loteDateTime.dayofweek返回我错误的价值
我有一个日历，这是
binding.calendarView.setOnDateChangeListener(CalendarView.OnDateChangeListener { view, year, month, dayOfMonth ->
Toast.makeText(applicationContext, "$dayOfMonth/$month/$year", Toast.LENGTH_LONG).show()
var selectedDate = LocalDateTime.of(year, month, dayOfMonth, 0, 0)
val weekdayValue = selectedDate.dayOfWeek.value
val weekdayName = selectedDate.dayOfWeek.name
})
我在星期一点击时的代码，weekdayValue = 5和weekdayName =“星期五”。 当我在星期三点击时，WeekDayValue = 7和WeekDayName =“星期日”。
我的日历观察中的第一天是2，所以星期一。 吐司向我展示了好价值观。
问题是什么 ？
I have a calendarView, here's my code
binding.calendarView.setOnDateChangeListener(CalendarView.OnDateChangeListener { view, year, month, dayOfMonth ->
Toast.makeText(applicationContext, "$dayOfMonth/$month/$year", Toast.LENGTH_LONG).show()
var selectedDate = LocalDateTime.of(year, month, dayOfMonth, 0, 0)
val weekdayValue = selectedDate.dayOfWeek.value
val weekdayName = selectedDate.dayOfWeek.name
})
When I tap on Monday, weekdayValue = 5 and weekdayName = "Friday".
When I tap on Wednesday, weekdayValue = 7 and weekdayName = "Sunday".
The first day of week in my calendarView is 2, so Monday.
The Toast show me the good values.
What is the problem ?
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不幸的是，CalendarView使用基于0的月（1月为0），而LocalDateTime使用1个基于1个月（1月为1）。您需要使用
localdateTime.of（年，月 + 1，Dayofmonth，0，0）。CalendarView unfortunately uses 0-based months (January is 0) and LocalDateTime uses 1-based months (January is 1). You need to use
LocalDateTime.of(year, month + 1, dayOfMonth, 0, 0).