Merge "Send binder call to background thread." into main

import kotlinx.coroutines.flow.collectLatest

import kotlinx.coroutines.flow.distinctUntilChanged

import kotlinx.coroutines.flow.filter

import kotlinx.coroutines.flow.flowOn

import kotlinx.coroutines.flow.map

import kotlinx.coroutines.flow.onStart

import kotlinx.coroutines.launch

                .onStart { emit(Unit) }

                .map { getMediaLockScreenSetting() }

                .distinctUntilChanged()

                .flowOn(backgroundDispatcher)

                .collectLatest {

                    allowMediaPlayerOnLockScreen = it

                    updateHostVisibility()

                    val previousVisibleIndex =

                        MediaPlayerData.playerKeys().indexOfFirst { key -> it == key }

                    mediaCarouselScrollHandler.scrollToPlayer(previousVisibleIndex, mediaIndex)

                }

                    ?: mediaCarouselScrollHandler.scrollToPlayer(destIndex = mediaIndex)

                } ?: mediaCarouselScrollHandler.scrollToPlayer(destIndex = mediaIndex)

            }

        } else if (isRtl && mediaContent.childCount > 0) {

            // In RTL, Scroll to the first player as it is the rightmost player in media carousel.