CameraCaptureCallback

Kotlin |Java

@RequiresApi(21) abstract class CameraCaptureCallback

kotlin.Any
↳	androidx.camera.core.impl.CameraCaptureCallback

Known Direct Subclasses

CameraCaptureCallbacks.ComboCameraCaptureCallback

A CameraCaptureCallback which contains a list of CameraCaptureCallback and will propagate received callback to the list.

A callback object for tracking the progress of a capture request submitted to the camera device. Once one of the methods is called, other methods won't be called again on the same instance.

Summary

Public constructors
`CameraCaptureCallback()` A callback object for tracking the progress of a capture request submitted to the camera device.

Public methods
open Unit	`onCaptureCancelled()` This method is called when the capture request was not submitted to camera device.
open Unit	`onCaptureCompleted(@NonNull cameraCaptureResult: CameraCaptureResult)` This method is called when an image capture has fully completed and all the result metadata is available.
open Unit	`onCaptureFailed(@NonNull failure: CameraCaptureFailure)` This method is called instead of `onCaptureCompleted` when the camera device failed to produce a `CameraCaptureResult` for the request.

Public constructors

CameraCaptureCallback

CameraCaptureCallback()

A callback object for tracking the progress of a capture request submitted to the camera device. Once one of the methods is called, other methods won't be called again on the same instance.

Public methods

onCaptureCancelled

open fun onCaptureCancelled(): Unit

This method is called when the capture request was not submitted to camera device. For Example, requests are cancelled when it is in an inappropriate state (such as closed). After onCaptureCancelled is called, other methods won't be called.

onCaptureCompleted

open fun onCaptureCompleted(@NonNull cameraCaptureResult: CameraCaptureResult): Unit

This method is called when an image capture has fully completed and all the result metadata is available.

Parameters
`cameraCaptureResult`	CameraCaptureResult: The output metadata from the capture.

onCaptureFailed

open fun onCaptureFailed(@NonNull failure: CameraCaptureFailure): Unit

This method is called instead of onCaptureCompleted when the camera device failed to produce a CameraCaptureResult for the request.

Parameters
`failure`	CameraCaptureFailure: The output failure from the capture, including the failure reason.