1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
| @Composable
private fun CalendarGrid(
modifier: Modifier,
days: MutableList<CalendarDay>,
spread: MutableState<Boolean>,
selected: MutableState<CalendarDay>,
year: Int,
month: Int,
calendarMonth: MutableState<Int>,
onItemSelected: (CalendarDay) -> Unit,
onPageChanged: (PageChangedState) -> Unit,
) {
val initialPage = getMonthsPassedSince2023(year, month)
val pageState = rememberPagerState(pageCount = { 924 }, initialPage = initialPage)
val currentPage = remember { mutableIntStateOf(initialPage) }
LaunchedEffect(pageState) {
snapshotFlow { pageState.currentPage }.collect { page ->
if (spread.value) {
if (currentPage.intValue < page) {
onPageChanged(PageChangedState.NEXT)
} else if (currentPage.intValue > page) {
onPageChanged(PageChangedState.PREV)
}
Log.i("ComposeCalendar", "page: ${page}, currentPage: ${pageState.currentPage}")
currentPage.intValue = page
}
}
}
LaunchedEffect(year, month) {
val newInitialPage = getMonthsPassedSince2023(year, month)
currentPage.intValue = newInitialPage
pageState.scrollToPage(newInitialPage)
}
HorizontalPager(state = pageState, pageSpacing = 56.dp, verticalAlignment = Alignment.Top, userScrollEnabled = spread.value) { page ->
LazyVerticalGrid(
columns = GridCells.Fixed(7),
contentPadding = PaddingValues(0.dp),
modifier = Modifier.heightIn(min = 68.dp, max = (68 * 7).dp)
) {
val currentMonth = getMonthFromPage(page)
if (days.isNotEmpty()) {
Log.i("ComposeCalendar", "page: ${page}, currentPage: ${currentPage.intValue}, month: $month, currentMonth: $currentMonth, days[15].month: ${days[15].month}")
val dayList = if (page < currentPage.intValue || currentMonth < days[15].month) getWeekDays(days.first().getPreviousCalendar())
else if (page == currentPage.intValue && (currentMonth == month) && days[15].month == month) days
else getWeekDays(days.last().getNextCalendar())
items(dayList) { date ->
AnimatedVisibility(visible = spread.value) {
DayOfMonthIcon(date, selected, modifier = modifier) {
selected.value = it
calendarMonth.value = month
onItemSelected(it)
}
}
AnimatedVisibility(visible = !spread.value) {
if (date.isSameWeek(selected.value)) {
DayOfMonthIcon(date, selected, modifier = modifier) {
selected.value = it
calendarMonth.value = month
onItemSelected(it)
}
}
}
}
}
}
}
}
|
