Merge "Intercept NPE in ActivityTransitionAnimator." into main

            ViewTransitionRegistry.instance

        } else {

            null

        }

        },

) : ActivityTransitionAnimator.Controller {

    override val isLaunching: Boolean = true

        // visibility that is saved by `setShouldBlockVisibilityChanges()` for a later restoration.

        (ghostedView as? LaunchableView)?.setShouldBlockVisibilityChanges(true)

        // Create a ghost of the view that will be moving and fading out. This allows to fade out

        // the content before fading out the background.

        try {

            // Create a ghost of the view that will be moving and fading out. This allows to fade

            // out the content before fading out the background.

            ghostView = GhostView.addGhost(ghostedView, transitionContainer)

        } catch (e: Exception) {

            // It is not 100% clear what conditions cause this exception to happen in practice, and

            // we could never reproduce it, but it does show up extremely rarely. We already handle

            // the scenario where ghostView is null, so we just avoid crashing and log the error.

            // See b/315858472 for an investigation of the issue.

            Log.e(TAG, "Failed to create ghostView", e)

        }

        // [GhostView.addGhost], the result of which is our [ghostView], creates a [GhostView], and

        // adds it first to a [FrameLayout] container. It then adds _that_ container to an