ios-检查当前时间是否在两次之间

Question

我想检查当前时间是否在两次之间.

例如,我想检查当前时间是在今天早上10点到12点之间,还是明天早上10点到12点之间.我怎样才能做到这一点？

Answer 1

试试这个

NSDateComponents *components = [[NSCalendar currentCalendar] components:NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit fromDate:[NSDate date]];
NSInteger currentHour = [components hour];
NSInteger currentMinute = [components minute];
NSInteger currentSecond = [components second];

if (currentHour < 7 || (currentHour > 21 || currentHour == 21 && (currentMinute > 0 || currentSecond > 0))) {
    // Do Something
}

用你的时间替换7,21

我从如何比较时间得到这个

Answer 2

此解决方案适用于 swift 4

从系统获取当前时间，然后检查它是否存在该范围。在这种情况下，时间范围是上午 10:00 到下午 6:00

func CheckTimeExist()->Bool{

var timeExist:Bool
let calendar = Calendar.current
let startTimeComponent = DateComponents(calendar: calendar, hour:10)
let endTimeComponent   = DateComponents(calendar: calendar, hour: 18, minute: 00)

let now = Date()
let startOfToday = calendar.startOfDay(for: now)
let startTime    = calendar.date(byAdding: startTimeComponent, to: 
startOfToday)!
let endTime      = calendar.date(byAdding: endTimeComponent, to: 
startOfToday)!

 if startTime <= now && now <= endTime {
    print("between 10 AM and 6:00 PM")
    timeExist = true
 } else {
    print("not between 10 AM and 6:00 PM")
    timeExist = false
 }
   return timeExist
}