Package com.cognex.cmbsdk.cameramanager

Class CameraManager

java.lang.Object

com.cognex.cmbsdk.cameramanager.CognexCameraManager

com.cognex.cmbsdk.cameramanager.CameraManager

public final class CameraManager
extends CognexCameraManager

Represents a static CameraManager class.

Nested Class Summary

Nested classes/interfaces inherited from class com.cognex.cmbsdk.cameramanager.CognexCameraManager

CognexCameraManager.CameraStateCallback

Field Summary

Fields

Modifier and Type	Field	Description
android.hardware.Camera	camera
static boolean	useBufferedCallback

Fields inherited from class com.cognex.cmbsdk.cameramanager.CognexCameraManager

cameraInitialized, focusTimer, mDesiredResolution, previewing, REFOCUSING_DELAY, resources, SHOW_CAMERA_DRIVER_ERRORS_AS_TOAST, USE_FRONT_CAMERA, windowManager

Constructor Summary

Constructors

Constructor	Description
CameraManager(android.view.WindowManager windowManager, android.content.res.Resources resources)

Method Summary

Modifier and Type	Method	Description
void	closeDriver()	Closes the Camera object and releases resources.
android.graphics.Point	getCurrentResolution()
int	getDeviceDefaultOrientation()
float[]	getExposureCompensationRange()
android.graphics.Point	getMaxResolution()
int	getMaxZoom()	Gets the maximum zoom level the Camera supports.
boolean	isTorchAvailable()	Checks torch availability.
void	openDriver(android.view.TextureView textureView, CognexCameraManager.CameraStateCallback cameraStateCallback)	Invokes Camera.open and configures the Camera.
void	requestPreviewFrame(android.os.Handler handler, int message)	Requests a preview frame.
void	setCameraDisplay()	Sets the camera display orientation.
void	setDesiredPreviewSize(CameraPreviewResolution cameraPreviewResolution)	Select desired camera resolution.
void	setExposureCompensation(float value)
void	setTorch(boolean enabled)	Turns the torch on or off.
void	setZoom(int zoom, boolean isPreviewing)	Sets the Camera zoom level.
void	startFocusing()
void	startPreview()	Starts the Camera Preview and starts focusing.
void	stopFocusing()
void	stopPreview()	Stops the Camera Preview and stops focusing.
void	updateCameraOrientation(int rotation)

Methods inherited from class com.cognex.cmbsdk.cameramanager.CognexCameraManager

renderCroppedGreyscaleBitmap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

useBufferedCallback

public static boolean useBufferedCallback

camera

public android.hardware.Camera camera

Constructor Details

CameraManager

public CameraManager(android.view.WindowManager windowManager,
 android.content.res.Resources resources)

Method Details

getMaxResolution

public android.graphics.Point getMaxResolution()

setDesiredPreviewSize

public void setDesiredPreviewSize(CameraPreviewResolution cameraPreviewResolution)

Description copied from class: CognexCameraManager

Select desired camera resolution. Not all devices supports all resolutions, closest available will be chosen. If not selected, closest match to screen resolution will be chosen. High resolutions will slow down scanning process on slower devices.

Overrides:

setDesiredPreviewSize in class CognexCameraManager

Parameters:

cameraPreviewResolution - desired preview resolution

getCurrentResolution

public android.graphics.Point getCurrentResolution()

Specified by:

getCurrentResolution in class CognexCameraManager

openDriver

public void openDriver(android.view.TextureView textureView,
 CognexCameraManager.CameraStateCallback cameraStateCallback)
                throws RuntimeException

Invokes Camera.open and configures the Camera.

Overrides:

openDriver in class CognexCameraManager

Parameters:

textureView - active texture view

Throws:

RuntimeException - error when camera open fails after multiple tries

getMaxZoom

public int getMaxZoom()

Gets the maximum zoom level the Camera supports.

Specified by:

getMaxZoom in class CognexCameraManager

Returns:

int max zoom level

setZoom

public void setZoom(int zoom,
 boolean isPreviewing)

Sets the Camera zoom level.

Specified by:

setZoom in class CognexCameraManager

Parameters:

zoom - zoom level

isTorchAvailable

public boolean isTorchAvailable()

Checks torch availability.

Specified by:

isTorchAvailable in class CognexCameraManager

Returns:

boolean torch availability

setTorch

public void setTorch(boolean enabled)

Turns the torch on or off.

Specified by:

setTorch in class CognexCameraManager

Parameters:

enabled - set to true to turn torch on

getExposureCompensationRange

public float[] getExposureCompensationRange()

Specified by:

getExposureCompensationRange in class CognexCameraManager

setExposureCompensation

public void setExposureCompensation(float value)

Specified by:

setExposureCompensation in class CognexCameraManager

closeDriver

public void closeDriver()

Closes the Camera object and releases resources.

Specified by:

closeDriver in class CognexCameraManager

startFocusing

public void startFocusing()

Specified by:

startFocusing in class CognexCameraManager

stopFocusing

public void stopFocusing()

Overrides:

stopFocusing in class CognexCameraManager

startPreview

public void startPreview()
                  throws RuntimeException

Starts the Camera Preview and starts focusing.

Specified by:

startPreview in class CognexCameraManager

Throws:

RuntimeException

stopPreview

public void stopPreview()

Stops the Camera Preview and stops focusing.

Specified by:

stopPreview in class CognexCameraManager

requestPreviewFrame

public void requestPreviewFrame(android.os.Handler handler,
 int message)

Requests a preview frame.

Specified by:

requestPreviewFrame in class CognexCameraManager

Parameters:

handler - handler to send the frame to

message - message to pass the handler

getDeviceDefaultOrientation

public int getDeviceDefaultOrientation()

updateCameraOrientation

public void updateCameraOrientation(int rotation)

setCameraDisplay

public void setCameraDisplay()

Sets the camera display orientation.

Specified by:

setCameraDisplay in class CognexCameraManager