feat: auto-scroll to the current episode in EpisodesScrollRow

Author: Jankin-Wu

composeApp/src/commonMain/kotlin/com/jankinwu/fntv/client/ui/component/detail/EpisodesScrollRow.kt

@@ -88,8 +88,16 @@ fun EpisodesScrollRow(
     episodes: List<EpisodeListResponse>,
     navigator: ComponentNavigator,
     modifier: Modifier = Modifier,
+    initialIndex: Int = 0,
 ) {
     val scrollState = rememberLazyListState()
+    
+    // 监听初始索引变化并滚动到指定位置
+    androidx.compose.runtime.LaunchedEffect(initialIndex) {
+        if (initialIndex >= 0 && initialIndex < episodes.size) {
+            scrollState.scrollToItem(initialIndex)
+        }
+    }
     val scrollRowItemDataList = FnDataConvertor.convertToScrollRowItemDataList(episodes)
     val favoriteViewModel: FavoriteViewModel = koinViewModel<FavoriteViewModel>()
     val favoriteUiState by favoriteViewModel.uiState.collectAsState()

composeApp/src/commonMain/kotlin/com/jankinwu/fntv/client/ui/screen/TvSeasonDetailScreen.kt

@@ -495,10 +495,16 @@ fun TvEpisodeBody(
 
                 item {
                     logger.i("episodeList: $episodeList")
+                    val currentEpisodeIndex = remember(episodeList, playInfo) {
+                        playInfo?.item?.episodeNumber?.let { episodeNumber ->
+                            episodeList.indexOfFirst { it.episodeNumber == episodeNumber }
+                        } ?: 0
+                    }
                     EpisodesScrollRow(
                         episodes = episodeList,
                         navigator,
-                        modifier = Modifier.padding(horizontal = 16.dp)
+                        modifier = Modifier.padding(horizontal = 16.dp),
+                        initialIndex = if (currentEpisodeIndex != -1) currentEpisodeIndex else 0
                     )
                     Spacer(modifier = Modifier.height(24.dp))
                 }