attachTo

Uses the provided viewStub with a non-null parent view to inflate view hierarchy of Session which includes rendering camera preview with lenses. If no viewStub is provided then Session does not attempt to render any views while the output of camera preview can be attached to using ImageProcessor.connectOutput.

Calling this method with a non-null viewStub value is equivalent to:

attachTo(viewStub, withPreview = true)

Uses the provided viewStub with a non-null parent view to inflate view hierarchy of Session. If withPreview is false then Session will not render camera preview within the inflated view hierarchy. To render camera preview, an output can be attached explicitly using ImageProcessor.connectOutput.