如何获得Swift的当前时间？

Question

I'm trying to get the current time, and I've done this so far:

    let date = NSDate()
    let calender = NSCalendar.currentCalendar()
    let components = calender.component([.Hour, .Minute], fromDate: date)

And I then try to get the hour of the components

    let hour = components.hour

This give me "Value of type "Int" has no member 'hour'" . Any suggestions?

Answer 1

Change

let components = calender.component([.Hour, .Minute], fromDate: date)

to

let components = calender.components([.Hour, .Minute], fromDate: date)

Answer 2

NSCalendar.component(_:fromDate:) returns a single component of a date, as an Int . So your components variable is actually of type Int . Passing multiple units to component(_:fromDate:) (as you are doing) is undefined.

Try this instead:

let components = calender.components([.Hour, .Minute], fromDate: date)

Note that the first part of the method name here is components , not component .

Also, you might want to change your calender variable to calendar , since that is the correct spelling.

Answer 3

swift 4

let hh2 = (Calendar.current.component(.hour, from: Date()))
let mm2 = (Calendar.current.component(.minute, from: Date()))
let ss2 = (Calendar.current.component(.second, from: Date()))

print(hh2,":", mm2,":", ss2) 

 output: ---> 9 : 10 : 55