ViewfinderSurfaceProvider

Artifact: androidx.camera:camera-viewfinder-core

Kotlin |Java

interface ViewfinderSurfaceProvider

A interface implemented by the application to provide a Surface for viewfinder.

This interface is implemented by the application to provide a Surface. This will be called by application when it needs a Surface for viewfinder. It also signals when the Surface is no longer in use.

Summary

Public functions
`Unit`	`onSurfaceRequested(request: ViewfinderSurfaceRequest)` Called when a new `Surface` has been requested by the frame producer.

Public functions

onSurfaceRequested

Added in 1.4.0-alpha05

fun onSurfaceRequested(request: ViewfinderSurfaceRequest): Unit

Called when a new Surface has been requested by the frame producer.

This is called every time a new surface is required to keep the viewfinder running. The producer may repeatedly request surfaces, but only a single request will be active at a time.

Parameters
`request: ViewfinderSurfaceRequest`	the request for a surface which contains the requirements of the surface and methods for completing the request.