how to find difference between two dates?

Asked Sep 25 '17 at 08:49

Active Oct 17 '17 at 06:09

Viewed 61 times

I am trying to calculate the difference between 2 dates(one is current date for app launch another one is current date for app killed or going to background )

app launch,

 var start_time  
 var end_time  

       let dateFormatter = DateFormatter()
                        dateFormatter.dateFormat = "dd/MM/yyyy HH:mm:ss"
       start_time = dateFormatter.string(from: Date())

app go to background,

       let dateFormatter = DateFormatter()
                        dateFormatter.dateFormat = "dd/MM/yyyy HH:mm:ss"

       end_time = dateFormatter.string(from: Date())

edited Oct 17 '17 at 06:09

asked Sep 25 '17 at 08:49

RejoylinLokeshwaran

Why do you save `String` instead of `Date` objects? – Larme Sep 25 '17 at 08:52
i m new to ios . How to declare date object in globally.. – RejoylinLokeshwaran Sep 25 '17 at 08:55
You can simply create a date variable like you would any other type of variable: `var startDate: Date` – gebirgsbärbel Sep 25 '17 at 08:58

how to find difference between two dates?

0 Answers0