Summary: Ctors | Methods | Inherited Methods

BiometricPrompt.AuthenticationCallback

Kotlin |Java

public static abstract class BiometricPrompt.AuthenticationCallback
extends Object

java.lang.Object
↳	androidx.biometric.BiometricPrompt.AuthenticationCallback

Callback structure provided to BiometricPrompt. Users of BiometricPrompt must provide an implementation of this for listening to fingerprint events.

Summary

Public constructors
`BiometricPrompt.AuthenticationCallback()`

Public methods
`void`	`onAuthenticationError(int errorCode, CharSequence errString)` Called when an unrecoverable error has been encountered and the operation is complete.
`void`	`onAuthenticationFailed()` Called when a biometric is valid but not recognized.
`void`	`onAuthenticationSucceeded(BiometricPrompt.AuthenticationResult result)` Called when a biometric is recognized.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public constructors

BiometricPrompt.AuthenticationCallback

public BiometricPrompt.AuthenticationCallback ()

Public methods

onAuthenticationError

public void onAuthenticationError (int errorCode, 
                CharSequence errString)

Called when an unrecoverable error has been encountered and the operation is complete. No further actions will be made on this object.

Parameters
`errorCode`	`int`: An integer identifying the error message. The error message will usually be one of the BIOMETRIC_ERROR constants.
`errString`	`CharSequence`: A human-readable error string that can be shown on an UI

onAuthenticationFailed

public void onAuthenticationFailed ()

Called when a biometric is valid but not recognized.

onAuthenticationSucceeded

public void onAuthenticationSucceeded (BiometricPrompt.AuthenticationResult result)

Called when a biometric is recognized.

Parameters
`result`	`BiometricPrompt.AuthenticationResult`: An object containing authentication-related data