Android 12 provides new APIs to improve our applications’ biometric authentication user experience.
BiometricManager.Strings class added to the BiometricManager which has 3 methods that expose the String values that we can use for prompt message, button label, and settings label.
Methods
getButtonLabel(): returns a localized string that can be used as the text of a view that invokes BiometricPrompt(e.g button’s text)
Press enter or click to view image in full size
Button’s text
getPromptMessage(): returns a localized string that can be shown while the user is authenticating with BiometricPrompt.
getSettingName(): returns a localized string that can be shown as the text for an app setting that enables authentication with BiometricPrompt(e.g switch’s text).
Press enter or click to view image in full size
Setting label
All the methods may return null if none of the requested authenticator types are available.
Returned strings depend on which authentication methods are available on the device:
