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Improves algorithm for placing the clicked note in a visible position when opening a new threads that need to load dynamically

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This commit is contained in:
Vitor Pamplona 2024-10-22 17:26:53 -04:00
parent c2e725ef5f
commit 89e1e20b40
1 changed files with 7 additions and 4 deletions
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11
amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/threadview/ThreadFeedView.kt
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@ -197,7 +197,6 @@ import com.vitorpamplona.quartz.events.TorrentCommentEvent
import com.vitorpamplona.quartz.events.TorrentEvent
import com.vitorpamplona.quartz.events.VideoEvent
import com.vitorpamplona.quartz.events.WikiNoteEvent
import com.vitorpamplona.quartz.utils.TimeUtils
import kotlinx.collections.immutable.toImmutableList
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
@ -236,7 +235,6 @@ fun RenderThreadFeed(
nav: INav,
) {
val items by loaded.feed.collectAsStateWithLifecycle()
val firstTimeScrolled = remember { TimeUtils.now() }
LaunchedEffect(noteId, items.list) {
// hack to allow multiple scrolls to Item while posts on the screen load.
@ -252,10 +250,15 @@ fun RenderThreadFeed(
// records before setting up the position on the feed.
//
// It jumps around, but it is the best we can do.
if (TimeUtils.now() - firstTimeScrolled < 1000) {
if (listState.firstVisibleItemIndex == 0 && listState.firstVisibleItemScrollOffset == 0 && items.list.size > 3) {
val position = items.list.indexOfFirst { it.idHex == noteId }
if (position >= 0) {
listState.scrollToItem(position, -200)
if (position > items.list.size - 3) {
listState.scrollToItem(position, 0)
} else {
listState.scrollToItem(position, -200)
}
}
}
}