startPreview

@NonNull()
CompletableFuture<Void> startPreview(@NonNull() SurfaceHolder surfaceHolder)
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Starts the preview using the given SurfaceHolder.

Note: the android.view.SurfaceView must have been created when starting the preview.

Return

a CompletableFuture that completes when the preview was started

Parameters

surfaceHolder

the SurfaceHolder for the camera preview android.view.SurfaceView

@NonNull()
CompletableFuture<Void> startPreview()
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Starts the preview using the SurfaceHolder provided by startPreview.

This method has no effect, if no android.view.SurfaceHolder is available.