From the course: Biometric Authentication for iOS in Swift

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Reuse duration

Reuse duration

From the course: Biometric Authentication for iOS in Swift

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Reuse duration

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- [Instructor] Now, we want to talk about one more setting you can specify on the context that can be good for your user experience. So, on line 22 I'm going to type context.touchIDAuthenticationAllowableReuseDuration. This is the time in seconds that if the user unlocks their phone with Touch ID, they don't have to reauthenticate themselves for your app. That means if the user unlocked their phone with their finger, and then they opened your app 10 seconds later, say, they don't have to authenticate again. You can specify the amount of time where that authentication is reused. So, maybe you want to allow 15 seconds, you can specify 15, maybe 60 seconds, give 'em a whole minute. There's also a maximum allowed called LATouchIDAuthenticationMaximumAllowableReuseDuration, just rolls off the tongue, doesn't it? And if we do a Control + Command + Click on that we can see that it's a time interval. At the time of this recording, that value is 300. So, it's five minutes. That's the maximum…

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