How do I scroll Lazy list to 0th index when there’...
# composej
jasu
02/13/2022, 2:36 PMHow do I scroll Lazy list to 0th index when there’s new item added, updated or deleted to the list?
I’ve currently LaunchedEffect with notes as key but when I come to note list screen from note detail (without creating, updating or deleting the item) it scrolls the list to 0th position regardless of data changed or not?
Copy code
NoteList(
notes = viewmodel.notes.collectAsState().value,
onItemClick = { noteId ->
Log.e(TAG, "NotesListingScreen: noteId: $noteId clicked")
onEditNote(noteId)
}
) Copy code
@Composable
fun NoteList(notes: List<Note>, onItemClick: (String) -> Unit) {
val listState = rememberLazyListState()
LaunchedEffect(key1 = notes) { // when any item changes, scroll list to 0th index
listState.animateScrollToItem(0)
}
}a
Albert Chang
02/13/2022, 4:57 PMYou can use something like
Copy code
LaunchedEffect(viewmodel.notes) {
viewmodel.notes.drop(1).collect {
listState.animateScrollToItem(0)
}
}j
jasu
02/14/2022, 5:17 AMwhat is the approach @Albert Chang here?
a
Albert Chang
02/14/2022, 7:36 AMIt's basically the same as your code except that it doesn't sroll the list on the initial state.
j
jasu
02/14/2022, 1:09 PMit doesn’t work dude.
jasu
02/14/2022, 1:09 PMany other idea?
a
Albert Chang
02/14/2022, 2:02 PMHow does it not work?
j
jasu
02/14/2022, 4:30 PM Copy code
collect { }