SamStone92

func showNilError() {
    let alert = UIAlertController(title: "No Heart Rate Data Found", message: "There was no heart rate data found for the selected dates. If you expected to see data, it may be that ARTRate is not authorised to read you heart rate data. Please go to the settings app (Privacy -> HealthKit) to change this.", preferredStyle: UIAlertControllerStyle.alert)
    alert.addAction(UIAlertAction(title: "Okay", style: .cancel, handler: nil))
    alert.addAction(UIAlertAction(title: "Go to settings", style: .default, handler:  { action in
        if let url = URL(string:UIApplicationOpenSettingsURLString) {
            if UIApplication.shared.canOpenURL(url) {
                UIApplication.shared.open(url, options: [:], completionHandler: nil)
            }
        }            }))
    self.present(alert, animated: true, completion: nil)

SamStone92

let health = HKHealthStore()
let heartRateType:HKQuantityType   = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.heartRate)!
var shownWarning : Bool = false

func getHeartRateData()
{
    let startDate = Calendar.current.date(byAdding: .day, value: -5, to: Date())!
    let endDate = Date()
    let predicate = HKQuery.predicateForSamples(withStart: startDate, end: endDate, options: [])
    let sortDescriptors = [

SamStone92

let heartRateType:HKQuantityType   = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.heartRate)!

HKHealthStore().requestAuthorization(toShare: nil, read: [heartRateType]) {(success, error) in
    print(success)
    //Success will always be equal to true unless a genuine error occurs
}

SamStone92

extension LABiometryType {
    var toString : String {
        switch self {
        case .none:
            return "your iPhone pin"
        case .faceID:
            return "FaceID"
        case .touchID:
            return "TouchID"
        }

SamStone92

extension LABiometryType {
    var toString : String {
        switch self {
        case .none:
            return "your iPhone pin"
        case .faceID:
            return "FaceID"
        case .touchID:
            return "TouchID"
        }

SamStone92

func navigationController(_ navigationController: UINavigationController, interactionControllerFor animationController: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
    guard let ci = customInteractor else { return nil }
    return ci.transitionInProgress ? customInteractor : nil
}

SamStone92

func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationControllerOperation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
      guard let frame = self.selectedFrame else { return nil }
      guard let song = self.selectedSong else { return nil }

      switch operation {
      case .push:
          self.customInteractor = CustomInteractor(attachTo: toVC)
          return CustomAnimator(duration: TimeInterval(UINavigationControllerHideShowBarDuration), isPresenting: true, originFrame: frame, image: song.artwork)
      default:
          return CustomAnimator(duration: TimeInterval(UINavigationControllerHideShowBarDuration), isPresenting: false, originFrame: frame, image: song.artwork)

SamStone92

@objc private func handleBackGesture(_ gesture : UIScreenEdgePanGestureRecognizer) {
    let viewTranslation = gesture.translation(in: gesture.view?.superview)
    var progress = viewTranslation.x / self.navigationController.view.frame.width

    switch gesture.state {
    case .began:
        transitionInProgress = true
        navigationController.popViewController(animated: true)
        break
    case .changed:

SamStone92

let viewTranslation = gesture.translation(in: gesture.view?.superview)
var progress = viewTranslation.x / self.navigationController.view.frame.width

SamStone92

    private func setupBackGesture(view : UIView) {
        let swipeBackGesture = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(handleBackGesture(_:)))
        swipeBackGesture.edges = .left
        view.addGestureRecognizer(swipeBackGesture)
    }
    
    @objc private func handleBackGesture(_ gesture : UIScreenEdgePanGestureRecognizer) {

    }