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fix(reader): incorrect scroll position

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Resolves: #237
This commit is contained in:
Acclorite 2025-06-28 11:39:54 +03:00
parent 19db53473d
commit 6878ecac86
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GPG key ID: 6E54C611F6EE8593
1 changed files with 31 additions and 27 deletions
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58
app/src/main/java/ua/acclorite/book_story/presentation/reader/ReaderModel.kt
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@ -493,36 +493,40 @@ class ReaderModel @Inject constructor(
}
@OptIn(FlowPreview::class)
fun updateProgress(listState: LazyListState) {
viewModelScope.launch(Dispatchers.Main) {
snapshotFlow {
listState.firstVisibleItemIndex to listState.firstVisibleItemScrollOffset
}.distinctUntilChanged().debounce(300).collectLatest { (index, offset) ->
val progress = calculateProgress(index)
if (progress == _state.value.book.progress) return@collectLatest
val (currentChapter, currentChapterProgress) = calculateCurrentChapter(index)
suspend fun updateProgress(listState: LazyListState) {
snapshotFlow {
listState.firstVisibleItemIndex to listState.firstVisibleItemScrollOffset
}.distinctUntilChanged().debounce(300).collectLatest { (index, offset) ->
if (
_state.value.isLoading ||
listState.layoutInfo.totalItemsCount == 0 ||
_state.value.text.isEmpty() ||
_state.value.errorMessage != null
) return@collectLatest
Log.i(
READER,
"Changed progress|currentChapter: $progress; ${currentChapter?.title}"
val progress = calculateProgress(index)
val (currentChapter, currentChapterProgress) = calculateCurrentChapter(index)
Log.i(
READER,
"Changed progress|currentChapter: $progress; ${currentChapter?.title}"
)
_state.update {
it.copy(
book = it.book.copy(
progress = progress,
scrollIndex = index,
scrollOffset = offset
),
currentChapter = currentChapter,
currentChapterProgress = currentChapterProgress
)
_state.update {
it.copy(
book = it.book.copy(
progress = progress,
scrollIndex = index,
scrollOffset = offset
),
currentChapter = currentChapter,
currentChapterProgress = currentChapterProgress
)
}
updateBookUseCase(_state.value.book)
LibraryScreen.refreshListChannel.trySend(0)
HistoryScreen.refreshListChannel.trySend(0)
}
updateBookUseCase(_state.value.book)
LibraryScreen.refreshListChannel.trySend(0)
HistoryScreen.refreshListChannel.trySend(0)
}
}