Added support for haptic feedback when interacting with the popup.

PBPopupController/PBPopupController/PBPopupController-Swift/PBPopupController.swift

@@ -409,7 +409,22 @@ extension PBPopupPresentationStyle
  The status bar style of the popup content view controller. Return this value when you override the preferredStatusBarStyle variable.
  */
  @objc public var popupStatusBarStyle: UIStatusBarStyle = .default
-
+
+ /**
+ Controls whether interaction with the popup generates haptic feedback to the user. The default value is `true`.
+ */
+ @objc public var allowPopupHapticFeedbackGeneration: Bool = true
+
+ /**
+ The soft soimpact feedback specific intensity. A value between 0.0 and 1.0.
+ */
+ @objc public var softFeedbackGeneratorIntensity: CGFloat = 0.6
+
+ /**
+ The rigid impact feedback specific intensity. A value between 0.0 and 1.0.
+ */
+ @objc public var rigidFeedbackGeneratorIntensity: CGFloat = 0.7
+
  // MARK: - Private Properties
 
  @objc internal weak var containerViewController: UIViewController!
@@ -460,6 +475,9 @@ extension PBPopupPresentationStyle
  internal var popupPresentationInteractiveController: PBPopupInteractivePresentationController!
  internal var popupDismissalInteractiveController: PBPopupInteractivePresentationController!
 
+ private var softFeedbackGenerator: UIImpactFeedbackGenerator!
+ private var rigidFeedbackGenerator: UIImpactFeedbackGenerator!
+
  private weak var previewingContext: UIViewControllerPreviewing?
 
  internal func dropShadowViewFor(_ view: UIView) -> UIView?
@@ -528,6 +546,9 @@ extension PBPopupPresentationStyle
 
  self.popupPresentationState = .hidden
  self.containerViewController = controller
+
+ self.softFeedbackGenerator = UIImpactFeedbackGenerator(style: .soft)
+ self.rigidFeedbackGenerator = UIImpactFeedbackGenerator(style: .rigid)
  }
 
  required init?(coder aDecoder: NSCoder)
@@ -616,6 +637,40 @@ extension PBPopupPresentationStyle
  return rv
  }
 
+ // MARK: - Popup Bar Haptic Feedback Generation
+
+ private func _prepareSoftFeedback()
+ {
+ if self.allowPopupHapticFeedbackGeneration == false {
+ return
+ }
+ self.softFeedbackGenerator.prepare()
+ }
+
+ private func _generateSoftFeedbackWithIntensity(_ intensity: CGFloat)
+ {
+ if self.allowPopupHapticFeedbackGeneration == false {
+ return
+ }
+ self.softFeedbackGenerator.impactOccurred(intensity: intensity)
+ }
+
+ private func _prepareRigidFeedback()
+ {
+ if self.allowPopupHapticFeedbackGeneration == false {
+ return
+ }
+ self.rigidFeedbackGenerator.prepare()
+ }
+
+ private func _generateRigidFeedbackWithIntensity(_ intensity: CGFloat)
+ {
+ if self.allowPopupHapticFeedbackGeneration == false {
+ return
+ }
+ self.rigidFeedbackGenerator.impactOccurred(intensity: intensity)
+ }
+
  // MARK: - Popup Bar Animation
 
  internal func _presentPopupBarAnimated(_ animated: Bool, completionBlock: (() -> Swift.Void)? = nil)
@@ -790,13 +845,18 @@ extension PBPopupPresentationStyle
 
  @objc internal func popupTapGestureRecognized(tgr: UITapGestureRecognizer)
  {
+ self._prepareRigidFeedback()
+
  if self.delegate?.popupControllerTapGestureShouldBegin?(self, state: self.popupPresentationState) == false {
  return
  }
  if let vc = self.containerViewController {
  if self.delegate?.popupController?(self, shouldOpen: vc.popupContentViewController) == false {
  return
  }
+
+ self._generateRigidFeedbackWithIntensity(self.rigidFeedbackGeneratorIntensity)
+
  vc.popupBar.setHighlighted(true, animated: false)
  self._openPopupAnimated(true) {
  vc.popupBar.setHighlighted(false, animated: false)
@@ -843,6 +903,7 @@ extension PBPopupPresentationStyle
 
  @objc internal func closePopupContent()
  {
+ self._prepareRigidFeedback()
  // The popup content has a popup open. Close it before closing the main popup content.
  if let popupController = UIViewController.getAssociatedPopupControllerFor(self.containerViewController.popupContentViewController) {
  if popupController.popupPresentationState == .open {
@@ -858,6 +919,7 @@ extension PBPopupPresentationStyle
  else {
  // Close popup content.
  if self.popupPresentationState == .open {
+ self._generateRigidFeedbackWithIntensity(self.rigidFeedbackGeneratorIntensity)
  self.closePopupContent(animated: true)
  }
  }
@@ -1143,6 +1205,9 @@ extension PBPopupController: PBPopupInteractivePresentationDelegate
  {
  if let vc = self.containerViewController {
  self.popupContentPanGestureRecognizer.isEnabled = false
+
+ self._prepareSoftFeedback()
+
  if self.delegate?.popupController?(self, shouldOpen: vc.popupContentViewController) == false {
  return
  }
@@ -1159,6 +1224,8 @@ extension PBPopupController: PBPopupInteractivePresentationDelegate
  }
  }
 
+ self._generateSoftFeedbackWithIntensity(self.softFeedbackGeneratorIntensity)
+
  vc.present(vc.popupContentViewController, animated: true) {
  if self.popupPresentationState == .opening {
  if let scrollView = vc.popupContentViewController.view as? UIScrollView {
@@ -1189,13 +1256,18 @@ extension PBPopupController: PBPopupInteractivePresentationDelegate
  if self.delegate?.popupController?(self, shouldClose: vc.popupContentViewController) == false {
  return
  }
+
+ self._prepareSoftFeedback()
+
  vc.view.setNeedsLayout()
  vc.view.layoutIfNeeded()
 
  let previousState = self.popupPresentationState
  self.popupPresentationState = .transitioning
  self.delegate?.popupController?(self, stateChanged: self.popupPresentationState, previousState: previousState)
 
+ self._generateSoftFeedbackWithIntensity(self.softFeedbackGeneratorIntensity)
+
  vc.popupContentViewController.dismiss(animated: true) {
  if self.popupPresentationState == .closing {
  if let scrollView = vc.popupContentViewController.view as? UIScrollView {