CameraManager.RegisterAvailabilityCallback Method
Definition
Important
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Overloads
| Name | Description |
|---|---|
| RegisterAvailabilityCallback(CameraManager+AvailabilityCallback, Handler) |
Register a callback to be notified about camera device availability. |
| RegisterAvailabilityCallback(IExecutor, CameraManager+AvailabilityCallback) |
Register a callback to be notified about camera device availability. |
RegisterAvailabilityCallback(CameraManager+AvailabilityCallback, Handler)
Register a callback to be notified about camera device availability.
[Android.Runtime.Register("registerAvailabilityCallback", "(Landroid/hardware/camera2/CameraManager$AvailabilityCallback;Landroid/os/Handler;)V", "")]
public void RegisterAvailabilityCallback(Android.Hardware.Camera2.CameraManager.AvailabilityCallback callback, Android.OS.Handler? handler);[<Android.Runtime.Register("registerAvailabilityCallback", "(Landroid/hardware/camera2/CameraManager$AvailabilityCallback;Landroid/os/Handler;)V", "")>]
member this.RegisterAvailabilityCallback : Android.Hardware.Camera2.CameraManager.AvailabilityCallback * Android.OS.Handler -> unitParameters
- callback
- CameraManager.AvailabilityCallback
the new callback to send camera availability notices to
- handler
- Handler
The handler on which the callback should be invoked, or null to use
the current thread's android.os.Looper looper.
- Attributes
Exceptions
if the handler is null but the current thread has
no looper.
Remarks
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
RegisterAvailabilityCallback(IExecutor, CameraManager+AvailabilityCallback)
Register a callback to be notified about camera device availability.
[Android.Runtime.Register("registerAvailabilityCallback", "(Ljava/util/concurrent/Executor;Landroid/hardware/camera2/CameraManager$AvailabilityCallback;)V", "", ApiSince=28)]
public void RegisterAvailabilityCallback(Java.Util.Concurrent.IExecutor executor, Android.Hardware.Camera2.CameraManager.AvailabilityCallback callback);[<Android.Runtime.Register("registerAvailabilityCallback", "(Ljava/util/concurrent/Executor;Landroid/hardware/camera2/CameraManager$AvailabilityCallback;)V", "", ApiSince=28)>]
member this.RegisterAvailabilityCallback : Java.Util.Concurrent.IExecutor * Android.Hardware.Camera2.CameraManager.AvailabilityCallback -> unitParameters
- executor
- IExecutor
The executor which will be used to invoke the callback. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
- callback
- CameraManager.AvailabilityCallback
the new callback to send camera availability notices to
- Attributes
Remarks
Register a callback to be notified about camera device availability.
The behavior of this method matches that of registerAvailabilityCallback(AvailabilityCallback,Handler), except that it uses Executor as an argument instead of Handler.
Note: If the order between some availability callbacks matters, the implementation of the executor should handle those callbacks in the same thread to maintain the callbacks' order.
Android reference for android.hardware.camera2.CameraManager.registerAvailabilityCallback.
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.