touch-id

I'm trying to get if Face ID or Touch ID succeeded in the function below func authenticate() -> Bool{ let context = LAContext() var error: NSError? guard context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error) else { return false } var returnValue = false let reason = "Face ID authentication" context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, localizedReason: reason) { isAuthorized, error in guard isAuthorized == true else { return print(error) } returnValue = true print("success") } return returnValue } but even when it succeeds with this code it skips

When compiling my Application with Xcode 9 for IOS11 I get the following warnings: warning: 'touchIDLockout' was deprecated in iOS 11.0: use LAErrorBiometryLockout warning: 'touchIDNotEnrolled' was deprecated in iOS 11.0: use LAErrorBiometryNotEnrolled warning: 'touchIDNotAvailable' was deprecated in iOS 11.0: use LAErrorBiometryNotAvailable I'm using touchID but I'm not using touchIdLockout...cste and the touchID is working correctly. How can I remove these warnings? Edit (not by the original author): I tracked this down to a single cause. It's enough to reference LAError from the

I Added ios-8's new touchID API to my app. It usually works as expected, BUT when entering app while my finger is already on home-button - API's success callback is called but pop-up still appears on screen. after pressing CANCEL UI becomes non-responsive. I also encountered the same issue, and the solution was to invoke the call to the Touch ID API using a high priority queue, as well as a delay: // Touch ID must be called with a high priority queue, otherwise it might fail. // Also, a dispatch_after is required, otherwise we might receive "Pending UI mechanism already set." dispatch_queue_t

I have been working on integrating Touch ID support into an app I am working on. It is however acting very inconsistent. One of the common issues I am seeing is on a fresh app launch it works as expected, but then on backgrounding the app, and bringing it to the foreground I am getting an error back from evaluatePolicy:localizedReason:reply: It does not even make a lot of sense (I never see the touchid alert) Error Domain=com.apple.LocalAuthentication Code=-1004 "User interaction is required." UserInfo=0x171470a00 {NSLocalizedDescription=User interaction is required.} I have tried presenting

I'm working on a peace of code that should do the following: Store some data in Keychain. Get the data only if a user authenticates with Touch ID or Pass Code. I watched the Keychain and Authentication with Touch ID presentation and understood the following: If you set the right parameter while adding a new value in to Keychain, next time you'll try to get it out, the system will automatically show the Touch ID popup. I wrote some code, and my assumption doesn't work. This is what I have written: // // Secret value to store // let valueData = "The Top Secret Message V1".data(using: .utf8)!; //

In my app I am trying to detect which user is trying to log in using touchId. Is there any mechanism which can help me distinguish between users depending on touch Ids of users. I assume that you are only assuming 1 one user per device since touch id isn't really setup for multiple users on a single device. Since you already know which device your app is running on there would be no need to get this information from TouchID. 来源： https://stackoverflow.com/questions/34613951/know-which-user-logging-into-app-depending-on-touchid-in-ios