CameraSourceConfig.Builder

AI-generated Key Takeaways

• CameraSourceConfig.Builder facilitates the creation and configuration of CameraSourceConfig instances for camera-based vision tasks.

• It allows developers to specify the camera facing (front or back), desired preview size, and links a vision detector with a callback for processing detection results.

• The builder pattern simplifies the configuration process and provides a clear way to set various parameters before building the final CameraSourceConfig object.

• Developers use build() to create an immutable CameraSourceConfig instance based on the builder's current configuration.

public static class CameraSourceConfig.Builder extends Object

Builder for CameraSourceConfig.

Public Constructor Summary

<ResultT>

Builder(Context context, Detector<ResultT> detector, DetectionTaskCallback<ResultT> detectionTaskCallback) Creates a CameraSourceConfig builder with the supplied context, a vision Detector and a post detection DetectionTaskCallback.

Public Method Summary

CameraSourceConfig	build()
CameraSourceConfig.Builder	setFacing(int facing) Sets the camera to use (either CameraSourceConfig.CAMERA_FACING_BACK or CameraSourceConfig.CAMERA_FACING_FRONT).
CameraSourceConfig.Builder	setRequestedPreviewSize(int width, int height) Sets the desired width and height of the camera frames in pixels.

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

Public Constructors

public Builder (Context context, Detector<ResultT> detector, DetectionTaskCallback<ResultT> detectionTaskCallback)

Creates a CameraSourceConfig builder with the supplied context, a vision Detector and a post detection DetectionTaskCallback. Camera preview images will be streamed to the associated detector upon starting the camera source.

Public Methods

public CameraSourceConfig build ()

public CameraSourceConfig.Builder setFacing (int facing)

Sets the camera to use (either CameraSourceConfig.CAMERA_FACING_BACK or CameraSourceConfig.CAMERA_FACING_FRONT). Default: CameraSourceConfig.CAMERA_FACING_BACK.

public CameraSourceConfig.Builder setRequestedPreviewSize (int width, int height)

Sets the desired width and height of the camera frames in pixels. If the exact desired values are not available options, the best matching available options are selected.

We pass the desired size to CameraX and let CameraX choose the best available size.

Default: 480x360.