Camera

An instance of quick access to the camera is provided, an interface for previewing data is obtained, method of managing the life cycle of the camera is encapsulated, and the monitoring of the camera.

Description of functional types

CameraManager

The main methods of operating the camera

Member Function	Description	Version Introduced
CameraManager removePreviewCallbackWithBuffer(PreviewCallback callback)	remove preview data callback	2.0.0
CameraManager addPreviewCallbackWithBuffer(PreviewCallback callback)	add preview data callback	2.0.0
CameraManager getInstance(int cameraId)	get camera instance	2.0.0
CameraManager setDisplayOrientation(int degree)	set Preview Degree	2.0.0
CameraManager setPreviewTexture(SurfaceTexture texture)	set Preview Texture	2.0.0
List getSupportedPreviewSizes()	get the Preview Size Supported by the Camera	2.0.0
void initParameters(int width, int height, int degree, SurfaceTexture surfaceTexture)	Camera Initialization	2.0.0
void openCamera(Context context)	open Camera	2.0.0
void releaseCamera()	release Camera	2.0.0
void startPreview()	start Preview	2.0.0
void stopPreview()	stop Preview	2.0.0

Description of Member Function

CameraManager addPreviewCallbackWithBuffer(PreviewCallback callback)

Add preview data callback

Parameter

Parameter Name	Type	Description	Note	Version Introduced
callback	PreviewCallback	Preview Data Callback	None	2.0.0

Return

Current Object

Exception

None

CameraManager removePreviewCallbackWithBuffer(PreviewCallback callback)

Remove Preview Data Callback

Parameter

Parameter Name	Type	Description	Note	Version Introduced
callback	PreviewCallback	Preview Data Callback	None	2.0.0

Return

Current Object

Exception

None

CameraManager getInstance(int cameraId)

Get camera instance

Parameter

Parameter Name	Type	Description	Note	Version Introduced
cameraId	int	Camera Index	None	2.0.0

Return

Current Object

Exception

None

CameraManager setDisplayOrientation(int degree)

Set Preview Degree, 0/90/180/270 selectable

Parameter

Parameter Name	Type	Description	Note	Version Introduced
degree	int	Degree, 0/90/180/270 selectable	None	2.0.0

Return

Current Object

Exception

None

CameraManager setPreviewTexture(SurfaceTexture texture)

Set Preview Texture

Parameter

Parameter Name	Type	Description	Note	Version Introduced
texture	SurfaceTexture	Preview Texture	None	2.0.0

Return

Current Object

Exception

None

List getSupportedPreviewSizes()

Get the List of Supported Preview Sizes

Parameter

None

Return

Returned Value	Description	Version introduced
List	List of Supported Preview Sizes	2.0.0

Exception

None

void initParameters(int width, int height, int degree, SurfaceTexture surfaceTexture)

Camera Initialization

Parameter

Parameter Name	Type	Description	Note	Version Introduced
width	int	Preview Width	None	2.0.0
height	int	Preview Height	None	2.0.0
degree	int	Preview Degree: 0,90,180,270	None	2.0.0
surfaceTexture	SurfaceTexture	Preview Texture	None	2.0.0

Return

None

Exception

None

void openCamera(Context context)

Open Camera

Parameter

Parameter Name	Type	Description	Note	Version Introduced
context	Context	Context	None	2.0.0

Return

None

Exception

None

void releaseCamera()

Release Camera

Parameter

None

Return

None

Exception

None

void startPreview()

Start Camera Preview

Parameter

None

Return

None

Exception

None

void stopPreview()

Stop Camera Preview

Parameter

None

Return

None

Exception

None

Description of Entities

None