FUIPasscodeCreateController

public class FUIPasscodeCreateController: FUIPasscodeController, FUIPasscodeViewDelegate, FUITouchIDViewDelegate

This UIViewController is to be used by app to setup the passcode and enabling Touch ID screen flows.

Before the navigation controller presents this FUIPasscodeCreateController, the following property needs to be set:

• delegate: An implementation of FUIPasscodeControllerDelegate to hanle events from this controller.

Application can also set this property for more passcode validation checks:

• validationDelegate: An implementation of FUIPasscodeValidationDelegate to validate the passcode user entered.

Here is the screen flow:

• The first screen prompts user to enter passcode. After user entered the passcode which is validated with the FUIPasscodePolicy. The FUIPasscodeValidationDelegate provided function validate of validationDelegate is invoked for additional validation. If validation success, the next screen will be displayed; otherwise, the function throws FUIPasscodeControllerError when validation fails.
• The second screen prompts user to enter passcode again to verify with the passcode entered in the first screen. The third screen will be displayed when the passcode entered matched the passcode entered and touch ID is allowed in FUIPasscodePolicy.
• The third screen prompts user to decide if enable Touch ID authentication or not. If user chooses Enable the passcode is saved as a Touch ID protected keychain item so that the passcode could be retrieved by FUIPasscodeInputController later with Touch ID.

After the setup is done, either with the third screen or not, the function shouldTryPasscode of the FUIPasscodeControllerDelegate is invoked. The delegate should either create a secure store with the passcode, or save the passcode in a secure manner.

This passcode create flow is implemented in FUIPasscodeCreateController.storyboard. There are two ways to invoke it:

• Use another story board and using a Present Modally segue to FUIPasscodeCreateController storyboard in SAPFiori’s framework bundle com.sap.cp.sdk.ios.SAPFiori. App programmer needs to provide the properties needed in UIController’s prepare for segue function:

 override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
     let destination = segue.destination as! UINavigationController
     let vc0 = destination.viewControllers[0]
     let vc = vc0 as! FUIPasscodeCreateController
     vc.delegate = passcodeControllerDelegate
 }

• Programmatically loads it:

 let storyboard = UIStoryboard(name: "FUIPasscodeCreateController", bundle: bundle)
 let vc = storyboard.instantiateViewController(withIdentifier: "PasscodeCreateFirstViewController")
 let passcodeVC = vc as! FUIPasscodeCreateController

 // present the passcode view
 let navController = UINavigationController(rootViewController: passcodeVC)
 self.navigationController?.present(navController, animated: true, completion: nil)