BiometricManager.Authenticators


interface BiometricManager.Authenticators


Types of authenticators, defined at a level of granularity supported by BiometricManager and BiometricPrompt.

Types may combined via bitwise OR into a single integer representing multiple authenticators (e.g. DEVICE_CREDENTIAL | BIOMETRIC_WEAK).

Summary

Constants

const Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 3 (formerly Strong), as defined by the Android CDD.

const Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 2 (formerly Weak), as defined by the Android CDD.

const Int

The non-biometric credential used to secure the device (i.e. PIN, pattern, or password).

Constants

BIOMETRIC_STRONG

Added in 1.1.0
const val BIOMETRIC_STRONG = 15: Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 3 (formerly Strong), as defined by the Android CDD.

BIOMETRIC_WEAK

Added in 1.1.0
const val BIOMETRIC_WEAK = 255: Int

Any biometric (e.g. fingerprint, iris, or face) on the device that meets or exceeds the requirements for Class 2 (formerly Weak), as defined by the Android CDD.

Note that this is a superset of BIOMETRIC_STRONG and is defined such that BIOMETRIC_STRONG | BIOMETRIC_WEAK == BIOMETRIC_WEAK.

DEVICE_CREDENTIAL

Added in 1.1.0
const val DEVICE_CREDENTIAL = 32768: Int

The non-biometric credential used to secure the device (i.e. PIN, pattern, or password). This should typically only be used in combination with a biometric auth type, such as BIOMETRIC_WEAK.