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BiometricPrompt.Authenticate Method

Definition

Overloads

Authenticate(CancellationSignal, IExecutor, BiometricPrompt+AuthenticationCallback)

This call warms up the biometric hardware, displays a system-provided dialog, and starts scanning for a biometric.

Authenticate(BiometricPrompt+CryptoObject, CancellationSignal, IExecutor, BiometricPrompt+AuthenticationCallback)

This call warms up the biometric hardware, displays a system-provided dialog, and starts scanning for a biometric.

Authenticate(CancellationSignal, IExecutor, BiometricPrompt+AuthenticationCallback)

This call warms up the biometric hardware, displays a system-provided dialog, and starts scanning for a biometric.

[Android.Runtime.Register("authenticate", "(Landroid/os/CancellationSignal;Ljava/util/concurrent/Executor;Landroid/hardware/biometrics/BiometricPrompt$AuthenticationCallback;)V", "GetAuthenticate_Landroid_os_CancellationSignal_Ljava_util_concurrent_Executor_Landroid_hardware_biometrics_BiometricPrompt_AuthenticationCallback_Handler", ApiSince=28)]
[Android.Runtime.RequiresPermission("android.permission.USE_BIOMETRIC")]
public virtual void Authenticate (Android.OS.CancellationSignal cancel, Java.Util.Concurrent.IExecutor executor, Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback callback);
[<Android.Runtime.Register("authenticate", "(Landroid/os/CancellationSignal;Ljava/util/concurrent/Executor;Landroid/hardware/biometrics/BiometricPrompt$AuthenticationCallback;)V", "GetAuthenticate_Landroid_os_CancellationSignal_Ljava_util_concurrent_Executor_Landroid_hardware_biometrics_BiometricPrompt_AuthenticationCallback_Handler", ApiSince=28)>]
[<Android.Runtime.RequiresPermission("android.permission.USE_BIOMETRIC")>]
abstract member Authenticate : Android.OS.CancellationSignal * Java.Util.Concurrent.IExecutor * Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback -> unit
override this.Authenticate : Android.OS.CancellationSignal * Java.Util.Concurrent.IExecutor * Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback -> unit

Parameters

cancel
CancellationSignal

An object that can be used to cancel authentication.

executor
IExecutor

An executor to handle callback events.

callback
BiometricPrompt.AuthenticationCallback

An object to receive authentication events.

Attributes

Remarks

Java documentation for android.hardware.biometrics.BiometricPrompt.authenticate(android.hardware.biometrics.CryptoObject, android.os.CancellationSignal, java.util.concurrent.Executor, android.hardware.biometrics.AuthenticationCallback).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

Authenticate(BiometricPrompt+CryptoObject, CancellationSignal, IExecutor, BiometricPrompt+AuthenticationCallback)

This call warms up the biometric hardware, displays a system-provided dialog, and starts scanning for a biometric.

[Android.Runtime.Register("authenticate", "(Landroid/hardware/biometrics/BiometricPrompt$CryptoObject;Landroid/os/CancellationSignal;Ljava/util/concurrent/Executor;Landroid/hardware/biometrics/BiometricPrompt$AuthenticationCallback;)V", "GetAuthenticate_Landroid_hardware_biometrics_BiometricPrompt_CryptoObject_Landroid_os_CancellationSignal_Ljava_util_concurrent_Executor_Landroid_hardware_biometrics_BiometricPrompt_AuthenticationCallback_Handler", ApiSince=28)]
[Android.Runtime.RequiresPermission("android.permission.USE_BIOMETRIC")]
public virtual void Authenticate (Android.Hardware.Biometrics.BiometricPrompt.CryptoObject crypto, Android.OS.CancellationSignal cancel, Java.Util.Concurrent.IExecutor executor, Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback callback);
[<Android.Runtime.Register("authenticate", "(Landroid/hardware/biometrics/BiometricPrompt$CryptoObject;Landroid/os/CancellationSignal;Ljava/util/concurrent/Executor;Landroid/hardware/biometrics/BiometricPrompt$AuthenticationCallback;)V", "GetAuthenticate_Landroid_hardware_biometrics_BiometricPrompt_CryptoObject_Landroid_os_CancellationSignal_Ljava_util_concurrent_Executor_Landroid_hardware_biometrics_BiometricPrompt_AuthenticationCallback_Handler", ApiSince=28)>]
[<Android.Runtime.RequiresPermission("android.permission.USE_BIOMETRIC")>]
abstract member Authenticate : Android.Hardware.Biometrics.BiometricPrompt.CryptoObject * Android.OS.CancellationSignal * Java.Util.Concurrent.IExecutor * Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback -> unit
override this.Authenticate : Android.Hardware.Biometrics.BiometricPrompt.CryptoObject * Android.OS.CancellationSignal * Java.Util.Concurrent.IExecutor * Android.Hardware.Biometrics.BiometricPrompt.AuthenticationCallback -> unit

Parameters

crypto
BiometricPrompt.CryptoObject

A cryptographic operation to be unlocked after successful authentication.

cancel
CancellationSignal

An object that can be used to cancel authentication.

executor
IExecutor

An executor to handle callback events.

callback
BiometricPrompt.AuthenticationCallback

An object to receive authentication events.

Attributes

Remarks

Java documentation for android.hardware.biometrics.BiometricPrompt.authenticate(android.hardware.biometrics.CryptoObject, android.os.CancellationSignal, java.util.concurrent.Executor, android.hardware.biometrics.AuthenticationCallback).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to