Camera.PreviewCallback
public
static
interface
Camera.PreviewCallback
| android.hardware.Camera.PreviewCallback |
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.
See also:
Summary
Public methods | |
|---|---|
abstract
void
|
onPreviewFrame(byte[] data, Camera camera)
Called as preview frames are displayed. |
Public methods
onPreviewFrame
Added in API level 1
public abstract void onPreviewFrame (byte[] data,
Camera camera)Called as preview frames are displayed. This callback is invoked
on the event thread Camera.open(int) was called from.
If using the 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 |
byte: the contents of the preview frame in the format defined
by ImageFormat, which can be queried
with Camera.Parameters.getPreviewFormat().
If Camera.Parameters.setPreviewFormat(int)
is never called, the default will be the YCbCr_420_SP
(NV21) format. |
camera |
Camera: the Camera service object. |