If you have a s-device then you unlock your device with your fingerprint. We have an use-case in where we want to force the user to give his pincode when the app have been idle for say one hour.
Is that possible? And if so how can we implement that?
Is it possible to force to ask for the pincode instead of fingerprint?
You'll need to devise your own passcode & timer scheme for your app. This would have nothing to do with touchID or master passcode.
You might want to look at
kSecAccessControlDevicePasscodeShare and Enjoy
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Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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