Added in API level 1
Deprecated in API level 21

PreviewCallback

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Kotlin |Java

interface PreviewCallback

android.hardware.Camera.PreviewCallback

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This interface was deprecated in API level 21.

We recommend using the new android.hardware.camera2 API for new applications.

Callback interface used to deliver copies of preview frames as they are displayed.

Summary

Public methods
abstract Unit	onPreviewFrame(data: ByteArray!, camera: Camera!) Called as preview frames are displayed.

Public methods

onPreviewFrame

Added in API level 1

abstract fun onPreviewFrame(
    data: ByteArray!, 
    camera: Camera!
): Unit

Deprecated: Deprecated in Java.

Called as preview frames are displayed. This callback is invoked on the event thread open(int) was called from.

If using the android.graphics.ImageFormat#YV12 format, refer to the equations in Camera.Parameters#setPreviewFormat for the arrangement of the pixel data in the preview callback buffers.

Parameters
data	ByteArray!: the contents of the preview frame in the format defined by android.graphics.ImageFormat, which can be queried with android.hardware.Camera.Parameters#getPreviewFormat(). If android.hardware.Camera.Parameters#setPreviewFormat(int) is never called, the default will be the YCbCr_420_SP (NV21) format.
camera	Camera!: the Camera service object.