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interface TransformationInfoListener

Listener that receives updates of the TransformationInfo associated with the SurfaceRequest.


Public methods
abstract Unit

Called when the TransformationInfo is updated.

Public methods


abstract fun onTransformationInfoUpdate(@NonNull transformationInfo: SurfaceRequest.TransformationInfo): Unit

Called when the TransformationInfo is updated.

This is called when the transformation info becomes available or is updated. The rotation degrees is updated after calling Preview#setTargetRotation, and the crop rect is updated after changing the ViewPort associated with the Preview.

transformationInfo SurfaceRequest.TransformationInfo: apply the transformation info to transform Preview