Update

Sources/Controllers/PassCode/View/BasePassCodeViewController.swift

@@ -77,7 +77,7 @@ open class BasePassCodeViewController: UIViewController, ConfigurableController
         initialLoadView()
         initialDotNumberConfiguration()
         configureBackgroundNotifications()
-        showBiometricsRequestIfNeeded(with: biometricsAuthorizationHint)
+        showBiometricsRequestIfNeeded()
     }
 
     override open func viewWillAppear(_ animated: Bool) {
@@ -149,12 +149,14 @@ open class BasePassCodeViewController: UIViewController, ConfigurableController
         }
     }
 
-    private func showBiometricsRequestIfNeeded(with description: String) {
+    private func showBiometricsRequestIfNeeded() {
         guard viewModel.isBiometricsEnabled && viewModel.controllerType == .enter else {
             return
         }
 
-        viewModel.authenticateUsingBiometrics(with: description)
+        viewModel.authenticateUsingBiometrics(with: biometricsAuthorizationHint,
+                                              fallback: biometricsFallbackButtonTitle,
+                                              cancel: biometricsCancelButtonTitle)
     }
 
     private func resetUI() {
@@ -166,10 +168,22 @@ open class BasePassCodeViewController: UIViewController, ConfigurableController
 
     /// Returns prompt that appears on touch id system alert
     open var biometricsAuthorizationHint: String {
-        assertionFailure("You should override this var: touchIdHint")
+        assertionFailure("You should override this \(#function)")
         return ""
     }
 
+    /// Returns prompt that appears on touch id system alert
+    open var biometricsFallbackButtonTitle: String? {
+        assertionFailure("You should override this \(#function)")
+        return nil
+    }
+
+    /// Returns prompt that appears on touch id system alert
+    open var biometricsCancelButtonTitle: String? {
+        assertionFailure("You should override this \(#function)")
+        return nil
+    }
+
     /// Override to point certain images
     open func imageFor(type: PinImageType) -> UIImage {
         assertionFailure("You should override this method: imageFor(type: PinImageType)")

Sources/Controllers/PassCode/ViewModel/BasePassCodeViewModel.swift

@@ -100,8 +100,8 @@ open class BasePassCodeViewModel: BaseViewModel {
         passCodeHolder.reset()
     }
 
-    public func authenticateUsingBiometrics(with description: String) {
-        biometricsService.authenticateWithBiometrics(with: description) { [weak self] success, error in
+    public func authenticateUsingBiometrics(with description: String, fallback: String?, cancel: String?) {
+        biometricsService.authenticateWithBiometrics(with: description, fallback: fallback, cancel: cancel) { [weak self] success, error in
             if success {
                 self?.authSucceed(.touchId)
             } else {

Sources/Services/BiometricsService.swift

@@ -38,7 +38,9 @@ public final class BiometricsService {
      Initiates system biometrics authentication process
 
       - parameters:
-        - description: prompt on the system alert that describes what for user should attach finger to device
+        - description: prompt on the system alert
+        - fallback: alternative action button title on system alert
+        - cancel: cancel Button title on the system alert
         - authHandler: callback, with parameter, indicates if user authenticate successfuly
      */
     public func authenticateWithBiometrics(with description: String,