FingerprintGestureController Class
Definition
Important
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An AccessibilityService can capture gestures performed on a device's fingerprint
sensor, as long as the device has a sensor capable of detecting gestures.
[Android.Runtime.Register("android/accessibilityservice/FingerprintGestureController", ApiSince=26, DoNotGenerateAcw=true)]
public sealed class FingerprintGestureController : Java.Lang.Object[<Android.Runtime.Register("android/accessibilityservice/FingerprintGestureController", ApiSince=26, DoNotGenerateAcw=true)>]
type FingerprintGestureController = class
inherit Object- Inheritance
- Attributes
Remarks
An AccessibilityService can capture gestures performed on a device's fingerprint sensor, as long as the device has a sensor capable of detecting gestures.
This capability must be declared by the service as AccessibilityServiceInfo#CAPABILITY_CAN_REQUEST_FINGERPRINT_GESTURES. It also requires the permission android.Manifest.permission#USE_FINGERPRINT.
Because capturing fingerprint gestures may have side effects, services with the capability only capture gestures when AccessibilityServiceInfo#FLAG_REQUEST_FINGERPRINT_GESTURES is set.
<strong>Note: </strong>The fingerprint sensor is used for authentication in critical use cases, so services must carefully design their user's experience when performing gestures on the sensor. When the sensor is in use by an app, for example, when authenticating or enrolling a user, the sensor will not detect gestures. Services need to ensure that users understand when the sensor is in-use for authentication to prevent users from authenticating unintentionally when trying to interact with the service. They can use FingerprintGestureCallback#onGestureDetectionAvailabilityChanged(boolean) to learn when gesture detection becomes unavailable.
Multiple accessibility services may listen for fingerprint gestures simultaneously, so services should provide a way for the user to disable the use of this feature so multiple services don't conflict with each other.
android.hardware.fingerprint.FingerprintManager#isHardwareDetected
Java documentation for android.accessibilityservice.FingerprintGestureController.
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.
Properties
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| IsGestureDetectionAvailable |
Gets if the fingerprint sensor's gesture detection is available. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| PeerReference | (Inherited from Object) |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
Methods
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| RegisterFingerprintGestureCallback(FingerprintGestureController+FingerprintGestureCallback, Handler) |
Register a callback to be informed of fingerprint sensor gesture events. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFingerprintGestureCallback(FingerprintGestureController+FingerprintGestureCallback) |
Unregister a listener added with |
| UnregisterFromRuntime() | (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |