Applying FLAG_DISMISS_KEYGUARD to an action before a date will open an insecure key lock. And in the case of a secure keypad lock, it will give a hint with a PIN code.
On devices with a fingerprint sensor, such as the Nexus 6P or 5X (Marshmallow 6.0), the flag triggers a pin lock invitation, while a tooltip is displayed, the fingerprint sensor vibrates but does not work to unlock.
So, is there an official way to use the flag on fingerprint sensor devices?
EDIT: I'm not quite sure if the PIN lock hint is displayed, I cannot test specifically since I don't have a device. But I'm sure the flag does not include fingerprint sensor logic
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