above
               case .NotDetermined:
                   // won't happen but still
               }
            }
        }
    }

And Swift 3 / Swift 4:

    import Photos

    func checkPhotoLibraryPermission() {
        let status = PHPhotoLibrary.authorizationStatus()
        switch status {
        case .authorized: 
        //handle authorized status
        case .denied, .restricted : 
        //handle denied status
        case .notDetermined: 
            // ask for permissions
            PHPhotoLibrary.requestAuthorization { status in
                switch status {
                case .authorized: 
                // as above
                case .denied, .restricted: 
                // as above
                case .notDetermined: 
                // won't happen but still
                }
            }
        }
    }